Sample records for juvenile common sole

  1. Spatial and ontogenetic variability in the chemical composition of juvenile common sole ( Solea solea) otoliths

    NASA Astrophysics Data System (ADS)

    Tanner, S. E.; Vasconcelos, R. P.; Reis-Santos, P.; Cabral, H. N.; Thorrold, S. R.

    2011-01-01

    A description of variations in the chemical composition of fish otoliths at different spatial scales and life history stages is a prerequisite for their use as natural tags in fish population connectivity and migration studies. Otolith geochemistry of juvenile common sole ( Solea solea), a marine migrant species collected in six Portuguese estuaries was examined. Elemental ratios (Mg:Ca, Mn:Ca, Cu:Ca, Sr:Ca, Ba:Ca, Pb:Ca) were analysed in two zones of the right otolith (corresponding to late larval and juvenile stages) using laser ablation inductively coupled plasma mass spectrometry (ICP-MS). Stable carbon and oxygen isotopes (δ 13C and δ 18O) were determined in left otoliths using isotopic ratio monitoring mass spectrometry (irm-MS). Significant differences in otolith geochemical signatures were found among estuaries, among sites within estuaries and between otolith zones. Several elemental ratios (Mg:Ca, Mn:Ca, Cu:Ca and Sr:Ca) showed consistent patterns between otolith zones and were likely influenced by environmental factors and ontogenetic effects associated with physiological changes during metamorphosis. Assignment of individuals to their collection estuary based on the otolith geochemical signatures was more accurate at the site level (81%) than among estuaries (69%). Site temperature was not correlated with any of the elemental or isotope ratios, but salinity was significantly correlated with Ba:Ca, δ 13C and δ 18O. Observed spatial variations among estuaries and sites within estuaries indicate that geochemical signatures in otoliths are accurate natural tags of estuarine habitat in common sole. Nevertheless, the significant variations observed between otolith zones should be taken into account in the design of population connectivity studies.

  2. Habitat selection of juvenile sole (Solea solea L.): Consequences for shoreface nourishment

    NASA Astrophysics Data System (ADS)

    Post, Marjolein H. M.; Blom, Ewout; Chen, Chun; Bolle, Loes J.; Baptist, Martin J.

    2017-04-01

    The shallow coastal zone is an essential nursery habitat for juvenile flatfish species such as sole (Solea solea L.). The increased frequency of shoreface nourishments along the coast is likely to affect this nursery function by altering important habitat conditions, including sediment grain size. Sediment preference of juvenile sole (41-91 mm) was studied in a circular preference chamber in order to understand the relationship between grain size and sole distribution. The preference tests were carried out at 11 °C and 20 °C to reflect seasonal influences. The juveniles showed a significant preference for finer sediments. This preference was not length dependent (within the length range tested) nor affected by either temperatures. Juvenile sole have a small home range and are not expected to move in response to unfavourable conditions. As a result, habitat alterations may have consequences for juvenile survival and subsequently for recruitment to adult populations. It is therefore important to carefully consider nourishment grain size characteristics to safeguard suitable nursery habitats for juvenile sole.

  3. Habitat Suitability Index Models: Juvenile English sole

    USGS Publications Warehouse

    Toole, Christopher L.; Barnhart, Roger A.; Onuf, Christopher P.

    1987-01-01

    English sole (Parophrys vetulus) is one of the major commercial groundfish species caught along the Pacific coast. Landings in the United States and Canada averaged 4,947 t/yr between 1975 and 1984, placing it third in importance among flatfish caught by Pacific coast trawlers (Pacific Marine Fisheries Commission 1985). Juvenile English sole are also among the most abundant fishes in many bays and estuaries along the Pacific (Westrheim 1955; Sopher 1974; Ambrose 1976; Rogers 1985). The English sole is not an important recreational species.

  4. Hypoxia tolerance of common sole juveniles depends on dietary regime and temperature at the larval stage: evidence for environmental conditioning.

    PubMed

    Zambonino-Infante, José L; Claireaux, Guy; Ernande, Bruno; Jolivet, Aurélie; Quazuguel, Patrick; Sévère, Armelle; Huelvan, Christine; Mazurais, David

    2013-05-07

    An individual's environmental history may have delayed effects on its physiology and life history at later stages in life because of irreversible plastic responses of early ontogenesis to environmental conditions. We chose a marine fish, the common sole, as a model species to study these effects, because it inhabits shallow marine areas highly exposed to environmental changes. We tested whether temperature and trophic conditions experienced during the larval stage had delayed effects on life-history traits and resistance to hypoxia at the juvenile stage. We thus examined the combined effect of global warming and hypoxia in coastal waters, which are potential stressors to many estuarine and coastal marine fishes. Elevated temperature and better trophic conditions had a positive effect on larval growth and developmental rates; warmer larval temperature had a delayed positive effect on body mass and resistance to hypoxia at the juvenile stage. The latter suggests a lower oxygen demand of individuals that had experienced elevated temperatures during larval stages. We hypothesize that an irreversible plastic response to temperature occurred during early ontogeny that allowed adaptive regulation of metabolic rates and/or oxygen demand with long-lasting effects. These results could deeply affect predictions about impacts of global warming and eutrophication on marine organisms.

  5. Characterization of stress coping style in Senegalese sole (Solea senegalensis) juveniles and breeders for aquaculture.

    PubMed

    Ibarra-Zatarain, Z; Fatsini, E; Rey, S; Chereguini, O; Martin, I; Rasines, I; Alcaraz, C; Duncan, N

    2016-11-01

    The aim of this work was to characterize stress coping styles of Senegalese sole ( Solea senegalensis ) juveniles and breeders and to select an operational behavioural screening test (OBST) that can be used by the aquaculture industry to classify and select between behavioural phenotypes in order to improve production indicators. A total of 61 juveniles and 59 breeders were subjected to five individual behavioural tests and two grouping tests. At the end of the individual tests, all animals were blood sampled in order to measure cortisol, glucose and lactate. Three tests (restraining, new environment and confinement) characterized the stress coping style behaviour of Senegalese sole juveniles and breeders and demonstrated inter-individual consistency. Further, the tests when incorporated into a principal components analysis (PCA) (i) identified two principal axes of personality traits: 'fearfulness-reactivity' and 'activity-exploration', (ii) were representative of the physiological axis of stress coping style, and (iii) were validated by established group tests. This study proposed for the first time three individual coping style tests that reliably represented proactive and reactive personalities of Senegalese sole juveniles and breeders. In addition, the three proposed tests met some basic operational criteria (rapid testing, no special equipment and easy to apply and interpret) that could prove attractive for fish farmers to identify fish with a specific behaviour that gives advantages in the culture system and that could be used to establish selection-based breeding programmes to improve domestication and production.

  6. Characterization of stress coping style in Senegalese sole (Solea senegalensis) juveniles and breeders for aquaculture

    PubMed Central

    Fatsini, E.; Rey, S.; Chereguini, O.; Martin, I.; Rasines, I.; Duncan, N.

    2016-01-01

    The aim of this work was to characterize stress coping styles of Senegalese sole (Solea senegalensis) juveniles and breeders and to select an operational behavioural screening test (OBST) that can be used by the aquaculture industry to classify and select between behavioural phenotypes in order to improve production indicators. A total of 61 juveniles and 59 breeders were subjected to five individual behavioural tests and two grouping tests. At the end of the individual tests, all animals were blood sampled in order to measure cortisol, glucose and lactate. Three tests (restraining, new environment and confinement) characterized the stress coping style behaviour of Senegalese sole juveniles and breeders and demonstrated inter-individual consistency. Further, the tests when incorporated into a principal components analysis (PCA) (i) identified two principal axes of personality traits: ‘fearfulness-reactivity’ and ‘activity-exploration’, (ii) were representative of the physiological axis of stress coping style, and (iii) were validated by established group tests. This study proposed for the first time three individual coping style tests that reliably represented proactive and reactive personalities of Senegalese sole juveniles and breeders. In addition, the three proposed tests met some basic operational criteria (rapid testing, no special equipment and easy to apply and interpret) that could prove attractive for fish farmers to identify fish with a specific behaviour that gives advantages in the culture system and that could be used to establish selection-based breeding programmes to improve domestication and production. PMID:28018634

  7. Multi-element otolith chemistry of juvenile sole ( Solea solea), whiting ( Merlangius merlangus) and European seabass ( Dicentrarchus labrax) in the Thames Estuary and adjacent coastal regions

    NASA Astrophysics Data System (ADS)

    Leakey, Chris D. B.; Attrill, Martin J.; Fitzsimons, Mark F.

    2009-04-01

    Estuaries are regarded as valuable nursery habitats for many commercially important marine fishes, potentially providing a thermal resource, refuge from predators and a source of abundant prey. To assess the extent of estuarine use by juvenile (0+) common sole ( Solea solea), whiting ( Merlangius merlangus) and European seabass ( Dicentrarchus labrax) we: (1) developed techniques to distinguish between estuarine and coastally-caught juveniles using otolith chemistry; and (2) examined the accuracy with which multi-elemental signatures could re-classify juveniles to their region of collection. High-resolution solution-based inductively coupled plasma mass spectrometry (HB-SB-ICPMS) was used to quantify 32 elements within the juvenile otoliths; 14 elements occurred above detection limits for all samples. Some elemental distributions demonstrated clear differences between estuarine and coastally-caught fish. Multivariate analysis of the otolith chemistry data resulted in 95-100% re-classification accuracy to the region of collection. Estuarine and coastal signatures were most clearly defined for sole which, compared to bass and whiting, have low mobility and are less likely to move from estuarine to coastal habitats between larval settlement and later migration to adult stocks. Sole were the only species to reveal an energetic benefit associated with an estuarine juvenile phase. The physiological ability of bass to access upper estuarine regions was consistent with some elemental data, while the high mobility and restricted range of whiting resulted in less distinct otolith chemistries.

  8. Thermal preference of juvenile Dover sole (Solea solea) in relation to thermal acclimation and optimal growth temperature.

    PubMed

    Schram, Edward; Bierman, Stijn; Teal, Lorna R; Haenen, Olga; van de Vis, Hans; Rijnsdorp, Adriaan D

    2013-01-01

    Dover sole (Solea solea) is an obligate ectotherm with a natural thermal habitat ranging from approximately 5 to 27°C. Thermal optima for growth lie in the range of 20 to 25°C. More precise information on thermal optima for growth is needed for cost-effective Dover sole aquaculture. The main objective of this study was to determine the optimal growth temperature of juvenile Dover sole (Solea solea) and in addition to test the hypothesis that the final preferendum equals the optimal growth temperature. Temperature preference was measured in a circular preference chamber for Dover sole acclimated to 18, 22 and 28°C. Optimal growth temperature was measured by rearing Dover sole at 19, 22, 25 and 28°C. The optimal growth temperature resulting from this growth experiment was 22.7°C for Dover sole with a size between 30 to 50 g. The temperature preferred by juvenile Dover sole increases with acclimation temperature and exceeds the optimal temperature for growth. A final preferendum could not be detected. Although a confounding effect of behavioural fever on temperature preference could not be entirely excluded, thermal preference and thermal optima for physiological processes seem to be unrelated in Dover sole.

  9. Thermal Preference of Juvenile Dover Sole (Solea solea) in Relation to Thermal Acclimation and Optimal Growth Temperature

    PubMed Central

    Schram, Edward; Bierman, Stijn; Teal, Lorna R.; Haenen, Olga; van de Vis, Hans; Rijnsdorp, Adriaan D.

    2013-01-01

    Dover sole (Solea solea) is an obligate ectotherm with a natural thermal habitat ranging from approximately 5 to 27°C. Thermal optima for growth lie in the range of 20 to 25°C. More precise information on thermal optima for growth is needed for cost-effective Dover sole aquaculture. The main objective of this study was to determine the optimal growth temperature of juvenile Dover sole (Solea solea) and in addition to test the hypothesis that the final preferendum equals the optimal growth temperature. Temperature preference was measured in a circular preference chamber for Dover sole acclimated to 18, 22 and 28°C. Optimal growth temperature was measured by rearing Dover sole at 19, 22, 25 and 28°C. The optimal growth temperature resulting from this growth experiment was 22.7°C for Dover sole with a size between 30 to 50 g. The temperature preferred by juvenile Dover sole increases with acclimation temperature and exceeds the optimal temperature for growth. A final preferendum could not be detected. Although a confounding effect of behavioural fever on temperature preference could not be entirely excluded, thermal preference and thermal optima for physiological processes seem to be unrelated in Dover sole. PMID:23613837

  10. Occurrence, distribution and prey items of juvenile marbled sole Pseudopleuronectes yokohamae around a submarine groundwater seepage on a tidal flat in southwestern Japan

    NASA Astrophysics Data System (ADS)

    Hata, Masaki; Sugimoto, Ryo; Hori, Masakazu; Tomiyama, Takeshi; Shoji, Jun

    2016-05-01

    Occurrence, distribution and prey items of juvenile marbled sole Pseudopleuronectes yokohamae were investigated around a submarine groundwater seepage on a tidal flat in southwestern Japan. Spatial distribution of radon-222 (222Rn) concentration in water showed more submarine groundwater seepage in the offshore area. The lower salinities at offshore sampling stations corresponded with the highest 222Rn concentrations. Juvenile marbled sole were collected from March through June with seasonal peak in April in 2013 and 2014. Mean abundance of juvenile marbled sole was highest at the second most offshore station where high submarine groundwater seepage was indicated. Major prey items in the stomachs of the marbled sole at the post-settlement stage (10-40 mm) were small crustaceans such as cumaceans and gammarids, which were partially replaced with polychaetes in larger juveniles (40-50 mm). Abundance of these major prey items was also higher at offshore stations. A negative correlation between gammarid abundance and salinity indicated a higher concentration of gammarids around the area of high submarine groundwater seepage, a pattern not observed for the other major prey organisms. Stable isotope analysis showed greater dependence of post-settlement stage marbled sole on the small crustaceans with low δ13C indicating that nutrients of terrestrial origin contribute to production of the juvenile marbled sole on the tidal flat.

  11. Depth and substrate as determinants of distribution of juvenile flathead sole (Hippoglossoides elassodon) and rock sole (Pleuronectes bilineatus), in Kachemak Bay, Alaska

    USGS Publications Warehouse

    Abookire, Alisa A.; Norcross, Brenda L.

    1998-01-01

    Three transects in Kachemak Bay, Alaska, were sampled in September 1994, May and August 1995, and February, May, and August 1996. Juvenile flathead sole, Hippoglossoides elassodon, and rock sole, Pleuronectes bilineatus, were the most abundant flatfishes, comprising 65-85% of all fiatfishes captured at any period. Collections of fish and sediments were made at regular depth contour intervals of l0 m. Habitat distribution was described by depth at 10 m increments and sediment percent weights of gravel, sand, and mud. Year-round habitat of flathead sole age-0 was primarily from 40 to 60 m, and age-1 habitat was primarily from 40 to 80 m. Summer habitat of rock sole age-0 and -1 was from 10 to 30 m, and in winter they moved offshore to depths of up to 150 m. Both age classes of flathead sole were most abundant on mixed mud sediments, while age-1 were also in high abundance on muddy sand sediments. Rock sole age-0 and -1 were most abundant on sand, though age-1 were also found on a variety of sediments both finer and coarser grained than sand. Flathead sole and rock sole had distinctive depth and sediment habitats. When habitat overlap occurred between the species, it was most often due to rock sole moving offshore in the winter. Abundances were not significantly different among seasons for age-1 flatfishes.

  12. The Great Melting Pot. Common Sole Population Connectivity Assessed by Otolith and Water Fingerprints

    PubMed Central

    Morat, Fabien; Letourneur, Yves; Dierking, Jan; Pécheyran, Christophe; Bareille, Gilles; Blamart, Dominique; Harmelin-Vivien, Mireille

    2014-01-01

    Quantifying the scale and importance of individual dispersion between populations and life stages is a key challenge in marine ecology. The common sole (Solea solea), an important commercial flatfish in the North Sea, Atlantic Ocean and the Mediterranean Sea, has a marine pelagic larval stage, a benthic juvenile stage in coastal nurseries (lagoons, estuaries or shallow marine areas) and a benthic adult stage in deeper marine waters on the continental shelf. To date, the ecological connectivity among these life stages has been little assessed in the Mediterranean. Here, such an assessment is provided for the first time for the Gulf of Lions, NW Mediterranean, based on a dataset on otolith microchemistry and stable isotopic composition as indicators of the water masses inhabited by individual fish. Specifically, otolith Ba/Ca and Sr/Ca profiles, and δ13C and δ18O values of adults collected in four areas of the Gulf of Lions were compared with those of young-of-the-year collected in different coastal nurseries. Results showed that a high proportion of adults (>46%) were influenced by river inputs during their larval stage. Furthermore Sr/Ca ratios and the otolith length at one year of age revealed that most adults (∼70%) spent their juvenile stage in nurseries with high salinity, whereas the remainder used brackish environments. In total, data were consistent with the use of six nursery types, three with high salinity (marine areas and two types of highly saline lagoons) and three brackish (coastal areas near river mouths, and two types of brackish environments), all of which contributed to the replenishment of adult populations. These finding implicated panmixia in sole population in the Gulf of Lions and claimed for a habitat integrated management of fisheries. PMID:24475151

  13. The great melting pot. Common sole population connectivity assessed by otolith and water fingerprints.

    PubMed

    Morat, Fabien; Letourneur, Yves; Dierking, Jan; Pécheyran, Christophe; Bareille, Gilles; Blamart, Dominique; Harmelin-Vivien, Mireille

    2014-01-01

    Quantifying the scale and importance of individual dispersion between populations and life stages is a key challenge in marine ecology. The common sole (Solea solea), an important commercial flatfish in the North Sea, Atlantic Ocean and the Mediterranean Sea, has a marine pelagic larval stage, a benthic juvenile stage in coastal nurseries (lagoons, estuaries or shallow marine areas) and a benthic adult stage in deeper marine waters on the continental shelf. To date, the ecological connectivity among these life stages has been little assessed in the Mediterranean. Here, such an assessment is provided for the first time for the Gulf of Lions, NW Mediterranean, based on a dataset on otolith microchemistry and stable isotopic composition as indicators of the water masses inhabited by individual fish. Specifically, otolith Ba/Ca and Sr/Ca profiles, and δ(13)C and δ(18)O values of adults collected in four areas of the Gulf of Lions were compared with those of young-of-the-year collected in different coastal nurseries. Results showed that a high proportion of adults (>46%) were influenced by river inputs during their larval stage. Furthermore Sr/Ca ratios and the otolith length at one year of age revealed that most adults (∼70%) spent their juvenile stage in nurseries with high salinity, whereas the remainder used brackish environments. In total, data were consistent with the use of six nursery types, three with high salinity (marine areas and two types of highly saline lagoons) and three brackish (coastal areas near river mouths, and two types of brackish environments), all of which contributed to the replenishment of adult populations. These finding implicated panmixia in sole population in the Gulf of Lions and claimed for a habitat integrated management of fisheries.

  14. Common sole in the northern and central Adriatic Sea: Spatial management scenarios to rebuild the stock

    NASA Astrophysics Data System (ADS)

    Scarcella, Giuseppe; Grati, Fabio; Raicevich, Saša; Russo, Tommaso; Gramolini, Roberto; Scott, Robert D.; Polidori, Piero; Domenichetti, Filippo; Bolognini, Luca; Giovanardi, Otello; Celić, Igor; Sabatini, Laura; Vrgoč, Nedo; Isajlović, Igor; Marčeta, Bojan; Fabi, Gianna

    2014-05-01

    The northern and central Adriatic Sea represents an important spawning and aggregation area for common sole (Solea solea) and provides for around 20% of the Mediterranean landings. In this area, this resource is mainly exploited with rapido trawl and set nets. The stock is not yet depleted and faces a situation of growth overfishing. The comparison between the spatial distribution by age of S. solea and the geographic patterns of the rapido trawl fishing effort evidenced an overlapping of this fishing activity with the area where juveniles concentrate (age groups 0-2). The majority of spawners inhabits specific offshore areas, here defined as ‘sole sanctuaries', where high concentrations of debris and benthic communities make difficult trawling with rapido. The aim of this study was to evaluate existing spatial management regimes and potential new spatial and temporal closures in the northern and central Adriatic Sea using a simple modelling tool. Two spatial simulations were carried out in order to verify the effectiveness of complementary methods for the management of fisheries: the ban of rapido trawling from October to December within 6 nautical miles and 9 nautical miles of the Italian coast. The focus of the simulation is that the effort of the rapido trawl is moved far from the coast during key sole recruitment periods, when the juveniles are moving from the inshore nursery area toward the offshore feeding grounds. The management scenarios showed that a change in selectivity would lead to a clear increase in the spawning stock biomass and an increase in landings of S. solea in the medium-term. The rapido trawl activity could be managed by using a different logic, bearing in mind that catches and incomes would increase with small changes in the spatial pattern of the fishing effort. The present study highlights the importance of taking into account spatial dimensions of fishing fleets and the possible interactions that can occur between fleets and target

  15. Movements of juvenile common ravens in an arid landscape

    USGS Publications Warehouse

    Webb, W.C.; Boarman, W.I.; Rotenberry, J.T.

    2009-01-01

    Movement patterns of juvenile birds are poorly understood, yet critically important ecological phenomena, especially for species with a prolonged juvenile period. We evaluated postfledging movements of juvenile common ravens (Corvus corax) in a western Mojave Desert landscape composed of a mosaic of natural and anthropogenic elements. Generally, ravens do not begin breeding until after their fourth year. We marked 2 annual cohorts of juvenile ravens and followed them from dispersal from their natal territory for up to 33 months. Movements of juvenile common ravens were similar for males and females. Conspecifics and confined livestock feeding operations represented important resources for juvenile ravens, and juveniles were rarely located in open desert. However, initial movements from the natal territory to the nearest communal point subsidy rather than the closest anthropogenic resource suggested juvenile dispersal was influenced by the combination of conspecifics and anthropogenic resources, rather than the distribution of those resources. Land managers concerned with growing raven populations should reduce access to concentrated anthropogenic resources such as landfills and dairies, which serve as important resources for juveniles. Because juvenile ravens rarely venture into open desert, reducing their numbers by lethal removal or other means is unlikely to lessen raven predation of desert tortoises (Gopherus agassizii).

  16. First-Time Migration in Juvenile Common Cuckoos Documented by Satellite Tracking

    PubMed Central

    Willemoes, Mikkel; Thomson, Robert L.; Tolvanen, Jere; Rutila, Jarkko; Samaš, Peter; Strandberg, Roine; Grim, Tomáš; Fossøy, Frode; Stokke, Bård Gunnar; Thorup, Kasper

    2016-01-01

    Being an obligate parasite, juvenile common cuckoos Cuculus canorus are thought to reach their African wintering grounds from Palearctic breeding grounds without guidance from experienced conspecifics but this has not been documented. We used satellite tracking to study naïve migrating common cuckoos. Juvenile cuckoos left breeding sites in Finland moving slowly and less consistently directed than adult cuckoos. Migration of the juveniles (N = 5) was initiated later than adults (N = 20), was directed toward the southwest–significantly different from the initial southeast direction of adults–and included strikingly long Baltic Sea crossings (N = 3). After initial migration of juvenile cuckoos toward Poland, the migration direction changed and proceeded due south, directly toward the winter grounds, as revealed by a single tag transmitting until arrival in Northwest Angola where northern adult cuckoos regularly winter. Compared to adults, the juvenile travelled straighter and faster, potentially correcting for wind drift along the route. That both migration route and timing differed from adults indicates that juvenile cuckoos are able to reach proper wintering grounds independently, guided only by their innate migration programme. PMID:28005960

  17. MORPHOMETRIC EVIDENCE FOR NUTRITIONAL STRESS IN ENGLISH SOLE

    EPA Science Inventory

    We present an application of the powerful thin plate spline method of morphometric analysis to demonstrate its utility for detecting environmental stress in an estuarine flatfish. Juvenile English sole (Pleuronectes vetulus) were captured from Yaquina Bay, Oregon, photographed w...

  18. Distribution and habitat associations of juvenile Common Snook in the lower Rio Grande, Texas

    USGS Publications Warehouse

    Huber, Caleb G.; Grabowski, Timothy B.; Patino, Reynaldo; Pope, Kevin L.

    2014-01-01

    Common Snook Centropomus undecimalis were once abundant off the Texas coast, but these populations are now characterized by low abundance and erratic recruitment. Most research concerning Common Snook in North America has been conducted in Florida and very little is known about the specific biology and habitat needs of Common Snook in Texas. The primary objective of this study was to describe the habitat use patterns of juvenile Common Snook and their role in the fish assemblage in the lower portion of the Rio Grande, Texas. Secondarily, we documented the relationship between age and juvenile reproductive development. Fish were collected during January–March 2006 from the lower 51.5 km of the Rio Grande using a bottom trawl and boat-mounted electrofisher. Measurements of water quality and other habitat traits were recorded at each sampling site. We captured 225 Common Snook exclusively in freshwater habitats above river kilometer 12.9. The distribution of juvenile Common Snook was not random, but influenced primarily by turbidity and dissolved oxygen. Sex differentiation and gonadal development based on histological examination of gonads established that age-1 and age-2 Common Snook were juvenile, prepubertal males. There was no difference between the age groups in their overall distribution in the river. However, age-2 Common Snook were associated with deeper areas with faster currents, higher conductivity, and steeper banks. Overall, Common Snook in the lower Rio Grande show substantial differences in habitat use than their counterparts in other parts of the range of the species, but it is unclear whether this is due to differences in habitat availability, behavioral plasticity, or some combination thereof.

  19. Accurate aging of juvenile salmonids using fork lengths

    USGS Publications Warehouse

    Sethi, Suresh; Gerken, Jonathon; Ashline, Joshua

    2017-01-01

    Juvenile salmon life history strategies, survival, and habitat interactions may vary by age cohort. However, aging individual juvenile fish using scale reading is time consuming and can be error prone. Fork length data are routinely measured while sampling juvenile salmonids. We explore the performance of aging juvenile fish based solely on fork length data, using finite Gaussian mixture models to describe multimodal size distributions and estimate optimal age-discriminating length thresholds. Fork length-based ages are compared against a validation set of juvenile coho salmon, Oncorynchus kisutch, aged by scales. Results for juvenile coho salmon indicate greater than 95% accuracy can be achieved by aging fish using length thresholds estimated from mixture models. Highest accuracy is achieved when aged fish are compared to length thresholds generated from samples from the same drainage, time of year, and habitat type (lentic versus lotic), although relatively high aging accuracy can still be achieved when thresholds are extrapolated to fish from populations in different years or drainages. Fork length-based aging thresholds are applicable for taxa for which multiple age cohorts coexist sympatrically. Where applicable, the method of aging individual fish is relatively quick to implement and can avoid ager interpretation bias common in scale-based aging.

  20. Modelling larval dispersal dynamics of common sole (Solea solea) along the western Iberian coast

    NASA Astrophysics Data System (ADS)

    Tanner, Susanne E.; Teles-Machado, Ana; Martinho, Filipe; Peliz, Álvaro; Cabral, Henrique N.

    2017-08-01

    Individual-based coupled physical-biological models have become the standard tool for studying ichthyoplankton dynamics and assessing fish recruitment. Here, common sole (Solea solea L.), a flatfish of high commercial importance in Europe was used to evaluate transport of eggs and larvae and investigate the connectivity between spawning and nursery areas along the western Iberian coast as spatio-temporal variability in dispersal and recruitment patterns can result in very strong or weak year-classes causing large fluctuations in stock size. A three-dimensional particle tracking model coupled to Regional Ocean Modelling System model was used to investigate variability of sole larvae dispersal along the western Iberian coast over a five-year period (2004-2009). A sensitivity analysis evaluating: (1) the importance of diel vertical migrations of larvae and (2) the size of designated recruitment areas was performed. Results suggested that connectivity patterns of sole larvae dispersal and their spatio-temporal variability are influenced by the configuration of the coast with its topographical structures and thus the suitable recruitment area available as well as the wind-driven mesoscale circulation along the Iberian coast.

  1. The potential effects of pre-settlement processes on post-settlement growth and survival of juvenile northern rock sole (Lepidopsetta polyxystra) in Gulf of Alaska nursery habitats

    NASA Astrophysics Data System (ADS)

    Fedewa, Erin J.; Miller, Jessica A.; Hurst, Thomas P.; Jiang, Duo

    2017-04-01

    Early life history traits in marine fish such as growth, size, and timing of life history transitions often vary in response to environmental conditions. Identifying the potential effects of trait variation across life history stages is critical to understanding growth, recruitment, and survival. Juvenile northern rock sole (Lepidopsetta polyxystra) were collected (2005, 2007, 2009-2011) from two coastal nurseries in the Gulf of Alaska during the early post-settlement period (July-August) to examine variation in early life history traits in relation to water temperature and juvenile densities in nurseries as well as to evaluate the potential for carry-over effects. Size-at-hatch, larval growth, metamorphosis size and timing, and post-metamorphic and recent growth of juveniles were quantified using otolith structural analysis and compared across years and sites. Additionally, traits of fish caught in July and August were compared for evidence of selective mortality. Post-metamorphic and recent growth were related to temperatures in nurseries as well as temperatures during the larval period, indicating a direct influence of concurrent nursery temperatures and a potential indirect effect of thermal conditions experienced by larvae. Correlations between metamorphic traits and fish size at capture demonstrated that interannual variation in size persisted across life history stages regardless of post-settlement growth patterns. No evidence of density-dependent growth or growth-selective mortality were detected during the early post-settlement period; however, differences in hatch size and metamorphosis timing between fish collected in July and August indicate a selective loss of individuals although the pattern varied across years. Overall, variation in size acquired early in life and temperature effects on the phenology of metamorphosis may influence the direction of selection and survival of northern rock sole.

  2. Juvenile groundfish habitat in Kachemak Bay, Alaska, during late summer

    USGS Publications Warehouse

    Abookire, Alisa A.; Piatt, John F.; Norcross, Brenda L.

    2001-01-01

    We investigated the habitat of juvenile groundfishes in relation to depth, water temperature, and salinity in Kachemak Bay, Alaska. Stations ranging in depth from 10 to 70 m and with sand or mud-sand substrates were sampled with a small-meshed beam trawl in August-September of 1994 to 1999. A total of 8,201 fishes were captured, comprising at least 52 species. Most fishes (91%) had a total length 5% of the total catch) were flathead sole Hippoglossoides elassodon, slim sculpin Radulinus asprellus, Pacific halibut Hippoglossus stenolepis, and arrowtooth flounder Atheresthes stomias. Depth accounted for most of the spatial variability in juvenile groundfish abundance, and neither temperature nor salinity was correlated with fish abundance. Juvenile groundfishes concentrated in either shallow (less than or equal to 20 m) or deep (50-70 m) water, with co-occurrence of some species between 30-40 m. Shallow fishes were the rock soles, Pacific halibut, and great sculpin Myoxocephalus polyacanthocephalus. Deep species were flathead sole, slim sculpin, spinycheek starsnout Bathyagonus infraspinatus, rex sole Glyptocephalus zachirus, tadpole sculpin Psychrolutes paradoxus, and whitebarred prickleback Poroclinus rothrocki. This 6-year study provides baseline data on relative abundance and distribution of juvenile groundfishes in Kachemak Bay and may provide a useful tool for predicting the presence of species in similar habitats in other areas of Alaska.

  3. Juvenile angiofibroma

    MedlinePlus

    Nasal tumor; Angiofibroma - juvenile; Benign nasal tumor; Juvenile nasal angiofibroma; JNA ... Juvenile angiofibroma is not very common. It is most often found in adolescent boys. The tumor contains many blood ...

  4. Good practices for common sole assessment in the Adriatic Sea: Genetic and morphological differentiation of Solea solea (Linnaeus, 1758) from S. aegyptiaca (Chabanaud, 1927) and stock identification

    NASA Astrophysics Data System (ADS)

    Sabatini, Laura; Bullo, Marianna; Cariani, Alessia; Celić, Igor; Ferrari, Alice; Guarniero, Ilaria; Leoni, Simone; Marčeta, Bojan; Marcone, Alessandro; Polidori, Piero; Raicevich, Saša; Tinti, Fausto; Vrgoč, Nedo; Scarcella, Giuseppe

    2018-07-01

    In the Adriatic Sea two cryptic species of sole coexist, the common and Egyptian sole. Soles are one of the most valuable demersal fishery resources in the Adriatic Sea, so a correct species identification is crucial in order to perform stock assessment and implement effective management measures based on reliable and accurate data. In this study specimens collected during fishery-independent and fishery-dependent activities in the Adriatic were analyzed and identified coupling morphological and genetic approaches. A comparison of these two methods for the sole species identification was carried out to assess the most effective, accurate and practical diagnostic morphological key-character(s). Results showed that external characters, in particular features of the posterior dorsal and anal fins, are valid and accurate morphological markers. Based on these traits, a practical identification key of the two sibling species was proposed. Moreover, it was possible to estimate the extent of the error due to species misidentification introduced in the common sole stock assessment carried out in the Northern-central Adriatic Sea (GSA17). A 5% bias in the correct identification of common sole specimens was detected. However, this bias was shown not to affect the common sole stock assessment. Moreover, the genetic profiling of the Adriatic common sole allowed estimating genetic diversity and assessing population structure. Significant divergence between common soles inhabiting the eastern part of the Southern Adriatic Sea and those collected from the other areas of the basin was confirmed. Therefore, the occurrence of genetically differentiated subpopulations supports the need to implement independent stock assessments and management measures.

  5. Juvenile pityriasis rubra pilaris: report of 28 cases in Taiwan.

    PubMed

    Yang, Chao-Chun; Shih, I-Hsin; Lin, Wan-Lung; Yu, Yi-Sheng; Chiu, Hsien-Ching; Huang, Po-Han; Cheng, Yu-Wen; Lee, Julia Yu-Yun; Chen, WenChieh

    2008-12-01

    Pityriasis rubra pilaris (PRP) is a papulosquamous dermatosis uncommon in juveniles. Large-scale studies are limited, especially from Asian countries. We sought to analyze the clinical manifestations of juvenile PRP in Taiwanese patients and compare them with reported series in the literature. The diagnosis of juvenile PRP was made based on clinical-histopathologic correlation. The therapeutic response and disease course were followed up by re-examination of the patients or by telephone. A total of 47 patients were identified, with histopathologic confirmation of the clinical diagnosis of juvenile PRP in 28 cases. A preponderance of Griffiths' type IV PRP (85.7%) rather than type III PRP (14.3%) was found. Palmoplantar hyperkeratosis appeared to be a cardinal feature. In patients with type IV PRP, skin lesions in areas other than the elbows/knees and palms/soles were common. Treatment with systemic acitretin in 6 patients failed to effect a dose- or time-dependent improvement. In contrast with other studies, two thirds of our patients with type III and IV juvenile PRP had a protracted course lasting more than 3 years. This study was a retrospective review. Patient compliance with treatment was frequently poor. Type IV juvenile PRP predominated but our cases showed a wider distribution of skin lesions than is typically described. When children present with an acute onset of diffuse palmoplantar hyperkeratosis, a diagnosis of juvenile PRP should be considered. Because of the divergent clinical manifestations of juvenile PRP in different populations, there is a need to modify and re-evaluate classification systems based on regional differences.

  6. Common sole larvae survive high levels of pile-driving sound in controlled exposure experiments.

    PubMed

    Bolle, Loes J; de Jong, Christ A F; Bierman, Stijn M; van Beek, Pieter J G; van Keeken, Olvin A; Wessels, Peter W; van Damme, Cindy J G; Winter, Hendrik V; de Haan, Dick; Dekeling, René P A

    2012-01-01

    In view of the rapid extension of offshore wind farms, there is an urgent need to improve our knowledge on possible adverse effects of underwater sound generated by pile-driving. Mortality and injuries have been observed in fish exposed to loud impulse sounds, but knowledge on the sound levels at which (sub-)lethal effects occur is limited for juvenile and adult fish, and virtually non-existent for fish eggs and larvae. A device was developed in which fish larvae can be exposed to underwater sound. It consists of a rigid-walled cylindrical chamber driven by an electro-dynamical sound projector. Samples of up to 100 larvae can be exposed simultaneously to a homogeneously distributed sound pressure and particle velocity field. Recorded pile-driving sounds could be reproduced accurately in the frequency range between 50 and 1000 Hz, at zero to peak pressure levels up to 210 dB re 1µPa(2) (zero to peak pressures up to 32 kPa) and single pulse sound exposure levels up to 186 dB re 1µPa(2)s. The device was used to examine lethal effects of sound exposure in common sole (Solea solea) larvae. Different developmental stages were exposed to various levels and durations of pile-driving sound. The highest cumulative sound exposure level applied was 206 dB re 1µPa(2)s, which corresponds to 100 strikes at a distance of 100 m from a typical North Sea pile-driving site. The results showed no statistically significant differences in mortality between exposure and control groups at sound exposure levels which were well above the US interim criteria for non-auditory tissue damage in fish. Although our findings cannot be extrapolated to fish larvae in general, as interspecific differences in vulnerability to sound exposure may occur, they do indicate that previous assumptions and criteria may need to be revised.

  7. Common Sole Larvae Survive High Levels of Pile-Driving Sound in Controlled Exposure Experiments

    PubMed Central

    Bolle, Loes J.; de Jong, Christ A. F.; Bierman, Stijn M.; van Beek, Pieter J. G.; van Keeken, Olvin A.; Wessels, Peter W.; van Damme, Cindy J. G.; Winter, Hendrik V.; de Haan, Dick; Dekeling, René P. A.

    2012-01-01

    In view of the rapid extension of offshore wind farms, there is an urgent need to improve our knowledge on possible adverse effects of underwater sound generated by pile-driving. Mortality and injuries have been observed in fish exposed to loud impulse sounds, but knowledge on the sound levels at which (sub-)lethal effects occur is limited for juvenile and adult fish, and virtually non-existent for fish eggs and larvae. A device was developed in which fish larvae can be exposed to underwater sound. It consists of a rigid-walled cylindrical chamber driven by an electro-dynamical sound projector. Samples of up to 100 larvae can be exposed simultaneously to a homogeneously distributed sound pressure and particle velocity field. Recorded pile-driving sounds could be reproduced accurately in the frequency range between 50 and 1000 Hz, at zero to peak pressure levels up to 210 dB re 1µPa2 (zero to peak pressures up to 32 kPa) and single pulse sound exposure levels up to 186 dB re 1µPa2s. The device was used to examine lethal effects of sound exposure in common sole (Solea solea) larvae. Different developmental stages were exposed to various levels and durations of pile-driving sound. The highest cumulative sound exposure level applied was 206 dB re 1µPa2s, which corresponds to 100 strikes at a distance of 100 m from a typical North Sea pile-driving site. The results showed no statistically significant differences in mortality between exposure and control groups at sound exposure levels which were well above the US interim criteria for non-auditory tissue damage in fish. Although our findings cannot be extrapolated to fish larvae in general, as interspecific differences in vulnerability to sound exposure may occur, they do indicate that previous assumptions and criteria may need to be revised. PMID:22431996

  8. Distribution and abundance of juvenile demersal fishes in relation to summer hypoxia and other environmental variables in coastal Oregon, USA

    NASA Astrophysics Data System (ADS)

    Sobocinski, Kathryn L.; Ciannelli, Lorenzo; Wakefield, W. Waldo; Yergey, Matthew E.; Johnson-Colegrove, Angela

    2018-05-01

    The juvenile demersal fish assemblage along the Pacific Northwest coast has received little attention relative to adult life history stages since pioneering work in the 1970s. Increasing severity of hypoxia along the Oregon coast in recent years has prompted investigations into the response of biota in this region. We used summer data (2008-2013) from a beam trawl survey targeting juvenile demersal fishes in soft-bottom habitats along the Oregon coast to describe patterns of distribution and abundance at fixed sampling stations (from 30 m to 100 m depth). We relate the assemblage and abundance of the common species to environmental variables and analyze condition of recently settled fish (<50 mm SL). Most of the captured fishes were young-of-the-year flatfishes, dominated by Butter Sole (Isopsetta isolepis), English Sole (Parophrys vetulus), Speckled Sanddab (Citharichthys stigmaeus), and Pacific Sanddab (Citharichthys sordidus). Community analysis of the full dataset showed some variation in species richness among years and high evenness across all sampling sites and years. Depth was a structuring variable for the community, indicated by multivariate nonmetric multidimensional scaling analysis. Generalized additive models for common flatfish species abundances during the summer months indicated depth preferences, with Butter Sole, English Sole, and Speckled Sanddab at shallower locations and Pacific Sanddab occurring at deeper locations farther offshore. Additionally, while most common species were collected in high abundances in hypoxic conditions, dissolved oxygen was a significant factor in determining flatfish abundance. Condition factor was weakly negatively impacted by low dissolved oxygen for the species assessed, but the strength of the relationship varied by species. Increased sampling frequency and spatial coverage would improve our understanding of this community, especially in light of changing environmental drivers such as decreasing pH, warming water

  9. Digenean metacercariae parasites as natural tags of habitat use by 0-group common sole Solea solea in nearshore coastal areas: A case study in the embayed system of the Pertuis Charentais (Bay of Biscay, France)

    NASA Astrophysics Data System (ADS)

    Durieux, Eric D. H.; Bégout, Marie-Laure; Pinet, Patrick; Sasal, Pierre

    2010-07-01

    This study focused on the spatio-temporal variation in the host-parasite system, 0-group sole-digenean metacercariae, in nearshore coastal areas at relatively small spatial scale. 0-group soles were sampled using a standard beam trawl in April, May, June, August and October 2005 at nine different sites in the Pertuis Charentais area (Bay of Biscay, France). Sole density, size, Fulton's condition factor K and digenean metacercariae communities were analysed. 0-group sole concentrated in shallow and muddy areas where they accumulated digenean metacercariae. Parasite communities displayed strong spatial patterns tightly linked to the distribution of the first intermediate mollusc hosts. These parasitological data suggest that 0-group sole during their first period of growth are mainly sedentary with limited movements between the different parts of the habitat. Size and density data revealed spatial heterogeneity in terms of habitat quality so that a limited zone (Aiguillon Bay) within the study area could be identified as sensu stricto nursery habitat for 0-group sole. The use of digenean metacercariae as natural tags appears as a novel powerful tool to evaluate habitat use and movements of juvenile flatfish, which could find applications in fisheries and coastal zone management programs.

  10. Juvenile Firesetting.

    PubMed

    Peters, Brittany; Freeman, Bradley

    2016-01-01

    Juvenile firesetting is a significant cause of morbidity and mortality in the United States. Male gender, substance use, history of maltreatment, interest in fire, and psychiatric illness are commonly reported risk factors. Interventions that have been shown to be effective in juveniles who set fires include cognitive behavior therapy and educational interventions, whereas satiation has not been shown to be an effective intervention. Forensic assessments can assist the legal community in adjudicating youth with effective interventions. Future studies should focus on consistent assessment and outcome measures to create more evidence for directing evaluation and treatment of juvenile firesetters. Copyright © 2016 Elsevier Inc. All rights reserved.

  11. Histological variations in juvenile polyp phenotype correlate with genetic defect underlying juvenile polyposis

    PubMed Central

    van Hattem, W. Arnout; Langeveld, Danielle; de Leng, Wendy W. J.; Morsink, Folkert H.; van Diest, Paul J.; Iacobuzio-Donahue, Christine A.; Giardiello, Francis M.; Offerhaus, G. Johan A.; Brosens, Lodewijk A. A.

    2011-01-01

    Background Juvenile polyps are distinct hamartomatous malformations of the gastrointestinal tract that may occur in the heritable juvenile polyposis syndrome (JPS) or sporadically. Histologically, juvenile polyps are characterised by a marked increase of the stromal cell compartment but, an epithelial phenotype has also been reported. JPS has an increased risk of colorectal cancer but sporadic juvenile polyps do not. In 50–60% of JPS patients a germline mutation of the TGF-β/BMP pathway genes SMAD4 or BMPR1A is found. This study compares the histological phenotype of juvenile polyps with a SMAD4 or BMPR1A germline mutation and sporadic juvenile polyps. Methods H&E slides of 65 JPS polyps and 25 sporadic juvenile polyps were reviewed for histological features and dysplasia. Systematic random crypt and stroma counts were obtained by count stereology and a crypt-stroma ratio was determined. All polyps were subsequently categorised as type A (crypt-stroma ratio <1.00) or type B (crypt-stroma ratio ≥1.00), the latter referring to the epithelial phenotype. Cell cycle activity was assessed using immunohistochemistry of the proliferation marker Ki67, and mutation analysis was conducted for KRAS and APC to determine the involvement of the adenoma-carcinoma sequence. Results Juvenile polyps with a SMAD4 germline mutation were predominantly type B, whereas, type A was more common among juvenile polyps with a BMPR1A germline mutation, but this distinction could not be ascribed to differences in cell cycle activity. Dysplasia was equally common in JPS polyps with either a SMAD4 or BMPR1A germline mutation, where the involvement of the adenoma-carcinoma sequence does not seem to play a distinct role. Conclusion juvenile polyps in the setting of JPS exhibit distinct phenotypes correlating with the underlying genetic defect. PMID:21412070

  12. Growth performance, body composition, and digestive functionality of Senegalese sole (Solea senegalensis Kaup, 1858) juveniles fed diets including microalgae freeze-dried biomass.

    PubMed

    Vizcaíno, A J; Rodiles, A; López, G; Sáez, M I; Herrera, M; Hachero, I; Martínez, T F; Cerón-García, M C; Alarcón, F Javier

    2018-04-01

    Senegalese sole is one of the most promising fish species cultivated in the Southern European countries. This study was aimed at assessing the effects of microalgae biomass added to diets for Senegalese sole juveniles on fish growing and condition status. Three isoproteic (52%) and isolipidic (10%) were formulated containing 15% Tisochrysis lutea (TISO), Nannochloropsis gaditana (NAN), or Scenedesmus almeriensis (SCE) biomass, respectively. An experimental microalgae-free diet (CT) and a commercial diet (COM) were used as controls. Fish were fed at 3% of their body weight for 85 days. Final body weight of fish fed microalgae-supplemented diets did not differ from group fed CT diet. Fish-fed CT, TISO, NAN, and SCE showed higher growth performance and nutrient utilization figures than specimen-fed COM diet. The highest carcass lipid content was found in COM group (141 g kg -1 ), and no differences were observed in body protein content. Ash was significantly higher in TISO, NAN, and SCE groups compared to fish-fed CT. Muscle EPA and DHA contents were not modified owing to the different dietary treatments. The n3/n6 and EPA/DHA ratios in muscle were similar in all the experimental groups. The quantification of digestive proteolytic activities did not differ among experimental groups, although differences in the protease pattern in digestive extracts by zymography were revealed in those fish fed on COM diet. Both α-amylase activity in the intestinal lumen and leucine aminopeptidase in the intestinal tissue were significantly lower in COM fish. Specimens fed on SCE diet showed a higher leucine aminopeptidase activity associated to the intestinal tissue compared to NAN-fed fish (0.40 and 0.25 U g tissue -1 , respectively). The ultrastructural study revealed that the dietary inclusion of algal biomass, especially T. lutea and N. gaditana, had a positive impact on the absorptive capacity of the intestinal mucosa. The highest values for the parameters microvilli

  13. Assessment of resource selection models to predict occurrence of five juvenile flatfish species (Pleuronectidae) over the continental shelf in the western Gulf of Alaska

    NASA Astrophysics Data System (ADS)

    Wilson, Matthew T.; Mier, Kathryn L.; Cooper, Dan W.

    2016-05-01

    According to the nursery size hypothesis, flatfish recruitment is constrained by nursery area. Thus, if resource selection models can be shown to accurately predict the location and geographic extent of flatfish nursery areas, they will become important tools in the management and study of flatfish population dynamics. We demonstrate that some resource selection models derived previously to predict the presence and absence of juvenile flatfishes near shore were applicable to the broader continental shelf. For other age-species groups, derivation of new models for the continental shelf was necessary. Our study was conducted in the western Gulf of Alaska (GoA) during October 2011 on four groups of age-0 juvenile flatfishes: Pacific halibut (Hippoglossus stenolepis), arrowtooth flounder (Atheresthes stomias), northern rock sole (Lepidopsetta polyxystra), and flathead sole (Hippoglossoides elassodon); and three groups of age-1 juvenile flatfishes: northern rock sole, flathead sole, and yellowfin sole (Limanda aspera). Sampling occurred at 33 sites across the continental shelf. Fish were collected using a 3-m beam trawl, and a midwater trawl. Environmental data were collected on sediment composition and water temperature and depth. Many of the age-species groups co-occurred in the Shumagin and Barnabus sea valleys; however, age-0 arrowtooth flounder occurred at more locations than other juveniles, perhaps due to a relatively broad tolerance of environmental conditions and to the utilization of midwater habitat. Thus, the large nursery area of arrowtooth flounder may be one reason why they are currently the most abundant GoA flatfish. In fact, among all species, mean recruitment at age 3 increased with the percent occurrence of age-0 juveniles at the 33 sites, a proxy for relative nursery area, in accordance with the nursery size hypothesis, suggesting that mean recruitment among GoA flatfishes is structured by nursery size.

  14. Inter-class competition in stage-structured populations: effects of adult density on life-history traits of adult and juvenile common lizards.

    PubMed

    San-Jose, Luis M; Peñalver-Alcázar, Miguel; Huyghe, Katleen; Breedveld, Merel C; Fitze, Patrick S

    2016-12-01

    Ecological and evolutionary processes in natural populations are largely influenced by the population's stage-structure. Commonly, different classes have different competitive abilities, e.g., due to differences in body size, suggesting that inter-class competition may be important and largely asymmetric. However, experimental evidence states that inter-class competition, which is important, is rare and restricted to marine fish. Here, we manipulated the adult density in six semi-natural populations of the European common lizard, Zootoca vivipara, while holding juvenile density constant. Adult density affected juveniles, but not adults, in line with inter-class competition. High adult density led to lower juvenile survival and growth before hibernation. In contrast, juvenile survival after hibernation was higher in populations with high adult density, pointing to relaxed inter-class competition. As a result, annual survival was not affected by adult density, showing that differences in pre- and post-hibernation survival balanced each other out. The intensity of inter-class competition affected reproduction, performance, and body size in juveniles. Path analyses unravelled direct treatment effects on early growth (pre-hibernation) and no direct treatment effects on the parameters measured after hibernation. This points to allometry of treatment-induced differences in early growth, and it suggests that inter-class competition mainly affects the early growth of the competitively inferior class and thereby their future performance and reproduction. These results are in contrast with previous findings and, together with results in marine fish, suggest that the strength and direction of density dependence may depend on the degree of inter-class competition, and thus on the availability of resources used by the competing classes.

  15. Cortisol response to waterborne 4-nonylphenol exposure leads to increased brain POMC and HSP70 mRNA expressions and reduced total antioxidant capacity in juvenile sole (Solea solea).

    PubMed

    Palermo, Francesco Alessandro; Cocci, Paolo; Nabissi, Massimo; Polzonetti-Magni, Alberta; Mosconi, Gilberto

    2012-11-01

    4-Nonylphenol (4-NP) is a breakdown product of alkylphenolpolyethoxylates and can be found in almost all environmental water matrices. 4-NP can act as environmental stressor on fish, typically causing modulation of hypothalamic-pituitary-interrenal axis (HPI). To examine the effects of the xenoestrogen 4-NP or 17β-estradiol (E2) on induction of stress response mechanisms by evaluating the levels of proopiomelanocortin (POMC) mRNA, heat shock protein 70 (HSP70) mRNA and plasma cortisol, we exposed juvenile sole (Solea solea), under static condition for 7 day, to either 10(-6) or 10(-8) M 4-NP, or 10(-8) M E2. In addition, plasma cortisol titers were correlated to the total antioxidant capacity (TAC), one of the oxidative stress parameters. 4-NP treatments resulted in high levels of POMC mRNA, HSP70 mRNA and plasma cortisol. On the contrary, E2 basically down-regulated POMC expression. Moreover, elevated cortisol levels in fish exposed to the highest dose of 4-NP were accompanied by low TAC. These results suggest that 4-NP modulates the sole HPI axis inducing a cortisol-mediated stress response. Specifically, we suggest that 4-NP affects brain POMC mRNA levels via non-estrogen receptor (ER)-mediated mechanism further supporting the ability of 4-NP to target multiple receptor systems. Copyright © 2012 Elsevier Inc. All rights reserved.

  16. Dominance behaviour in a non-aggressive flatfish, Senegalese sole (Solea senegalensis) and brain mRNA abundance of selected transcripts.

    PubMed

    Fatsini, Elvira; Rey, Sonia; Ibarra-Zatarain, Zohar; Mackenzie, Simon; Duncan, Neil J

    2017-01-01

    Dominance is defined as the preferential access to limited resources. The present study aimed to characterise dominance in a non-aggressive flatfish species, the Senegalese sole (Solea senegalensis) by 1) identifying dominance categories and associated behaviours and 2) linking dominance categories (dominant and subordinate) with the abundance of selected mRNA transcripts in the brain. Early juveniles (n = 74, 37 pairs) were subjected to a dyadic dominance test, related to feeding, and once behavioural phenotypes had been described the abundance of ten selected mRNAs related to dominance and aggressiveness was measured in the brain. Late juveniles were subjected to two dyadic dominance tests (n = 34, 17 pairs), related to feeding and territoriality and one group test (n = 24, 4 groups of 6 fish). Sole feeding first were categorized as dominant and sole feeding second or not feeding as subordinate. Three social behaviours (i. "Resting the head" on another fish, ii. "Approaching" another fish, iii. "Swimming above another" fish) were associated with dominance of feeding. Two other variables (i. Total time occupying the preferred area during the last 2 hours of the 24 h test, ii. Organisms occupying the preferred area when the test ended) were representative of dominance in the place preference test. In all tests, dominant fish compared to subordinate fish displayed a significantly higher number of the behaviours "Rest the head" and "Approaches". Moreover, dominant sole dominated the sand at the end of the test, and in the group test dominated the area close to the feed delivery point before feed was delivered. The mRNA abundance of the selected mRNAs related to neurogenesis (nrd2) and neuroplasticity (c-fos) in dominant sole compared to subordinate were significantly different. This is the first study to characterise dominance categories with associated behaviours and mRNA abundance in Senegalese sole and provides tools to study dominance related problems in feeding

  17. The distribution of life cycle stages of two deep-water pleuronectids, Dover sole ( Microstomus pacificus) and rex sole ( Glyptocephalus zachirus), at the northern extent of their range in the Gulf of Alaska

    NASA Astrophysics Data System (ADS)

    Abookire, Alisa A.; Bailey, Kevin M.

    2007-02-01

    Dover sole ( Microstomus pacificus) and rex sole ( Glyptocephalus zachirus) are both commercially valuable, long-lived pleuronectids that are distributed widely throughout the North Pacific. While their ecology and life cycle have been described for southern stocks, few investigations have focused on these species at higher latitudes. We synthesized historical research survey data among critical developmental stages to determine the distribution of life cycle stages for both species in the northern Gulf of Alaska (GOA). Bottom trawl survey data from 1953 to 2004 (25 519 trawls) were used to characterize adult distribution during the non-spawning and spawning seasons, ichthyoplankton data from 1972 to 2003 (10 776 tows) were used to determine the spatial and vertical distribution of eggs and larvae, and small-meshed shrimp trawl survey data from 1972 to 2004 (6536 trawls) were used to characterize areas utilized by immature stages. During the non-spawning season, adult Dover sole and rex sole were widely distributed from the inner shelf to outer slope. While both species concentrated on the continental slope to spawn, Dover sole spawning areas were more geographically specific than rex sole. Although spawned in deep water, eggs of both species were found in surface waters near spawning areas. Dover sole larvae did not appear to have an organized migration from offshore spawning grounds toward coastal nursery areas, and our data indicated facultative settling to their juvenile habitat in winter. Rex sole larvae progressively moved cross-shelf toward shore as they grew from April to September, and larvae presumably settled in coastal nursery areas in the autumn. In contrast with studies in the southern end of their range, we found no evidence in the GOA that Dover or rex sole have pelagic larval stages longer than nine months; however, more sampling for large larvae is needed in winter offshore of the continental shelf as well as sampling for newly settled larvae over

  18. Autosomal dominant juvenile recurrent parotitis.

    PubMed Central

    Reid, E; Douglas, F; Crow, Y; Hollman, A; Gibson, J

    1998-01-01

    Juvenile recurrent parotitis is a common cause of inflammatory salivary gland swelling in children. A variety of aetiological factors has been proposed for the condition. Here we present a family where four members had juvenile recurrent parotitis and where two other family members may have had an atypical form of the condition. The segregation pattern in the family is consistent with autosomal dominant inheritance with incomplete penetrance and this suggests that, at least in some cases, genetic factors may be implicated in juvenile recurrent parotitis. PMID:9610807

  19. Juvenile idiopathic arthritis.

    PubMed

    Boros, Christina; Whitehead, Ben

    2010-09-01

    Juvenile idiopathic arthritis is the most common rheumatic disease in childhood, occurring in approximately 1:500 children. Despite a recent expansion in treatment options and improvement of outcomes, significant morbidity still occurs. This article outlines the clinical manifestations, assessment, detection of complications, treatment options and monitoring requirements, with the aid of guidelines recently published by The Royal Australian College of General Practitioners, which provide practical support for general practitioners to ensure best practice care and to prevent lifelong disability in patients with juvenile idiopathic arthritis. General practice plays an important role in the early detection, initial management and ongoing monitoring of children with juvenile idiopathic arthritis. Early detection involves understanding the classification framework for subtypes of juvenile idiopathic arthritis, and being aware of the clinical manifestations and how to look for them, through history, examination and appropriate investigation. The major extra-articular manifestations of juvenile idiopathic arthritis are uveitis and growth disturbance. Treatment options include nonsteroidal anti-inflammatory drugs, methotrexate, biologic agents, and corticosteroids. Management using a multidisciplinary approach can prevent long term sequelae. Unfortunately, approximately 50% of children will have active disease as adults.

  20. Predictors of juveniles' noncompliance with probation requirements.

    PubMed

    NeMoyer, Amanda; Goldstein, Naomi E S; McKitten, Rhonda L; Prelic, Ana; Ebbecke, Jenna; Foster, Erika; Burkard, Casey

    2014-12-01

    Probation is the most common disposition for adjudicated youth, but little is known about which specific requirements are commonly imposed on juveniles, the requirements with which juveniles most often fail to comply, and how certain youth characteristics and/or imposed requirements might relate to probation noncompliance. An investigation of 120 archived files of youth represented by an urban public defender's office identified 29 probation requirements imposed on youth and 18 requirements with which youth commonly failed to comply. Results revealed that 52% of youth failed to comply with at least one probation requirement; prior probation noncompliance and race were both significantly associated with noncompliance in the examined probation disposition. In addition, the probability of probation noncompliance was significantly higher when youth received either of two substance-related probation requirements: drug tests or drug and alcohol counseling. Such results may prompt further investigation of juvenile probation-related predictors, identify areas of need for clinical service provision to foster successful completion of probation requirements, and help identify areas of potential biases among juvenile court personnel. PsycINFO Database Record (c) 2014 APA, all rights reserved.

  1. Epidermoid Cyst of the Sole - A Case Report

    PubMed Central

    Rajput, Santosh Singh; Gopinathan, Nayar Sajeeth

    2016-01-01

    Epidermoid cysts are common benign subcutaneous lesion also termed as epidermal cysts. Epidermoid cyst are commonly seen in hairy regions of body like scalp, face and scrotum, can be single or multiple, but rarely can occur in glabrous skin of palm and sole. They are known to result from progressive cystic ectasia of the infundibular portion of hair follicle but the pathogenesis in palmo-plantar epidermoid cyst differs that is traumatic sequestration of epidermal elements into dermis. Here, we report a case of 30-year-old female presented with complaints of swelling in her left sole. On examination a palpable firm swelling was noted just below the 2nd web space left foot plantar region, on X-ray foot no osseous lesion or foreign body was detected. Swelling was excised and sent for histopathological examination which confirmed it as epidermoid cyst. PMID:28050432

  2. Post-traumatic stress symptoms among juvenile offenders in nigeria: implications for holistic service provisioning in juvenile justice administration.

    PubMed

    Atilola, Olayinka; Omigbodun, Olayinka; Bella-Awusah, Tolulope

    2014-08-01

    There is hardly any study examining exposure to traumatic events and post-traumatic stress disorder (PTSD) among juvenile justice populations in Nigeria or any part of sub-Saharan Africa. We examined the prevalence and trauma determinants of PTSD among a cohort of juvenile justice inmates in Nigeria, compared with a cohort of school-going adolescents. Ninety percent (90%) of the juvenile justice inmates reported exposure to at least one lifetime traumatic event with higher mean incident events, compared with 60% among the comparison group (p=.001). Juvenile justice inmates had significantly higher prevalence rate of current and lifetime PTSD than the comparison group (current: 5.8% vs. 1.4%; lifetime: 9.7% vs. 2.8%, p<.05). Mean incident traumatic event was statistically significantly higher among juvenile justice inmates who had PTSD. Posttraumatic stress symptoms are common among adolescents coming in contact with the juvenile justice system. Implications for holistic service provisioning in juvenile justice administration are discussed.

  3. Movies and juvenile delinquency: an overview.

    PubMed

    Snyder, S

    1991-01-01

    Film viewing may affect the juvenile delinquent through the processes known as social learning and instigation. Identification with the movie and its characters by the delinquent viewer is common, and studies have consistently demonstrated that films can affect delinquents, although in some cases the effects are small. Numerous examples of how films may serve as either the initiator or the final common pathway of delinquent acts are presented. However, prosocial aspects of films dealing with delinquency may exert a positive influence on the juvenile delinquent. Treatment implications of these observations are discussed from social learning and other perspectives.

  4. Students with Juvenile Arthritis Participating in Recess

    ERIC Educational Resources Information Center

    Lucas, Matthew D.

    2009-01-01

    The participation of a student with juvenile arthritis in recess can often be both challenging and rewarding for the student and general education teacher. This paper will address common characteristics of students with juvenile arthritis and present basic solutions to improve the education of these students in the recess setting. Initially the…

  5. Stable isotopes in juvenile marine fishes and their invertebrate prey from the Thames Estuary, UK, and adjacent coastal regions

    NASA Astrophysics Data System (ADS)

    Leakey, Chris D. B.; Attrill, Martin J.; Jennings, Simon; Fitzsimons, Mark F.

    2008-04-01

    Estuaries are regarded as valuable nursery habitats for many commercially important marine fishes, potentially providing a thermal resource, refuge from predators and a source of abundant prey. Stable isotope analysis may be used to assess relative resource use from isotopically distinct sources. This study comprised two major components: (1) development of a spatial map and discriminant function model of stable isotope variation in selected invertebrate groups inhabiting the Thames Estuary and adjacent coastal regions; and (2) analysis of stable isotope signatures of juvenile bass ( Dicentrarchus labrax), sole ( Solea solea) and whiting ( Merlangius merlangus) for assessment of resource use and feeding strategies. The data were also used to consider anthropogenic enrichment of the estuary and potential energetic benefits of feeding in estuarine nursery habitat. Analysis of carbon (δ 13C), nitrogen (δ 15N) and sulphur (δ 34S) isotope data identified significant differences in the 'baseline' isotopic signatures between estuarine and coastal invertebrates, and discriminant function analysis allowed samples to be re-classified to estuarine and coastal regions with 98.8% accuracy. Using invertebrate signatures as source indicators, stable isotope data classified juvenile fishes to the region in which they fed. Feeding signals appear to reflect physiological (freshwater tolerance) and functional (mobility) differences between species. Juvenile sole were found to exist as two isotopically-discrete sub-populations, with no evidence of mixing between the two. An apparent energetic benefit of estuarine feeding was only found for sole.

  6. Habitat quality of the coastal southeastern Bering Sea for juvenile flatfishes from the relationships between diet, body condition and prey availability

    NASA Astrophysics Data System (ADS)

    Yeung, Cynthia; Yang, Mei-Sun

    2017-01-01

    The distribution and body condition of juvenile northern rock sole (NRS), Lepidopsetta polyxystra, and yellowfin sole (YFS), Limanda aspera, were studied in relation to prey availability across the coastal shelf at the Alaska Peninsula boundary of the eastern Bering Sea (EBS) to assess spatial variability in habitat quality. Juveniles of ≤ 20 cm and adults of ≥ 30 cm total length were collected from bottom trawl catch samples at stations located 10 to 120 km from the Alaska Peninsula coast, and in bottom depths of 28 to 85 m. Stomach contents and stable isotopes of carbon and nitrogen from muscle tissue were analyzed to describe diet composition. The quantity and quality of prey did not significantly affect the distribution of juvenile NRS and YFS. Spatial mismatch between the diet composition and the infauna prey assemblage suggested that prey availability was not limiting across the area, allowing fish to select for prey, presumably to maximize net energy gain. The body condition of juvenile NRS was higher in the eastern section of the area (Bristol Bay) - where they shared spatial and dietary niches with juvenile YFS, than in the west section (Unimak Island) where juvenile YFS were largely absent. A difference in body condition suggests that habitat quality may be higher in Bristol Bay. For NRS, stomach contents and stable isotopes in muscle tissue indicated an ontogenetic diet shift from amphipods to polychaetes from juvenile to adult stages. In contrast, for YFS, amphipods seemed to remain the primary prey and polychaetes the least important prey from juvenile to adult stage. Given that the high prey availability found in this south coastal area of EBS extends to areas across the EBS shelf, favorable habitat for juvenile flatfishes should be extensive. However, much of this potential juvenile habitat is underutilized by NRS, which were mainly limited to Bristol Bay and the Alaska Peninsula, whereas YFS did extend north over 500 km from Bristol Bay along

  7. Attending Behavior: Commonalities and Differences Among Educable Retarded, Learning Disabled, and Emotionally Handicapped Juvenile Delinquents.

    ERIC Educational Resources Information Center

    Hill, Nancy C.; And Others

    The study investigated three variables--juvenile delinquency, academic achievement, and attention span--with 77 incarcerated juveniles [18 emotionally handicapped (EH), 20 learning disabled (LD), 19 educable mentally retarded (EMR), and 20 nonidentified]. The Detroit Tests of Learning Aptitude were used for testing in the areas of visual and…

  8. Estimating Common Growth Patterns in Juvenile Chinook Salmon (Oncorhynchus tshawytscha) from Diverse Genetic Stocks and a Large Spatial Extent

    PubMed Central

    Scheuerell, Mark D.; Simenstad, Charles A.; Bottom, Daniel L.

    2016-01-01

    Life history variation in Pacific salmon (Oncorhynchus spp.) supports species resilience to natural disturbances and fishery exploitation. Within salmon species, life-history variation often manifests during freshwater and estuarine rearing, as variation in growth. To date, however, characterizing variability in growth patterns within and among individuals has been difficult via conventional sampling methods because of the inability to obtain repeated size measurements. In this study we related otolith microstructures to growth rates of individual juvenile Chinook salmon (O. tshawytscha) from the Columbia River estuary over a two-year period (2010–2012). We used dynamic factor analysis to determine whether there were common patterns in growth rates within juveniles based on their natal region, capture location habitat type, and whether they were wild or of hatchery origin. We identified up to five large-scale trends in juvenile growth rates depending on month and year of capture. We also found that hatchery fish had a narrower range of trend loadings for some capture groups, suggesting that hatchery fish do not express the same breadth of growth variability as wild fish. However, we were unable to resolve a relationship between specific growth patterns and habitat transitions. Our study exemplifies how a relatively new statistical analysis can be applied to dating or aging techniques to summarize individual variation, and characterize aspects of life history diversity. PMID:27695094

  9. Estimating Common Growth Patterns in Juvenile Chinook Salmon (Oncorhynchus tshawytscha) from Diverse Genetic Stocks and a Large Spatial Extent.

    PubMed

    Goertler, Pascale A L; Scheuerell, Mark D; Simenstad, Charles A; Bottom, Daniel L

    2016-01-01

    Life history variation in Pacific salmon (Oncorhynchus spp.) supports species resilience to natural disturbances and fishery exploitation. Within salmon species, life-history variation often manifests during freshwater and estuarine rearing, as variation in growth. To date, however, characterizing variability in growth patterns within and among individuals has been difficult via conventional sampling methods because of the inability to obtain repeated size measurements. In this study we related otolith microstructures to growth rates of individual juvenile Chinook salmon (O. tshawytscha) from the Columbia River estuary over a two-year period (2010-2012). We used dynamic factor analysis to determine whether there were common patterns in growth rates within juveniles based on their natal region, capture location habitat type, and whether they were wild or of hatchery origin. We identified up to five large-scale trends in juvenile growth rates depending on month and year of capture. We also found that hatchery fish had a narrower range of trend loadings for some capture groups, suggesting that hatchery fish do not express the same breadth of growth variability as wild fish. However, we were unable to resolve a relationship between specific growth patterns and habitat transitions. Our study exemplifies how a relatively new statistical analysis can be applied to dating or aging techniques to summarize individual variation, and characterize aspects of life history diversity.

  10. [Accuracy of three common optometry methods in examination of refraction in juveniles].

    PubMed

    Su, Ting; Min, Xiaoshan; Liu, Shuangzhen; Li, Fengyun; Tan, Xingping; Zhong, Yanni; Deng, Shaoling

    2016-02-01

    To compare the results of the three methods of Suresight handheld autorefractor, table-mounted autorefractor and retinoscopy in examination of juveniles patients with or without cycloplegia.
 Firstly, 156 eyes of 78 juveniles (5 to 17 years old) were examined by using WelchAllyn Suresight handheld autorefractor and NIDEK ARK-510A table-mounted autorefractor with or without cycloplegia; secondly, retinoscopy was performed with cycloplegia.
 The spherical power measured by methods without cycloplegia were significantly greater than those measured with cycloplegia (P<0.05); without cycloplegia, there was no significant difference in spherical power, cylindrical power and cylindrical axis between Suresight handheld autorefractor and retinoscopy (P>0.05). These results were highly consistent, suggesting a tendency towards a short sight. However, the spherical power and cylindrical power measured by table-mounted autorefractor was significantly different (P<0.05); with cycloplegia, there was significant difference in spherical power between Suresight handheld autorefractor and retinoscopy (P<0.05).
 Cycloplegic retinoscopy is necessary for juvenile refraction examination. Under natural pupil situation, Suresight handheld autorefractor is better than table-mounted autorefractor, though both show a myopia tendency. Nevertheless, table-mounted autorefractor can be taken as a recommendation for the prescription of lens trial. As a strong reference for subjective optometry, retinoscopy should be the gold standard for measuring refractive errors.

  11. Extinguishing All Hope: Life-without-Parole for Juveniles

    ERIC Educational Resources Information Center

    Butler, Frank

    2010-01-01

    Sentencing juveniles to life-without-parole (JLWOP) is a practice fraught with ethical dilemmas. Through in-depth interviews with 11 men living sentences of JLWOP, their narratives of their backgrounds and experiences as juveniles were studied. Common themes were identified, and 3 general categories of cases emerged from the narratives. Ethical…

  12. Spatial analysis of the trophic interactions between two juvenile fish species and their preys along a coastal-estuarine gradient

    NASA Astrophysics Data System (ADS)

    Kopp, Dorothée; Le Bris, Hervé; Grimaud, Lucille; Nérot, Caroline; Brind'Amour, Anik

    2013-08-01

    Coastal and estuarine systems provide nursery grounds for many marine fish species. Their productivity has been correlated with terrigeneous inputs entering the coastal-estuarine benthic food web, thereby favouring the establishment of fish juveniles. Studies in these ecosystems often describe the nursery as a single large habitat without verifying nor considering the presence of contiguous habitats. Our study aimed at identifying different habitats based on macrozoobenthic communities and morpho-sedimentary characteristics and assessing the trophic interactions between fish juveniles and their benthic preys within these habitats. It included 43 sampling sites covering 5 habitats in which we described taxonomically and quantitatively the invertebrates and fish communities with stable isotopes and gut contents. It suggested that the benthic common sole Solea solea displayed feeding plasticity at the population level, separating the juveniles (G0) from the older fish (G1) into different "feeding sub-populations". Size-based feeding plasticity was also observable in the spatial occupancy of that species in the studied bay. The demersal pouting, Trisopterus luscus, equally used the different habitats but displayed low feeding plasticity across and inside each habitat. Stable isotopes proved to be powerful tools to study the spatial distribution of trophic interactions in complex ecosystems like the bay of Vilaine and to define optimal habitats for fish that use the coastal-estuarine ecosystem as nursery grounds.

  13. [Three good reasons to perform a postmortem examination in all cases of juvenile sudden death].

    PubMed

    d'Amati, Giulia; di Gioia, Cira R T; Silenzi, Paola F; Gallo, Pietro

    2009-04-01

    The aim of this review is to underline the reasons why a post-mortem examination has to be performed in all cases of juvenile sudden death. Sudden death in children and young adults can be caused by potentially heritable cardiovascular disorders and fatal outcome is often the first symptom in apparently healthy subjects. In these cases, a careful autopsy, performed according to a standardized protocol, becomes the sole diagnostic tool to guide clinical and molecular genetic family screening and to adopt the proper therapeutic and preventive strategies. Thus, a post-mortem examination is a fundamental part of a multidisciplinary approach to the issue of juvenile sudden death.

  14. Child Welfare and Juvenile Justice: Federal Agencies Could Play a Stronger Role in Helping States Reduce the Number of Children Placed Solely To Obtain Mental Health Services.

    ERIC Educational Resources Information Center

    General Accounting Office, Washington, DC.

    Child welfare directors in 19 states and juvenile justice officials in 30 counties estimated that in fiscal year 2001 parents placed over 12,700 children into the child welfare or juvenile justice systems so that these children could receive mental health services. Neither the child welfare nor the juvenile justice system was designed to serve…

  15. SEASONAL VARIATION IN PLASMA SEX STEROID CONCENTRATION IN JUVENILE ALLIGATORS

    EPA Science Inventory

    Seasonal variation in plasma sex steroid concentrations is common in mature vertebrates, and is occasionally seen in juvenile animals. In this study, we examine the seasonal pattern of sex hormone concentration in juvenile American alligators (Alligator mississippiensis) and make...

  16. Antibodies in juvenile-onset myositis.

    PubMed

    Tansley, Sarah L

    2016-11-01

    Juvenile-onset myositis is a highly heterogeneous disease. Myositis-specific and associated autoantibodies provide a potential means of subdividing patients into clinically homogenous subgroups. Given the increasing availability of autoantibody testing, this review explores the phenotypes associated with different autoantibodies in juvenile-onset myositis and the potential clinical utility of autoantibody testing. Autoantibodies can be identified in 60-70% of children with myositis and the recent discovery of novel myositis-associated autoantibodies in adult patients suggests this may increase in the near future. Detailed phenotype descriptions are now known for several autoantibodies commonly identified in juvenile-onset disease. Whilst there is insufficient evidence to recommend a differential treatment approach based on autoantibody status, it is becoming increasingly clear that some autoantibody subgroups are often treatment resistant and may benefit from a more aggressive approach. The validation of nonspecialised methods for myositis-specific autoantibody detection should lead to more widely available testing. In juvenile-onset disease, this will provide detailed prognostic information and in the future may also influence approach.

  17. Movies and Juvenile Delinquency: An Overview.

    ERIC Educational Resources Information Center

    Snyder, Scott

    1991-01-01

    Notes that film viewing may affect juvenile delinquent through social learning and instigation; identification with movie and movie characters by delinquents is common. Presents examples of how films may serve as initiator or final common pathway of delinquent acts. Adds that prosocial aspects of films dealing with delinquency may exert positive…

  18. Male Juveniles with Sexual Behavior Problems: Are There Differences among Racial Groups?

    ERIC Educational Resources Information Center

    Ikomi, Philip A.; Rodney, H. Elaine; McCoy, Tana

    2009-01-01

    This study used archival data on a sample of 186,492 referrals from a southwestern state Juvenile Probation Commission to compare the characteristics of 5,439 male Black, Hispanic, and White juveniles with sexual behavior problems on the five most common sexual offenses in the data set. The characteristics of 181,053 juveniles of the three races…

  19. 77 FR 41332 - Fisheries of the Exclusive Economic Zone Off Alaska; Arrowtooth Flounder, Flathead Sole, Rex Sole...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-13

    ...NMFS is prohibiting directed fishing for arrowtooth flounder, flathead sole, rex sole, deep-water flatfish, and shallow-water flatfish in the Western Regulatory Area of the Gulf of Alaska (GOA). This action is necessary to limit incidental catch of Pacific ocean perch by vessels fishing for arrowtooth flounder, flathead sole, rex sole, deep-water flatfish, and shallow-water flatfish in the Western Regulatory Area of the GOA.

  20. Juvenile Justice in Maryland.

    ERIC Educational Resources Information Center

    Vetter, Donald P.; Frederick, Charles

    This four part guide provides secondary students with information about Maryland laws, courts, and legal system. The first section examines the nature and causes of increasing involvement of youth in crime, and identifies those crimes most commonly committed by juveniles. A special section on shoplifting is included. Section II examines the nature…

  1. Effects of starving and re-feeding strategies on the growth performance and physiological characteristics of the juvenile tongue sole ( Cynoglossus semilaevis)

    NASA Astrophysics Data System (ADS)

    Fang, Ziheng; Tian, Xiangli; Dong, Shuanglin

    2017-06-01

    Starving and re-feeding trials were conducted to evaluate the effects of starvation duration and recovery times on the growth performance and physiological characteristics of juvenile tongue sole Cynoglossus semilaevis, which included growth, body composition, intestinal morphology and digestive enzymes activities. The fish starved for one (D1), two (D2) and four (D4) days, respectively, were recovered for three (R3, R6, R12), seven (R7, R14, R28) and eleven (R11, R22, R44) folds of starvation days while the control fish were fed constantly. The experiment was conducted for 96 days. The fish individuals in D1R11, D2R14 and D2R22 caught up in weight with the control, indicating that complete compensatory growth existed in these fish individuals. The highest body weight gain and total specific growth rates were observed in D2R22. Food intake increased significantly in most treatments in comparison with that of the control except for D1R7 and D2R22 ( P < 0.05). Food conversion efficiency and apparent digest coefficient in D2R22 were significantly promoted, being higher than that of the control ( P < 0.05). The activities of trypsin and lipase were found to be closely related to the growth performance. The activities of liver and hindgut trypsin, also midgut and hindgut lipase in D2R22 were significantly higher than those of the control ( P < 0.05). The fold height (HF) of foregut and midgut increased significantly in D2R22, and HF decreased significantly in D1R3, D2R6 and D4R12 ( P < 0.05). On our findings, we may conclude that the optimum starving and re-feeding strategy is starving for 2 days and re-feeding for 22 days. And in this starving and re-feeding strategy, the compensatory growth could be mostly attributed to the promotion of food conversion efficiency and digestibility coefficiency.

  2. Juvenile Macular Degenerations

    PubMed Central

    Altschwager, Pablo; Ambrosio, Lucia; Swanson, Emily A.; Moskowitz, Anne; Fulton, Anne B.

    2017-01-01

    In this paper we review three common juvenile macular degenerations: Stargardt disease, X-linked retinoschisis, and Best vitelliform macular dystrophy. These are inherited disorders that typically present during childhood, when vision is still developing. They are sufficiently common that they should be included in the differential diagnosis of visual loss in pediatric patients. Diagnosis is secured by a combination of clinical findings, optical coherence tomography (OCT) imaging, and genetic testing. Early diagnosis promotes optimal management. While there is currently no definitive cure for these conditions, therapeutic modalities under investigation include pharmacologic treatment, gene therapy, and stem cell transplantation. PMID:28941524

  3. Juveniles in court.

    PubMed

    Soulier, Matthew F; Scott, Charles L

    2010-01-01

    Nineteenth-century American reformers were concerned about the influence of immaturity and development in juvenile offenses. They responded to their delinquent youths through the creation of juvenile courts. This early American juvenile justice system sought to treat children as different from adults and to rehabilitate wayward youths through the state's assumption of a parental role. Although these rehabilitative goals were never fully realized, the field of American child psychiatry was spawned from these efforts on behalf of delinquent youths. Early child psychiatrists began by caring for juvenile offenders. The function of a child psychiatrist with juvenile delinquents expanded beyond strictly rehabilitation, however, as juvenile courts evolved to resemble criminal adult courts-due to landmark Supreme Court decisions and also juvenile legislation between 1966 and 1975. In response to dramatically increased juvenile violence and delinquency rates in the 1980s, juvenile justice became more retributional, and society was forced to confront issues such as capital punishment for juveniles, their transfer to adult courts, and their competency to stand trial. In the modern juvenile court, child psychiatrists are often asked to participate in the consideration of such issues because of their expertise in development. In that context we review the role of psychiatrists in assisting juvenile courts.

  4. Sentencing convicted juvenile felony offenders in the adult court: the direct effects of race.

    PubMed

    Howell, Rebecca J; Hutto, Tonya Spicer

    2012-01-01

    While research indicates that Black and Hispanic adults sentenced in the criminal court tend to be rendered more severe punishments than their White counterparts, only one prior study has examined whether this finding holds for juveniles tried in the adult system. The findings from this sole study need replication, however, since the effects posed by trial type were not taken into account and it is likely that the results are confounded by measurement error resulting from overlap in criminal sentencing. The current study addressed these issues by assessing whether race has a direct impact on waived juveniles being criminally sentenced to restitution, probation, or jail. Data were derived from a secondary, cross-sectional national dataset on felony juvenile offenders convicted in the adult system. Three hypotheses were tested. After controlling for a number of important legal and extra-legal predictors of sentencing, race differences in sentencing outcomes were observed and the findings yielded partial support for the hypotheses. The implications of the research are noted. Copyright © 2012 John Wiley & Sons, Ltd.

  5. Changes in plasma osmolality, cortisol and amino acid levels of tongue sole ( Cynoglossus semilaevis) at different salinities

    NASA Astrophysics Data System (ADS)

    Wang, Guodong; Xu, Kefeng; Tian, Xiangli; Dong, Shuanglin; Fang, Ziheng

    2015-10-01

    A serial of salinity transferring treatments were performed to investigate the osmoregulation of tongue sole ( Cynoglossus semilaevis). Juvenile tongue sole were directly transferred from a salinity of 30 to 0, 10, 20, 30, 40 and 50. Blood sampling was performed for each treatment after 0, 1, 6 and 12 h, as well as after 1, 2, 4, 8, 16 and 32 d. The plasma osmolality, cortisol and free amino acids were assessed. Under the experimental conditions, no fish died after acute salinity transfer. The plasma cortisol level increased 1 h after the abrupt transfer from a salinity of 30 to that of 0, 40 and 50, and decreased from 6 h to 8 d after transfer. Similar trends were observed in the changes of plasma osmolality. The plasma free amino acids concentration showed a `U-shaped' relationship with salinity after being transferred to different salinities for 4 days. More obvious changes of plasma free amino acid concentration occurred under hyper-osmotic conditions than under hypo-osmotic conditions. The concentrations of valine, isoleucine, lysine, glutamic acid, glycine, proline and taurine increased with rising salinity. The plasma levels of threonine, leucine, arginine, serine, and alanine showed a `U-shaped' relationship with salinity. The results of this study suggested that free amino acids might have important effects on osmotic acclimation in tongue sole.

  6. Sole: Online Analysis of Southern FIA Data

    Treesearch

    Michael P. Spinney; Paul C. Van Deusen; Francis A. Roesch

    2006-01-01

    The Southern On Line Estimator (SOLE) is a flexible modular software program for analyzing U.S. Department of Agriculture Forest Service Forest Inventory and Analysis data. SOLE produces statistical tables, figures, maps, and portable document format reports based on user selected area and variables. SOLE?s Java-based graphical user interface is easy to use, and its R-...

  7. Juvenile Idiopathic Arthritis

    MedlinePlus

    ... Is Juvenile Idiopathic Arthritis the same as Juvenile Rheumatoid Arthritis? Yes, Juvenile Idiopathic Arthritis (JIA) is a new ... of chronic inflammatory diseases that affect children. Juvenile Rheumatoid Arthritis (JRA) is the older term that was used ...

  8. Juvenile crime and criminal justice: resolving border disputes.

    PubMed

    Fagan, Jeffrey

    2008-01-01

    Rising juvenile crime rates during the 1970s and 1980s spurred state legislatures across the country to exclude or transfer a significant share of offenders under the age of eighteen to the jurisdiction of the criminal court, essentially redrawing the boundary between the juvenile and adult justice systems. Jeffrey Fagan examines the legal architecture of the new boundary-drawing regime and how effective it has been in reducing crime. The juvenile court, Fagan emphasizes, has always had the power to transfer juveniles to the criminal court. Transfer decisions were made individually by judges who weighed the competing interests of public safety and the possibility of rehabilitating young offenders. This authority has now been usurped by legislators and prosecutors. The recent changes in state law have moved large numbers of juveniles into the adult system. As many as 25 percent of all juvenile offenders younger than eighteen, says Fagan, are now prosecuted in adult court. Many live in states where the age boundary between juvenile and criminal court has been lowered to sixteen or seventeen. The key policy question is: do these new transfer laws reduce crime? In examining the research evidence, Fagan finds that rates of juvenile offending are not lower in states where it is relatively more common to try adolescents as adults. Likewise, juveniles who have been tried as adults are no less likely to re-offend than their counterparts who have been tried as juveniles. Treating juveniles as adult criminals, Fagan concludes, is not effective as a means of crime control. Fagan argues that the proliferation of transfer regimes over the past several decades calls into question the very rationale for a juvenile court. Transferring adolescent offenders to the criminal court exposes them to harsh and sometimes toxic forms of punishment that have the perverse effect of increasing criminal activity. The accumulating evidence on transfer, the recent decrease in serious juvenile

  9. Radiographic anatomy of juvenile bovine limbs.

    PubMed

    Hoey, S E; Biedrzycki, A H; Livesey, M J; Drees, R

    2016-11-26

    Juvenile bovine patients who present with clinical signs of lameness are commonly evaluated using radiographic techniques both within a hospital setting and in a farm environment. The radiographic development of the juvenile bovine skeleton is currently poorly documented. In this study, the limbs of four heifer calves were sequentially radiographed to assess development of the juvenile bovine appendicular skeleton in the first 12 months of life. Images were acquired at three weeks, three months, six months, nine months and one year of age. The normal radiographic anatomy of the fore limbs and hindlimbs and the changes over the first 12 months are described. The majority of physes remain open throughout this period, with the exception of the proximal physes of the proximal and middle phalanges, the proximal radial physis, and the proximal humeral physis which close radiographically between 9 months and 12 months of age, and fusion of the fourth and central tarsal bones occurs between 9 months and 12 months of age. The results of this study may aid in differentiating normal and abnormal anatomy in the juvenile bovine limb. British Veterinary Association.

  10. Juvenile Macular Degenerations.

    PubMed

    Altschwager, Pablo; Ambrosio, Lucia; Swanson, Emily A; Moskowitz, Anne; Fulton, Anne B

    2017-05-01

    In this article, we review the following 3 common juvenile macular degenerations: Stargardt disease, X-linked retinoschisis, and Best vitelliform macular dystrophy. These are inherited disorders that typically present during childhood, when vision is still developing. They are sufficiently common that they should be included in the differential diagnosis of visual loss in pediatric patients. Diagnosis is secured by a combination of clinical findings, optical coherence tomography imaging, and genetic testing. Early diagnosis promotes optimal management. Although there is currently no definitive cure for these conditions, therapeutic modalities under investigation include pharmacologic treatment, gene therapy, and stem cell transplantation. Copyright © 2017 Elsevier Inc. All rights reserved.

  11. Acclimation temperature alters the relationship between growth and swimming performance among juvenile common carp (Cyprinus carpio).

    PubMed

    Pang, Xu; Fu, Shi-Jian; Zhang, Yao-Guang

    2016-09-01

    Individual variation in growth, metabolism and swimming performance, their possible interrelationships, and the effects of temperature were investigated in 30 juvenile common carp (Cyprinus carpio) at two acclimation temperatures (15 and 25°C). We measured body mass, critical swimming speed (Ucrit), resting metabolic rate (RMR), active metabolic rate (AMR) and metabolic scope (MS) twice (28days apart) in both temperature groups. Fish acclimated to 25°C showed a 204% higher specific growth rate (SGR) than those acclimated to 15°C due to a 97% higher feeding rate (FR) and a 46% higher feed efficiency (FE). Among individuals, SGR was positively correlated with the FR and FE at both low and high temperatures. All measured variables (Ucrit, RMR and AMR) related to swimming except MS showed a high repeatability after adjusting for body mass (mass-independent). Fish acclimated to 25°C had a 40% higher Ucrit compared with 15°C acclimated fish, which was at least partially due to an improved metabolic capacity. AMR showed a 97% increase, and MS showed a 104% parallel increase with the higher acclimation temperature. Residual (mass-independent) Ucrit was positively correlated with residual RMR, AMR and MS, except for the residual RMR at high temperature. When acclimated to the lower temperature, both the residual and absolute Ucrit were negatively correlated with FR and FE and, hence, with SGR, suggesting a functional trade-off between growth and locomotion in fish acclimated to low temperatures. However, when acclimated to the higher temperature, this trade-off no longer existed; absolute Ucrit was positively correlated with SGR because individuals with rapid growth exhibited greatly increased body mass. The higher metabolic capacity at 25°C showed a positive effect on both swimming performance and growth rate (because of improved digestive efficiency) under the high-temperature condition, which we did not anticipate. Overall, these results indicate that temperature

  12. 75 FR 31321 - Fisheries of the Exclusive Economic Zone Off Alaska; Rock Sole, Flathead Sole, and “Other...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-03

    .... 0910131363-0087-02] RIN 0648-XW74 Fisheries of the Exclusive Economic Zone Off Alaska; Rock Sole, Flathead... participating in the Amendment 80 limited access fishery in the Bering Sea and Aleutian Islands management area... the trawl rock sole, flathead sole, and ``other flatfish'' fishery category by vessels participating...

  13. [Cerebellar, pulmonary and cutaneous localizations of juvenile xanthogranuloma].

    PubMed

    Cauro, F; Houtteville, J P; Mesnil, J L; Guarnieri, J

    2002-03-01

    Juvenile xanthogranuloma is one of the most common non-langerhan cell histiocytoses in children. Usually cutaneous, there are disseminated forms. However, neurological localizations remain exceptional. We report the case of a cerebellar localization, associated with cutaneous and pulmonary lesions in a 13-month old child. Surgical treatment of the cerebellar lesion was associated with vinblastin chemotherapy, that led to total regression of the cutaneous and pulmonary lesions, neurological stabilization, without recurrence on the control IRM, after a period of 7 years. This is the second reported case of histologically documented cerebellar juvenile xanthogranuloma. In the event of cutaneous juvenile xanthogranuloma, the neurological examination must be attentive and supplemented, in case of any suspicion, by medical imaging. We believe that surgical treatment of neurological juvenile xanthogranuloma is necessary, in the event of symptomatic lesions and accessible to surgery. No consensus has been reached on subsequent treatments (radiotherapy, chemotherapy) and must be discussed according to the clinical profile and data in the literature.

  14. EPA Region 1 Sole Source Aquifers

    EPA Pesticide Factsheets

    This coverage contains boundaries of EPA-approved sole source aquifers. Sole source aquifers are defined as an aquifer designated as the sole or principal source of drinking water for a given aquifer service area; that is, an aquifer which is needed to supply 50% or more of the drinking water for the area and for which there are no reasonable alternative sources should the aquifer become contaminated.The aquifers were defined by a EPA hydrogeologist. Aquifer boundaries were then drafted by EPA onto 1:24000 USGS quadrangles. For the coastal sole source aquifers the shoreline as it appeared on the quadrangle was used as a boundary. Delineated boundaries were then digitized into ARC/INFO.

  15. A new mass mortality of juvenile Protoceratops and size-segregated aggregation behaviour in juvenile non-avian dinosaurs.

    PubMed

    Hone, David W E; Farke, Andrew A; Watabe, Mahito; Shigeru, Suzuki; Tsogtbaatar, Khishigjav

    2014-01-01

    Monodominant bonebeds are a relatively common occurrence for non-avian dinosaurs, and have been used to infer associative, and potentially genuinely social, behavior. Previously known assemblages are characterized as either mixed size-classes (juvenile and adult-sized specimens together) or single size-classes of individuals (only juveniles or only adult-sized individuals within the assemblage). In the latter case, it is generally unknown if these kinds of size-segregated aggregations characterize only a particular size stage or represent aggregations that happened at all size stages. Ceratopsians ("horned dinosaurs") are known from both types of assemblages. Here we describe a new specimen of the ceratopsian dinosaur Protoceratops andrewsi, Granger and Gregory 1923 from Mongolia representing an aggregation of four mid-sized juvenile animals. In conjunction with existing specimens of groups of P. andrewsi that includes size-clustered aggregations of young juveniles and adult-sized specimens, this new material provides evidence for some degree of size-clustered aggregation behaviour in Protoceratops throughout ontogeny. This continuity of size-segregated (and presumably age-clustered) aggregation is previously undocumented in non-avian dinosaurs. The juvenile group fills a key gap in the available information on aggregations in younger ceratopsians. Although we support the general hypothesis that many non-avian dinosaurs were gregarious and even social animals, we caution that evidence for sociality has been overstated and advocate a more conservative interpretation of some data of 'sociality' in dinosaurs.

  16. A New Mass Mortality of Juvenile Protoceratops and Size-Segregated Aggregation Behaviour in Juvenile Non-Avian Dinosaurs

    PubMed Central

    Hone, David W. E.; Farke, Andrew A.; Watabe, Mahito; Shigeru, Suzuki; Tsogtbaatar, Khishigjav

    2014-01-01

    Background Monodominant bonebeds are a relatively common occurrence for non-avian dinosaurs, and have been used to infer associative, and potentially genuinely social, behavior. Previously known assemblages are characterized as either mixed size-classes (juvenile and adult-sized specimens together) or single size-classes of individuals (only juveniles or only adult-sized individuals within the assemblage). In the latter case, it is generally unknown if these kinds of size-segregated aggregations characterize only a particular size stage or represent aggregations that happened at all size stages. Ceratopsians (“horned dinosaurs”) are known from both types of assemblages. Methods/Principal Findings Here we describe a new specimen of the ceratopsian dinosaur Protoceratops andrewsi, Granger and Gregory 1923 from Mongolia representing an aggregation of four mid-sized juvenile animals. In conjunction with existing specimens of groups of P. andrewsi that includes size-clustered aggregations of young juveniles and adult-sized specimens, this new material provides evidence for some degree of size-clustered aggregation behaviour in Protoceratops throughout ontogeny. This continuity of size-segregated (and presumably age-clustered) aggregation is previously undocumented in non-avian dinosaurs. Conclusions The juvenile group fills a key gap in the available information on aggregations in younger ceratopsians. Although we support the general hypothesis that many non-avian dinosaurs were gregarious and even social animals, we caution that evidence for sociality has been overstated and advocate a more conservative interpretation of some data of ‘sociality’ in dinosaurs. PMID:25426957

  17. Juvenile Arrests, 2000. Juvenile Justice Bulletin.

    ERIC Educational Resources Information Center

    Snyder, Howard N.

    This bulletin examines the national and state juvenile arrest rate in 2000 using data reported annually by local law enforcement agencies nationwide to the FBI's Uniform Crime Reporting program. Results indicate that the murder rate in 2000 was the lowest since 1965; juvenile arrests for violence in 2000 were the lowest since 1988; few juveniles…

  18. Juvenile Justice in Milwaukee

    ERIC Educational Resources Information Center

    Williams, Gary L.; Greer, Lanetta

    2010-01-01

    Historically, there have been several attempts made to address issues surrounding juvenile delinquency. The Wisconsin Legislature outlines the objectives of the juvenile justice system in the Juvenile Justice Code in s. 939.01, ?to promote a juvenile justice system capable of dealing with the problem of juvenile delinquency, a system which will…

  19. Behavior and dam passage of juvenile Chinook salmon and juvenile steelhead at Detroit Reservoir and Dam, Oregon, March 2012-February 2013

    USGS Publications Warehouse

    Beeman, John W.; Hansel, Hal C.; Hansen, Amy C.; Evans, Scott D.; Haner, Philip V.; Hatton, Tyson W.; Kofoot, Eric E.; Sprando, Jamie M.; Smith, Collin D.

    2014-01-01

    The in-reservoir movements and dam passage of individual juvenile Chinook salmon (Oncorhynchus tshawytscha) and juvenile steelhead (Oncorhynchus mykiss) were studied at Detroit Reservoir and Dam, near Detroit, Oregon, during 2012 and 2013. The goal of the study was to provide data to inform decisions about future downstream passage alternatives and factors affecting downstream passage rates with the existing dam configuration. In 2012, 468 juvenile Chinook salmon and 200 juvenile steelhead were tagged and released during a 3-month period in the spring, and another 514 juvenile Chinook salmon were tagged and released during a 3-month period in the fall. The fish were surgically implanted with a small acoustic transmitter with an expected life of about 3 months and a passive integrated transponder tag with an indefinite life, and were released into the two main tributaries several kilometers upstream of the reservoir. Juvenile Chinook salmon migrated from the release sites to the reservoir in a greater proportion than juvenile steelhead, but once in the reservoir, juvenile steelhead migrated to the forebay faster and had a higher dam passage rate than juvenile Chinook salmon. The routes available for passing water and fish varied throughout the year, with low reservoir elevations in winter and high reservoir elevations in summer in accordance with the flood-control purpose of the dam. Most dam passage was through the spillway during the spring and summer, when the reservoir elevation was high and the spillway and powerhouse were the most common routes in operation, and via the powerhouse during the fall and winter period, when the reservoir elevation was low and the regulating outlet and powerhouse were the most common routes in operation. Few tagged fish passed when the powerhouse was the only route in operation. Dam passage rates during the spring and summer were greatest at night, increased with dam discharge, and were greater when water was passed freely over the

  20. Effect of exposure to petroleum hydrocarbons upon cardio-respiratory function in the common sole (Solea solea).

    PubMed

    Claireaux, Guy; Davoodi, Fariba

    2010-06-10

    The long term consequences of oil exposure upon marine populations are still poorly evaluated. One particular missing piece of information relates to the link between oil exposure, individuals' ability to face environmental contingencies and populations' production and dynamics. In that context, the present paper investigates the impact of oil exposure upon fish cardio-respiratory performance, this performance being viewed as a key determinant of individual fitness. Experimental conditions replicated the contamination conditions observed during the weeks that immediately followed the Erika oil spill (west coast of France; December 1999). Sole (Solea solea), were exposed to number-2 oil for 5 days and were then challenged with an acute rise in temperature (from 15 to 30 degrees C at 1.5 degrees Ch(-1)). Oxygen consumption, cardiac output, heart rate and stroke volume were monitored throughout. Experimental results showed that compared to uncontaminated control animals, oil-exposed sole displayed impaired cardio-respiratory responses and were unable to meet the temperature-driven increase in tissues oxygen demand. The relationship between oxygen consumption and cardiac output indicated that oil-exposed fish had recourse to venous oxygen stores very early in the thermal challenge (20 degrees C). In control fish there was no evidence for depletion of venous oxygen store until above 25 degrees C.

  1. Juvenile Arrests, 1999. Juvenile Justice Bulletin.

    ERIC Educational Resources Information Center

    Snyder, Howard N.

    This bulletin presents a summary and analysis of national and state juvenile arrest data for 1999. Data come from the FBI's annual "Crime in the United States" report, which offers the estimated number of crimes reported to law enforcement agencies. The 1999 murder rate was the lowest since 1966. Of the nearly 1,800 juveniles murdered in…

  2. Juvenile Arrests, 2007. Juvenile Justice Bulletin

    ERIC Educational Resources Information Center

    Puzzanchera, Charles

    2009-01-01

    This Bulletin summarizes 2007 juvenile crime and arrest data reported by local law enforcement agencies across the country and cited in the FBI report, "Crime in the United States 2007." The Bulletin describes the extent and nature of juvenile crime that comes to the attention of the justice system. It serves as a baseline for comparison for…

  3. Minorities in the Juvenile Justice System. 1999 National Report Series. Juvenile Justice Bulletin.

    ERIC Educational Resources Information Center

    Department of Justice, Washington, DC. Office of Juvenile Justice and Delinquency Prevention.

    This report provides data on minorities in the juvenile justice system. Minority juveniles are significantly over-represented in the juvenile justice system. In 1997, minorities made up about one-third of the juvenile population nationwide but accounted for nearly two-thirds of the detained and committed population in secure juvenile facilities.…

  4. Juvenile Arrests 1996. Juvenile Justice Bulletin.

    ERIC Educational Resources Information Center

    Snyder, Howard N.

    In 1996, law enforcement agencies in the United States made an estimated 2.9 million arrests of persons under the age of 18. According to Federal Bureau of Investigation (FBI) figures, juveniles accounted for 19% of all arrests and 19% of all violent crime in 1996. The substantial growth in juvenile crime that began in the late 1980s peaked in…

  5. X-linked juvenile retinoschisis (XLRS): a review of genotype-phenotype relationships.

    PubMed

    Kim, David Y; Mukai, Shizuo

    2013-01-01

    X-linked juvenile retinoschisis (XLRS) is one of the most common genetic causes of juvenile progressive retinal-vitreal degeneration in males. To date, more than 196 different mutations of the RS1 gene have been associated with XLRS. The mutation spectrum is large and the phenotype variable. This review will focus on the clinical features of XLRS and examine the relationship between phenotype and genotype.

  6. Psychopathology and personality in juvenile sexual homicide offenders.

    PubMed

    Myers, W C; Blashfield, R

    1997-01-01

    This project describes the psychopathology and personality findings in 14 juveniles who committed sexual homicide. These incarcerated youth were assessed using a structured interview, a personality assessment instrument, correctional files review, and an author-designed clinical interview. Nearly all of these youth met DSM-III-R conduct disorder criteria at the time of the crime. The presence of personality disorders and moderately high psychopathy scores at follow-up were common. Two-thirds of these youth reported the presence of violent sexual fantasies before their crimes. Weapons, most often knives, were used by these juvenile sexual murderers to kill known victims in a majority of the cases. They usually acted alone and selected a low risk victim. These findings suggest that juvenile sexual murderers are an emotionally and behaviorally disturbed population with identifiable psychopathology, personality disturbances, and criminal patterns.

  7. Are antipredator behaviours of hatchery Salmo salar juveniles similar to wild juveniles?

    PubMed

    Salvanes, A G V

    2017-05-01

    This study explores how antipredator behaviour of juvenile Atlantic salmon Salmo salar developed during conventional hatchery rearing of eggs from wild brood stock, compared with the behaviour of wild-caught juveniles from the same population. Juveniles aged 1+ years were tested in two unfamiliar environments; in one S. salar were presented with simulated predator attacks and in the other they were given the opportunity to explore an open-field arena. No difference was found in their spontaneous escape responses or ventilation rate (reflex responses) after simulated predator attacks. Hatchery-reared juveniles were more risk-prone in their behaviours than wild-caught individuals. Hatchery juveniles stayed less time in association with shelter. In the open-field arena, hatchery juveniles were more active than wild juveniles. Hatchery juveniles were also immobile for less time and spent a shorter amount of time than wild juveniles in the fringe of the open-field arena. Salmo salar size had no effect on the observed behaviour. Overall, this study provides empirical evidence that one generation of hatchery rearing does not change reflex responses associated with threats, whereas antipredator behaviour, typically associated with prior experience, was less developed in hatchery-reared than in wild individuals. © 2017 The Fisheries Society of the British Isles.

  8. Juvenile-adult habitat shift in permian fossil reptiles and amphibians.

    PubMed

    Bakker, R T

    1982-07-02

    Among extant large reptiles, juveniles often occupy different habitats from those of adults or subadults and thus avoid competition with and predation from the older animals; small juveniles often choose cryptic habitats because they are vulnerable to a wide variety of predators. Evidence from fossil humeri and femora of Early Permian reptiles collected from sediments of several distinct habitats indicate that similar shifts in habitat occurred. Juvenile Dimetrodon seem to have favored cryptic habitats around swamp and swampy lake margins; adults favored open habitats on the floodplains. Similar patterns of habitat shift seem to be present in the reptile Ophiacodon and the amphibian Eryops and may have been common in fossil tetrapods of the Permian-Triassic.

  9. Mental Health and the Juvenile Justice System: Issues Related to Treatment and Rehabilitation

    ERIC Educational Resources Information Center

    Hovey, Katrina A.; Zolkoski, Staci M.; Bullock, Lyndal M.

    2017-01-01

    Children and youth with mental health issues and learning difficulties are common in the juvenile justice system and finding ways to effectively rehabilitate, treat, and educate them is complicated, yet imperative. In this article, we examine the prevalence rates of mental health disorders in youth involved in the juvenile justice system, discuss…

  10. Juvenile Arthritis

    MedlinePlus

    ... Keep me signed in Passwords are Case Sensitive. Ex. Enter smith as follows: Smith Forgot Username/Password? ... Erythematosus (Juvenile) Takayasu's Arteritis Tendinitis & Bursitis Tumor Necrosis Factor Receptor Associated Periodic Syndrome (Juvenile) Vasculitis Enfermedades y ...

  11. Dermatomyositis (Juvenile)

    MedlinePlus

    ... Keep me signed in Passwords are Case Sensitive. Ex. Enter smith as follows: Smith Forgot Username/Password? ... Erythematosus (Juvenile) Takayasu's Arteritis Tendinitis & Bursitis Tumor Necrosis Factor Receptor Associated Periodic Syndrome (Juvenile) Vasculitis Enfermedades y ...

  12. Juvenile Justice & Youth Violence.

    ERIC Educational Resources Information Center

    Howell, James C.

    Youth violence and the juvenile justice system in the United States are explored. Part 1 takes stock of the situation. The first chapter discusses the origins and evaluation of the juvenile justice system, and the second considers the contributions of the Federal Juvenile Justice and Delinquency Prevention Act to the existing juvenile justice…

  13. Experimental manipulation reveals few subclinical impacts of a parasite community in juvenile kangaroos

    PubMed Central

    Cripps, Jemma; Beveridge, Ian; Ploeg, Richard; Coulson, Graeme

    2014-01-01

    Large mammalian herbivores are commonly infected with gastrointestinal helminths. In many host species, these helminths cause clinical disease and may trigger conspicuous mortality events. However, they may also have subclinical impacts, reducing fitness as well as causing complex changes to host growth patterns and body condition. Theoretically, juveniles should experience significantly greater costs from parasites, being immunologically naive and undergoing a significant growth phase. The aims of our study were to quantify the subclinical effects of helminths in juvenile eastern grey kangaroos (Macropus giganteus), which commonly harbour large burdens of gastrointestinal nematodes and are susceptible to associated mass mortality during cold, wet conditions. We conducted a field experiment on a population of free-ranging kangaroos, removing nematodes from one group of juveniles using an anthelmintic treatment. We then compared growth parameters (body condition and growth rates) and haematological parameters of this group with an age-matched, parasitised (untreated) control group. Treated juvenile kangaroos had significantly higher levels of plasma protein (albumin) but, contrary to our predictions, showed negligible changes in all the other parameters measured. Our results suggest that juvenile kangaroos are largely unaffected by their gastrointestinal helminth burdens, and may be able to compensate for the costs of parasites. PMID:25161906

  14. Prey preferences and prey acceptance in juvenile Brown Treesnakes (Boiga irregularis)

    USGS Publications Warehouse

    Lardner, Bjorn; Savidge, Julie A.; Rodda, Gordon H.; Reed, Robert N.

    2009-01-01

    On the Pacific island of Guam, control of the invasive Brown Treesnake (Boiga irregularis) relies largely on methods that use mice as bait. Juvenile B. irregularis feed primarily on lizards and their eggs, but little is known about their prey preference. We conducted an experiment to investigate preferences for, and acceptance of, dead geckos, skinks, and neonatal mice, in juvenile B. irregularis ranging from 290 mm to ca. 700 mm snout-vent length (SVL). Snakes of all sizes showed a preference for geckos over skinks and neonatal mice. Geckos were the first prey chosen in 87% of 224 initial trials (56 snakes subjected to four trials each; 33% would be expected from a random choice). The smallest snakes had the most pronounced preference. Although many of the snakes accepted neonatal mice and/or skinks, some snakes of all sizes were reluctant to feed on anything but geckos, especially when well fed. We also addressed the hypothesis that repeated encounters with a particular prey type increase a snake's preference for that prey. Our study does not support this hypothesis. Our results suggest that control methods relying solely on rodent bait may be inefficient for targeting snakes < 700 mm SVL and that individual heterogeneity in prey preference may cause a significant part of this juvenile cohort to be completely refractory to capture with rodent bait, even if the bait is dead and small enough to be readily swallowed.

  15. Conceptualizing juvenile prostitution as child maltreatment: findings from the National Juvenile Prostitution Study.

    PubMed

    Mitchell, Kimberly J; Finkelhor, David; Wolak, Janis

    2010-02-01

    Two studies were conducted to identify the incidence (Study 1) and characteristics (Study 2) of juvenile prostitution cases known to law enforcement agencies in the United States. Study 1 revealed a national estimate of 1,450 arrests or detentions (95% confidence interval [CI]: 1,287-1,614) in cases involving juvenile prostitution during a 1-year period. In Study 2, exploratory data were collected from a subsample of 138 cases from police records in 2005. The cases are broadly categorized into three main types: (a) third-party exploiters, (b) solo prostitution, and (c) conventional child sexual abuse (CSA) with payment. Cases were classified into three initial categories based on police orientation toward the juvenile: (a) juveniles as victims (53%), (b) juveniles as delinquents (31%), and (c) juvenile as both victims and delinquents (16%). When examining the status of the juveniles by case type, the authors found that all the juveniles in CSA with payment cases were treated as victims, 66% in third-party exploiters cases, and 11% in solo cases. Findings indicate law enforcement responses to juvenile prostitution are influential in determining whether such youth are viewed as victims of commercial sexual exploitation or as delinquents.

  16. Juvenile Fibromyalgia: Different from the Adult Chronic Pain Syndrome?

    PubMed

    Kashikar-Zuck, Susmita; King, Christopher; Ting, Tracy V; Arnold, Lesley M

    2016-04-01

    While a majority of research has focused on adult fibromyalgia (FM), recent evidence has provided insights into the presence and impact of FM in children and adolescents. Commonly referred as juvenile fibromyalgia (JFM), youths, particularly adolescent girls, present with persistent widespread pain and cardinal symptoms observed in adult FM. A majority of youth with JFM continue to experience symptoms into adulthood, which highlights the importance of early recognition and intervention. Some differences are observed between adult and juvenile-onset FM syndrome with regard to comorbidities (e.g., joint hypermobility is common in JFM). Psychological comorbidities are common but less severe in JFM. Compared to adult FM, approved pharmacological treatments for JFM are lacking, but non-pharmacologic approaches (e.g., cognitive-behavioral therapy and exercise) show promise. A number of conceptual issues still remain including (1) directly comparing similarities and differences in symptoms and (2) identifying shared and unique mechanisms underlying FM in adults and youths.

  17. Physiological and molecular responses in brain of juvenile common carp (Cyprinus carpio) following exposure to tributyltin.

    PubMed

    Li, Zhi-Hua; Li, Ping; Shi, Ze-Chao

    2016-03-01

    Tributyltin (TBT), as antifouling paints, is widely present in aquatic environment, but little is known regarding the toxicity of TBT on fish brain. In this study, the effects of exposure to TBT on the antioxidant defense system, Na(+) -K(+) -ATPase activity, neurological enzymes activity and Hsp 70 protein level in brain of juvenile common carp (Cyprinus carpio) were studied. Fish were exposed to sublethal concentrations of TBT (5, 10 and 20 μg/L) for 7 days. Based on the results, with increasing concentrations of TBT, oxidative stress was apparent as reflected by the significant higher levels of oxidative indices, as well as the significant inhibition of all antioxidant enzymes activities. Besides, the activities of Acetylcholinesterase (AChE), Monoamine oxidases (MAO) and Na(+) -K(+) -ATPase were significantly inhibited after exposure to TBT with higher concentrations. In addition, the levels of Hsp 70 protein were evaluated under TBT stress with dose-depended manner. These results suggest that selected physiological responses in fish brain could be used as potential biomarkers for monitoring residual organotin compounds present in aquatic environment. © 2014 Wiley Periodicals, Inc.

  18. Black Juveniles in the Juvenile Justice System: A Cause for Alarm.

    ERIC Educational Resources Information Center

    LeFlore, Larry

    This report examines the representation of black youth in the juvenile justice system, describes changes in juvenile justice philosophy, and discusses policy implications. Black youth are overrepresented at all stages of the juvenile justice system compared to white youth. Positivist theories explain this overrepresentation as the result of…

  19. The nature and prevalence of psychiatric disorders in a Sudanese juvenile correctional facility

    PubMed Central

    Awadelkarim, Mohamed Ali

    2016-01-01

    High morbidity of mental disorders among juvenile offenders has been confirmed by several studies, thus challenging both the juvenile justice system and the mental health system. Data from developed countries may not reflect the situation in low-income countries and therefore cannot form a basis for intervention. No similar study has been done in Sudan. The objective to determine prevalence of psychiatric disorders among incarcerated youth in Al-Juref juvenile correctional facility. All juveniles (forty eight) were studied utilizing a descriptive cross-sectional study design. Data was collected using a socio-demographic questionnaire and the MINI-KID 6.0 and was analyzed using the SPSS v.20. Most respondents were males (Forty six) with a mean age of fifteen (±1.6 years SD). Most were living with both parents (75%) and were school dropouts (41.7%). The majority was arrested for theft (33.3%) and rape (29.2%). Prevalence of psychiatric disorders was high (60.4%) with conduct disorder (CD) being the most common (47.9%), followed by anxiety disorders (31.1%) and major depressive disorder (14.6%). Comorbid psychiatric disorders rate was high (31%). Even after subtracting CD, prevalence was still common (39%). New information can help mental health providers and policy makers in the juvenile justice system make effective interventions in provision of mental health services. We recommend clinical assessment for juveniles when they appear at court and training of workers in the justice system on how to detect features of psychopathology. PMID:28096556

  20. Relational Resilience in Māori, Pacific, and European Sole Parent Families: From Theory and Research to Social Policy.

    PubMed

    Waldegrave, Charles; King, Peter; Maniapoto, Maria; Tamasese, Taimalieutu Kiwi; Parsons, Tafaoimalo Loudeen; Sullivan, Ginny

    2016-12-01

    This study reports findings and policy recommendations from a research project that applied a relational resilience framework to a study of 60 sole parent families in New Zealand, with approximately equal numbers of Māori, Pacific, and European (White) participants. The sole parent families involved were already known to be resilient and the study focused on identifying the relationships and strategies underlying the achievement and maintenance of their resilience. The study was carried out to provide an evidence base for the development and implementation of policies and interventions to both support sole parent families who have achieved resilience and assist those who struggle to do so. The three populations shared many similarities in their pathways to becoming sole parents and the challenges they faced as sole parents. The coping strategies underlying their demonstrated resilience were also broadly similar, but the ways in which they were carried out did vary in a manner that particularly reflected cultural practices in terms of their reliance upon extended family-based support or support from outside the family. The commonalities support the appropriateness of the common conceptual framework used, whereas the differences underline the importance of developing nuanced policy responses that take into account cultural differences between the various populations to which policy initiatives are directed. © 2016 Family Process Institute.

  1. SOLE: enhanced FIA data analysis capabilities

    Treesearch

    Michael Spinney; Paul Van Deusen

    2009-01-01

    The Southern On Line Estimator (SOLE), is an Internet-based annual forest inventory and analysis (FIA) data analysis tool developed cooperatively by the National Council for Air and Stream Improvement and the Forest Service, U.S. Department of Agriculture's Forest Inventory and Analysis program at the Southern Research Station. Recent development of SOLE has...

  2. Successful Treatment of Plantar Hyperkeratosis in the Form of Recurrent Corns With Split-Thickness Sole Skin Graft.

    PubMed

    Wang, Chi-Yu; Chang, Chun-Kai; Chou, Chang-Yi; Wu, Chien-Ju; Chu, Tzi-Shiang; Chiao, Hao-Yu; Chen, Chun-Yu; Chen, Tim-Mo; Tzeng, Yuan-Sheng

    2018-02-01

    Plantar hyperkeratosis, such as corns and calluses, is common in older people and associated with pain, mobility impairment, and functional limitations. It usually develops on the palms, knees, or soles of feet, especially under the heels or balls. There are several treatment methods for plantar hyperkeratosis, such as salicylic acid plaster and scalpel debridement, and conservative modalities, such as using a shoe insert and properly fitting shoes. We present an effective method of reconstructing the wound after corn excision using a split-thickness sole skin graft (STSSG). We harvested the skin graft from the arch of the sole using the dermatome with a skin thickness of 14/1000th inches. Because the split-thickness skin graft, harvested from the sole arch near the distal sole, is much thicker than the split-thickness skin graft from the thigh, it is more resistant to weight and friction. The healed wound with STSSG coverage over the distal sole was intact, and the donor site over the sole arch had healed without complication during the outpatient follow-up, 3 months after surgery. The recovery time of STSSG for corn excision is shorter than that with traditional treatment. Therefore, STSSG can be a reliable alternative treatment for recurrent palmoplantar hyperkeratosis.

  3. Diagnosis of systemic-onset juvenile idiopathic arthritis after treatment for presumed Kawasaki disease.

    PubMed

    Dong, Siwen; Bout-Tabaku, Sharon; Texter, Karen; Jaggi, Preeti

    2015-05-01

    To estimate the incidence of systemic-onset juvenile idiopathic arthritis (SoJIA) within 6 months after treatment for presumed Kawasaki disease (KD) (presumed patients with KD with subsequent diagnosis of SoJIA [pKD/SoJIA]) and describe presentation differences from sole KD. We identified patients treated for KD at Nationwide Children's Hospital and from the Pediatric Health Information System from 2009-2013. We then identified the subset of children, pKD/SoJIA, who received an International Classification of Diseases, Ninth Revision code for SoJIA and had it listed at least once 3 months after and within 6 months after KD diagnosis. Demographic characteristics, readmission rates, treatments, and complications were noted. A literature review was also performed to identify clinical, laboratory, and echocardiographic data of previously documented patients with KD later diagnosed with SoJIA. There were 6745 total treated patients with KD in the Pediatric Health Information System database during the study period; 10 patients were identified to have pKD/SoJIA (0.2% of cohort). Those with pKD/SoJIA were predominantly Caucasian compared with patients with KD (90% and 46.8%, respectively; P=.003). Macrophage activation syndrome was more common in patients with pKD/SoJIA than in sole patients with KD (30% and 0.30%, respectively; P<.001). Fifteen cases of pKD/SoJIA were identified by literature and chart review, 12 of whom were initially diagnosed with incomplete KD. We reported a 0.2% incidence of pKD/SoJIA, which was associated with Caucasian race, macrophage activation syndrome, and an incomplete KD phenotype. Copyright © 2015 Elsevier Inc. All rights reserved.

  4. Oman metamorphic sole formation reveals early subduction dynamics

    NASA Astrophysics Data System (ADS)

    Soret, Mathieu; Agard, Philippe; Dubacq, Benoît; Plunder, Alexis; Ildefonse, Benoît; Yamato, Philippe; Prigent, Cécile

    2016-04-01

    Metamorphic soles correspond to m to ~500m thick tectonic slices welded beneath most of the large-scale ophiolites. They typically show a steep inverted metamorphic structure where the pressure and temperature conditions of crystallization increase upward (from 500±100°C at 0.5±0.2 GPa to 800±100°C at 1.0±0.2 GPa), with isograds subparallel to the contact with the overlying ophiolitic peridotite. The proportion of mafic rocks in metamorphic soles also increases from the bottom (meta-sediments rich) to the top (approaching the ophiolite peridotites). These soles are interpreted as the result of heat transfer from the incipient mantle wedge toward the nascent slab (associated with large-scale fluid transfer and possible shear heating) during the first My of intra-oceanic subduction (as indicated by radiometric ages). Metamorphic soles provide therefore major constraints on early subduction dynamics (i.e., thermal structure, fluid migration and rheology along the nascent slab interface). We present a detailed structural and petrological study of the metamorphic sole from 4 major cross-sections along the Oman ophiolite. We show precise pressure-temperature estimates obtained by pseudosection modelling and EBSD measurements performed on both the garnet-bearing and garnet-free high-grade sole. Results allow quantification of the micro-scale deformation and highlight differences in pressure-temperature-deformation conditions between the 4 different locations, showing that the inverted metamorphic gradient through the sole is not continuous in all locations. Based on these new constraints, we suggest a new tectonic-petrological model for the formation of metamorphic soles below ophiolites. This model involves the stacking of several homogeneous slivers of oceanic crust leading to the present-day structure of the sole. In this view, these thrusts are the result of rheological contrasts between the sole and the peridotite as the plate interface progressively cools down

  5. Our Children Are Hurting: Fact Sheet on the Disproportionate Involvement of Indian Young People in the Juvenile Justice and Child Welfare Systems in Ontario, 1981-1982.

    ERIC Educational Resources Information Center

    Jolly, Stan

    This fact sheet documents the disturbing overrepresentation of status Indian youth in the juvenile justice and child welfare systems of Ontario (Canada). However, the information represents only the tip of the iceberg. Data relate solely to children and youth whose parents resided on an Indian reserve; who were dealt with by the family court (not…

  6. Juvenile Arthritis

    MedlinePlus

    Juvenile arthritis (JA) is arthritis that happens in children. It causes joint swelling, pain, stiffness, and loss of motion. It can affect any joint, but ... of JA that children get is juvenile idiopathic arthritis. There are several other forms of arthritis affecting ...

  7. Sonographic diagnosis of juvenile polyps in children.

    PubMed

    Zhang, Yao; Li, Shi-Xing; Xie, Li-Mei; Shi, Bo; Ju, Hao; Bai, Yu-Zuo; Zhang, Shu-Cheng

    2012-09-01

    The aim of this study was to assess the diagnostic value of ultrasonography for juvenile polyps in children and their sonographic characteristics. A retrospective analysis was performed of the ultrasound findings in 27 children who were diagnosed preoperatively with juvenile polyp within the intestinal tract by ultrasonography and then confirmed by colonoscopy, laparotomy and histopathology. The ultrasonic finding common to all polyps was an isolated intraluminal nodular or massive protrusion, associated with multiple mesh-like fluid areas of different sizes. In 25 children, surrounding pedicle-like low echoes of varying lengths were seen connecting with the polyps to form "mushroom" sign. The color Doppler showed abundant blood flow signals within all polyps and pedicles in a shape of a branch or an umbrella. For seven children with an intussusception, the polyp shadow was detected in the cervical part or interior of the intussusception. Ultrasonography is, thus, considered to be a feasible method for diagnosing intestinal juvenile polyp. Copyright © 2012 World Federation for Ultrasound in Medicine & Biology. Published by Elsevier Inc. All rights reserved.

  8. Shallow-water habitat use by Bering Sea flatfishes along the central Alaska Peninsula

    NASA Astrophysics Data System (ADS)

    Hurst, Thomas P.

    2016-05-01

    Flatfishes support a number of important fisheries in Alaskan waters and represent major pathways of energy flow through the ecosystem. Despite their economic and ecological importance, little is known about the use of habitat by juvenile flatfishes in the eastern Bering Sea. This study describes the habitat characteristics of juvenile flatfishes in coastal waters along the Alaska Peninsula and within the Port Moller-Herendeen Bay system, the largest marine embayment in the southern Bering Sea. The two most abundant species, northern rock sole and yellowfin sole, differed slightly in habitat use with the latter occupying slightly muddier substrates. Both were more common along the open coastline than they were within the bay, whereas juvenile Alaska plaice were more abundant within the bay than along the coast and used shallow waters with muddy, high organic content sediments. Juvenile Pacific halibut showed the greatest shift in distribution between age classes: age-0 fish were found in deeper waters (~ 30 m) along the coast, whereas older juveniles were found in the warmer, shallow waters within the bay, possibly due to increased thermal opportunities for growth in this temperature-sensitive species. Three other species, starry flounder, flathead sole, and arrowtooth flounder, were also present, but at much lower densities. In addition, the habitat use patterns of spring-spawning flatfishes (northern rock sole, Pacific halibut, and Alaska plaice) in this region appear to be strongly influenced by oceanographic processes that influence delivery of larvae to coastal habitats. Overall, use of the coastal embayment habitats appears to be less important to juvenile flatfishes in the Bering Sea than in the Gulf of Alaska.

  9. The Juvenile Hafnium Isotope Signal as a Record of Supercontinent Cycles

    PubMed Central

    Gardiner, Nicholas J.; Kirkland, Christopher L.; Van Kranendonk, Martin J.

    2016-01-01

    Hf isotope ratios measured in igneous zircon are controlled by magmatic source, which may be linked to tectonic setting. Over the 200–500 Myr periodicity of the supercontinent cycle - the principal geological phenomenon controlling prevailing global tectonic style - juvenile Hf signals, i.e. most radiogenic, are typically measured in zircon from granites formed in arc settings (crustal growth), and evolved zircon Hf signals in granites formed in continent-collision settings (crustal reworking). Interrogations of Hf datasets for excursions related to Earth events commonly use the median value, however this may be equivocal due to magma mixing. The most juvenile part of the Hf signal is less influenced by crustal in-mixing, and arguably a more sensitive archive of Earth’s geodynamic state. We analyze the global Hf dataset for this juvenile signal, statistically correlating supercontinent amalgamation intervals with evolved Hf episodes, and breakup leading to re-assembly with juvenile Hf episodes. The juvenile Hf signal is more sensitive to Pangaea and Rodinia assembly, its amplitude increasing with successive cycles to a maximum with Gondwana assembly which may reflect enhanced subduction-erosion. We demonstrate that the juvenile Hf signal carries important information on prevailing global magmatic style, and thus tectonic processes. PMID:27924946

  10. The Juvenile Hafnium Isotope Signal as a Record of Supercontinent Cycles.

    PubMed

    Gardiner, Nicholas J; Kirkland, Christopher L; Van Kranendonk, Martin J

    2016-12-07

    Hf isotope ratios measured in igneous zircon are controlled by magmatic source, which may be linked to tectonic setting. Over the 200-500 Myr periodicity of the supercontinent cycle - the principal geological phenomenon controlling prevailing global tectonic style - juvenile Hf signals, i.e. most radiogenic, are typically measured in zircon from granites formed in arc settings (crustal growth), and evolved zircon Hf signals in granites formed in continent-collision settings (crustal reworking). Interrogations of Hf datasets for excursions related to Earth events commonly use the median value, however this may be equivocal due to magma mixing. The most juvenile part of the Hf signal is less influenced by crustal in-mixing, and arguably a more sensitive archive of Earth's geodynamic state. We analyze the global Hf dataset for this juvenile signal, statistically correlating supercontinent amalgamation intervals with evolved Hf episodes, and breakup leading to re-assembly with juvenile Hf episodes. The juvenile Hf signal is more sensitive to Pangaea and Rodinia assembly, its amplitude increasing with successive cycles to a maximum with Gondwana assembly which may reflect enhanced subduction-erosion. We demonstrate that the juvenile Hf signal carries important information on prevailing global magmatic style, and thus tectonic processes.

  11. The Juvenile Hafnium Isotope Signal as a Record of Supercontinent Cycles

    NASA Astrophysics Data System (ADS)

    Gardiner, Nicholas J.; Kirkland, Christopher L.; van Kranendonk, Martin J.

    2016-12-01

    Hf isotope ratios measured in igneous zircon are controlled by magmatic source, which may be linked to tectonic setting. Over the 200-500 Myr periodicity of the supercontinent cycle - the principal geological phenomenon controlling prevailing global tectonic style - juvenile Hf signals, i.e. most radiogenic, are typically measured in zircon from granites formed in arc settings (crustal growth), and evolved zircon Hf signals in granites formed in continent-collision settings (crustal reworking). Interrogations of Hf datasets for excursions related to Earth events commonly use the median value, however this may be equivocal due to magma mixing. The most juvenile part of the Hf signal is less influenced by crustal in-mixing, and arguably a more sensitive archive of Earth’s geodynamic state. We analyze the global Hf dataset for this juvenile signal, statistically correlating supercontinent amalgamation intervals with evolved Hf episodes, and breakup leading to re-assembly with juvenile Hf episodes. The juvenile Hf signal is more sensitive to Pangaea and Rodinia assembly, its amplitude increasing with successive cycles to a maximum with Gondwana assembly which may reflect enhanced subduction-erosion. We demonstrate that the juvenile Hf signal carries important information on prevailing global magmatic style, and thus tectonic processes.

  12. Assessing Violence Risk and Psychopathy in Juvenile and Adult Offenders: A Survey of Clinical Practices

    ERIC Educational Resources Information Center

    Viljoen, Jodi L.; McLachlan, Kaitlyn; Vincent, Gina M.

    2010-01-01

    This study surveyed 199 forensic clinicians about the practices that they use in assessing violence risk in juvenile and adult offenders. Results indicated that the use of risk assessment and psychopathy tools was common. Although clinicians reported more routine use of psychopathy measures in adult risk assessments compared with juvenile risks…

  13. Musculoskeletal MRI findings of juvenile localized scleroderma.

    PubMed

    Eutsler, Eric P; Horton, Daniel B; Epelman, Monica; Finkel, Terri; Averill, Lauren W

    2017-04-01

    Juvenile localized scleroderma comprises a group of autoimmune conditions often characterized clinically by an area of skin hardening. In addition to superficial changes in the skin and subcutaneous tissues, juvenile localized scleroderma may involve the deep soft tissues, bones and joints, possibly resulting in functional impairment and pain in addition to cosmetic changes. There is literature documenting the spectrum of findings for deep involvement of localized scleroderma (fascia, muscles, tendons, bones and joints) in adults, but there is limited literature for the condition in children. We aimed to document the spectrum of musculoskeletal magnetic resonance imaging (MRI) findings of both superficial and deep juvenile localized scleroderma involvement in children and to evaluate the utility of various MRI sequences for detecting those findings. Two radiologists retrospectively evaluated 20 MRI studies of the extremities in 14 children with juvenile localized scleroderma. Each imaging sequence was also given a subjective score of 0 (not useful), 1 (somewhat useful) or 2 (most useful for detecting the findings). Deep tissue involvement was detected in 65% of the imaged extremities. Fascial thickening and enhancement were seen in 50% of imaged extremities. Axial T1, axial T1 fat-suppressed (FS) contrast-enhanced and axial fluid-sensitive sequences were rated most useful. Fascial thickening and enhancement were the most commonly encountered deep tissue findings in extremity MRIs of children with juvenile localized scleroderma. Because abnormalities of the skin, subcutaneous tissues and fascia tend to run longitudinally in an affected limb, axial T1, axial fluid-sensitive and axial T1-FS contrast-enhanced sequences should be included in the imaging protocol.

  14. Sole Source Aquifers for NY and NJ

    EPA Pesticide Factsheets

    This layer is the designated sole source aquifers of New York and New Jersey. A Sole Source Aquifer, is an aquifer that supplies 50% or more of the drinking water for a given area where there are no reasonably available alternative sources should the aquifer become contaminated.

  15. Juvenile curfews: are they an effective and constitutional means of combating juvenile violence?

    PubMed

    Fried, C S

    2001-01-01

    Curfew ordinances have become a popular way to attempt to combat juvenile crime and victimization. Although the Supreme Court has yet to hear a curfew case, several constitutional challenges have been brought in lower federal courts. The cases are replete with psychological assumptions for which there is limited empirical evidence. In applying the "strict scrutiny" standard, several courts have also questioned whether juvenile curfews are narrowly tailored to further the State's interest in reducing juvenile crime and victimization. While public opinion and reports from several police jurisdictions support the utility of juvenile curfews, recent empirical studies indicate that curfews are not effective at reducing juvenile offending or victimization. This paper argues that the emerging evidence does not support the use of juvenile curfews and urges policy makers and the courts to examine the efficacy of curfew legislation. Directions for future research that could be helpful to the courts in applying the Bellotti factors to curfew cases are also suggested. Copyright 2001 John Wiley & Sons, Ltd.

  16. Concepts Shaping Juvenile Justice

    ERIC Educational Resources Information Center

    White, Rob

    2008-01-01

    Rob White's paper explores ways in which community building can be integrated into the practices of juvenile justice work. He provides a model of what can be called "restorative social justice", one that builds upon the juvenile conferencing model by attempting to fuse social justice concerns with progressive juvenile justice practices.

  17. The community structure of over-wintering larval and small juvenile fish in a large estuary

    NASA Astrophysics Data System (ADS)

    Munk, Peter; Cardinale, Massimiliano; Casini, Michele; Rudolphi, Ann-Christin

    2014-02-01

    The Skagerrak and Kattegat are estuarine straits of high hydrographical and ecological diversity, situated between the saline waters of the North Sea and the brackish waters of the Baltic Sea. These sustain important nursery grounds of many fish species, of which several overwinter during the larval and early juvenile stages. In order to give more insight into the communities of the overwintering ichthyoplankton in estuarine areas, we examine an annual series of observations from a standard survey carried out 1992-2010. Species differences and annual variability in distributions and abundances are described, and linkages between ichthyoplankton abundances and corresponding hydrographical information are analysed by GAM methods. Communities were dominated by herring, gobies, butterfish, sprat, pipefishes, lemon sole and European eel (i.e. glass eel), and all the sampled species showed large annual fluctuations in abundances. The species showed quite specific patterns of distribution although species assemblages with common distributional characteristics were identified. Within these assemblages, the ichthyoplankton abundances showed linkage to environmental characteristics described by bottom-depth and surface temperature and salinity. Hence the study points to a significant structuring of overwintering ichthyoplankton communities in large estuaries, based on the species habitat choice and its response to physical gradients.

  18. Predictors of support for juvenile sex offender registration: educated individuals recognize the flaws of juvenile registration.

    PubMed

    Stevenson, Margaret C; Smith, Amy C; Sekely, Ady; Farnum, Katlyn S

    2013-01-01

    We investigated demographic predictors of support for juvenile sex offender registration policies, including education level, gender, political orientation, and age. Participants were 168 individuals recruited from public places in a Midwest community (45% women; M age = 42). In line with hypotheses, as education level increased, support for juvenile registration decreased, as did the belief that juvenile registration protects the community. In addition, as education level increased, belief that the juvenile understood his actions decreased, as did support for juvenile registration when it is framed as ineffective at reducing sex crime. These beliefs mediated the relationship between education level and diminished support for juvenile registration. Implications of these results for the advancement of effective juvenile sex offender policy are discussed.

  19. Juvenile Spring Eruption: A Variant of Perniosis?

    PubMed

    Nabatian, Adam S; Rosman, Ilana S; Sturza, Jeffrey; Jacobson, Mark

    2015-09-01

    Juvenile spring eruption (JSE) is a unique condition that typically affects the helices of the ears of boys and young men. The classical clinical picture of JSE includes the abrupt onset of lesions after spending time outdoors in the early spring. Because of the papulovesicular nature of the rash and the history of sun exposure, JSE is considered a variant of polymorphous light eruption. In addition to the term "juvenile spring eruption," this entity has also been described under other less common terms such as "perniosis juvenilis vernalis aurium" or "spring perniosis," which emphasizes the onset in the spring and the possible pathogenic role of cold weather. We present a case of likely JSE with histopathologic features more consistent with perniosis than polymorphous light eruption and present a review the literature.

  20. Do burn centers provide juvenile firesetter intervention?

    PubMed

    Ahrns-Klas, Karla S; Wahl, Wendy L; Hemmila, Mark R; Wang, Stewart C

    2012-01-01

    Juvenile firesetting activity accounts for a significant number of annual injuries and property damage, yet there is sparse information on intervention in the burn literature. To quantify juvenile firesetting intervention (JFSI) in burn centers, a 23-question survey was sent to all directors listed in the American Burn Association Burn Care Facilities Directory.Sixty-four out of 112 (57%) surveys were returned. This represents responses from 79% of currently verified burn centers. When queried on interventions provided to a juvenile firesetter admitted to their unit, 38% report having their own JFSI program and 38% refer the child to fire services. Two thirds of units without a JFSI program treat pediatric patients. Units that previously had a JFSI program report lack of staffing and funding as most common reasons for program discontinuation. Almost all (95%) stated that a visual tool demonstrating legal, financial, social, future, and career ramifications associated with juvenile firesetting would be beneficial to their unit. Many burn units that treat pediatric patients do not have JFSI and rely on external programs operated by fire services. Existing JFSI programs vary greatly in structure and method of delivery. Burn centers should be involved in JFSI, and most units would benefit from a new video toolkit to assist in providing appropriate JFSI. Study results highlight a need for burn centers to collaborate on evaluating effectiveness of JFSI programs and providing consistent intervention materials based on outcomes research.

  1. Nasal juvenile angiofibroma: Current perspectives with emphasis on management.

    PubMed

    López, Fernando; Triantafyllou, Asterios; Snyderman, Carl H; Hunt, Jennifer L; Suárez, Carlos; Lund, Valerie J; Strojan, Primož; Saba, Nabil F; Nixon, Iain J; Devaney, Kenneth O; Alobid, Isam; Bernal-Sprekelsen, Manuel; Hanna, Ehab Y; Rinaldo, Alessandra; Ferlito, Alfio

    2017-05-01

    Juvenile angiofibroma is an uncommon, benign, locally aggressive vascular tumor. It is found almost exclusively in young men. Common presenting symptoms include nasal obstruction and epistaxis. More advanced tumors may present with facial swelling and visual or neurological disturbances. The evaluation of patients with juvenile angiofibroma relies on diagnostic imaging. Preoperative biopsy is not recommended. The mainstay of treatment is resection combined with preoperative embolization. Endoscopic surgery is the approach of choice in early stages, whereas, in advanced stages, open or endoscopic approaches are feasible in expert hands. Postoperative radiotherapy (RT) or stereotactic radiosurgery seem valuable in long-term control of juvenile angiofibroma, particularly those that extend to anatomically critical areas unsuitable for complete resection. Chemotherapy and hormone therapy are ineffective. The purpose of the present review was to update current aspects of knowledge related to this rare and challenging disease. © 2017 Wiley Periodicals, Inc. Head Neck 39: 1033-1045, 2017. © 2017 Wiley Periodicals, Inc.

  2. Effects of shoe sole hardness on plantar pressure and comfort in older people with forefoot pain.

    PubMed

    Lane, Tamara J; Landorf, Karl B; Bonanno, Daniel R; Raspovic, Anita; Menz, Hylton B

    2014-01-01

    Plantar forefoot pain is common in older people and is related to increased peak pressures under the foot during gait. Variations in the hardness of the shoe sole may therefore influence both the magnitude of loading under the foot and the perceived comfort of the shoe in this population. The aim of this investigation was to determine the effect of varying shoe sole hardness on plantar pressures and comfort in older people with forefoot pain. In-shoe plantar pressures under the forefoot, midfoot and rearfoot were recorded from 35 older people (mean age 73.2, SD 4.5 years) with current or previous forefoot pain using the pedar-X(®) system. Participants walked at their normal comfortable speed along an 8m walkway in shoes with three different levels of sole hardness: soft (Shore A25), medium (Shore A40) and hard (Shore A58). Shoe comfort was measured on a 100mm visual analogue scale. There were statistically significant differences in peak pressure of between 5% and 23% across the forefoot, midfoot and rearfoot (p<0.01). The hard-soled shoe registered the highest peak pressures and the soft-soled shoe the lowest peak pressures. However, no differences in comfort scores across the three shoe conditions were observed. These findings demonstrate that as shoe sole hardness increases, plantar pressure increases, however this does not appear to have a significant effect on shoe comfort. Crown Copyright © 2013. Published by Elsevier B.V. All rights reserved.

  3. Youth Offender Care Needs Assessment Tool (YO-CNAT): an actuarial risk assessment tool for predicting problematic child-rearing situations in juvenile offenders on the basis of police records.

    PubMed

    van der Put, Claudia E; Stams, Geert Jan J M

    2013-12-01

    In the juvenile justice system, much attention is paid to estimating the risk for recidivism among juvenile offenders. However, it is also important to estimate the risk for problematic child-rearing situations (care needs) in juvenile offenders, because these problems are not always related to recidivism. In the present study, an actuarial care needs assessment tool for juvenile offenders, the Youth Offender Care Needs Assessment Tool (YO-CNAT), was developed to predict the probability of (a) a future supervision order imposed by the child welfare agency, (b) a future entitlement to care indicated by the youth care agency, and (c) future incidents involving child abuse, domestic violence, and/or sexual norm trespassing behavior at the juvenile's address. The YO-CNAT has been developed for use by the police and is based solely on information available in police registration systems. It is designed to assist a police officer without clinical expertise in making a quick assessment of the risk for problematic child-rearing situations. The YO-CNAT was developed on a sample of 1,955 juvenile offenders and was validated on another sample of 2,045 juvenile offenders. The predictive validity (area under the receiver-operating-characteristic curve) scores ranged between .70 (for predicting future entitlement to care) and .75 (for predicting future worrisome incidents at the juvenile's address); therefore, the predictive accuracy of the test scores of the YO-CNAT was sufficient to justify its use as a screening instrument for the police in deciding to refer a juvenile offender to the youth care agency for further assessment into care needs.

  4. Juvenile Court Statistics - 1972.

    ERIC Educational Resources Information Center

    Office of Youth Development (DHEW), Washington, DC.

    This report is a statistical study of juvenile court cases in 1972. The data demonstrates how the court is frequently utilized in dealing with juvenile delinquency by the police as well as by other community agencies and parents. Excluded from this report are the ordinary traffic cases handled by juvenile court. The data indicate that: (1) in…

  5. Juvenile Court Statistics, 1974.

    ERIC Educational Resources Information Center

    Corbett, Jacqueline; Vereb, Thomas S.

    This report presents information on juvenile court processing of youth in the U.S. during 1974. It is based on data gathered under the National Juvenile Court Statistical Reporting System. Findings can be summarized as follows: (1) 1,252,700 juvenile delinquency cases, excluding traffic offenses, were handled by courts in the U.S. in 1974; (2) the…

  6. Persistence of identifiable remains of white sturgeon juveniles in digestive tracts of northern pikeminnow

    USGS Publications Warehouse

    Gadomski, D.M.; Frost, C.N.

    2004-01-01

    Juvenile white sturgeon, Acipenser transmontanus, have not been commonly identified as prey items in digestive tracts of fishes collected in the wild. In particular, the diet of northern pikeminnow, Ptychocheilus oregonensis, an abundant Pacific Northwest freshwater predator which has been widely studied, has not included juvenile white sturgeon. To aid in interpreting these results and help in planning future feeding studies, we determined the persistence of identifiable remains of white sturgeon juveniles in this predator's digestive tract. Northern pikeminnow (mean total length = 476 mm), were force-fed meals of 2 or 3 juvenile white sturgeon (mean total length = 91 mm). After digestive periods of 4, 8, 16, 24, 28, and 32h at a water temperature of about 17 ??C, fish were sacrificed, digestive tracts removed, and contents examined. Our results indicate that juvenile white sturgeon would be readily discernable in digestive tracts of northern pikeminnow at least a day after feeding, with scutes remaining undigested and identifiable for 28 h.

  7. Rhythm Pattern of Sole through Electrification of the Human Body When Walking

    NASA Astrophysics Data System (ADS)

    Takiguchi, Kiyoaki; Wada, Takayuki; Tohyama, Shigeki

    The rhythm of automatic cyclic movements such as walking is known to be generated by a rhythm generator called CPG in the spinal cord. The measurement of rhythm characteristics in walking is considered to be important for analyzing human bipedal walking and adaptive walking on irregular terrain. In particular, the soles that contact the terrain surface perform flexible movements similar to the movement of the fins of a lungfish, which is considered to be the predecessor of land animals. The sole movements are believed to be a basic movement acquired during prehistoric times. The detailed rhythm pattern of sole motion is considered to be important. We developed a method for measuring electrification without installing device on a subject's body and footwear for stabilizing the electrification of the human body. We measured the rhythm pattern of 20 subjects including 4 infants when walking by using this system and the corresponding equipment. Therefore, we confirmed the commonality of the correlative rhythm patterns of 20 subjects. Further, with regard to an individual subject, the reproducibility of a rhythm pattern with strong correlation coefficient > 0.93 ± 0.5 (mean ± SD) concerning rhythms of trials that are differently conducted on adult subjects could be confirmed.

  8. Metamorphic sole formation reveals plate interface rheology during early subduction

    NASA Astrophysics Data System (ADS)

    Mathieu, S.; Agard, P.; Dubacq, B.; Plunder, A.; Prigent, C.

    2015-12-01

    Metamorphic soles are m to ~500m thick tectonic slices welded beneath most large ophiolites. They correspond to highly to mildly deformed portions of oceanic lithosphere metamorphosed at amphibolite to granulite facies peak conditions. Metamorphic soles are interpreted as formed ≤1-2Ma after intraoceanic subduction initiation by heat transfer from the hot, incipient mantle wegde to the underthrusting lower plate. Their early accretion and exhumation together with the future ophiolite implies at least one jump of the subduction plate interface from above to below the metamorphic sole. Metamorphic soles thus represent one of the few remnants of the very early evolution of the subduction plate interface and provide major constraints on the thermal structure and the effective rheology of the crust and mantle along the nascent slab interface.We herein present a structural and petrological detailed description of the Oman and Turkey metamorphic soles. Both soles present a steep inverted metamorphic structure, with isograds subparallel to the peridotite contact, in which the proportion of mafic rocks, pressure and temperature conditions increase upward. They comprise, as most metamorphic soles worldwide, two main units: (1) a high-grade unit adjacent to the overlying peridotite composed of granulitized to amphibolized metabasalts, with rare metasedimentary interlayers (~800±100ºC at 10±2kbar) and (2) a low-grade greenschist facies unit composed of metasedimentary rocks with rare metatuffs (~500±100ºC at 5±2kbar). We provide for the first time refined P-T peak condition estimations by means of pseudosection modelling and maximum temperature constraints for the Oman low-grade sole by RAMAN thermometry. In order to quantify micro-scale deformations trough the sole, we also present EBSD data on the Oman garnet-bearing and garnet-free high-grade sole.With these new constraints, we finally propose a new conceptual mechanical model for metamorphic sole formation. This

  9. Juvenile polyarteritis nodosa associated with toxoplasmosis presenting as Kawasaki disease.

    PubMed

    Başaran, Özge; Çakar, Nilgün; Gür, Gökçe; Kocabaş, Abdullah; Gülhan, Belgin; Çaycı, Fatma Şemsa; Çelikel, Banu Acar

    2014-04-01

    Polyarteritis nodosa (PAN) is a vasculitis characterized by inflammatory necrosis of medium-sized arteries. Juvenile PAN and Kawasaki disease (KD) both cause vasculitis of the medium-sized arteries, and share common features. They have overlapping clinical features. Treatment should be managed according to the severity of symptoms and persistence of clinical manifestations. Herein is described the case of a 14-year-old boy first diagnosed with KD, who then fulfilled the criteria for juvenile PAN due to the development of severe myalgia, persistent fever, polyneuropathy and coronary arterial dilatation. He also had acute toxoplasmosis at the onset of vasculitis symptoms. The final diagnosis was of juvenile PAN associated with toxoplasmosis infection. Toxoplasma infection can be considered as an etiological agent for PAN and other vasculitis syndromes. Awareness of toxoplasmosis-related PAN facilitates early diagnosis, and instigation of appropriate treatment. © 2014 The Authors. Pediatrics International © 2014 Japan Pediatric Society.

  10. Stiffness Effects in Rocker-Soled Shoes: Biomechanical Implications

    PubMed Central

    Su, Pei-Fang; Chung, Chia-Hua; Hsia, Chi-Chun; Chang, Chih-Han

    2017-01-01

    Rocker-soled shoes provide a way to reduce the possible concentration of stress, as well as change movement patterns, during gait. This study attempts to examine how plantar force and spatio-temporal variables are affected by two rocker designs, one with softer and one with denser sole materials, by comparing them with the barefoot condition and with flat-soled shoes. Eleven subjects’ gait parameters during walking and jogging were recorded. Our results showed that compared with barefoot walking, plantar forces were higher for flat shoes while lower for both types of rocker shoes, the softer-material rocker being the lowest. The plantar force of flat shoes is greater than the vertical ground reaction force, while that of both rocker shoes is much less, 13.87–30.55% body weight. However, as locomotion speed increased to jogging, for all shoe types, except at the second peak plantar force of the denser sole material rocker shoes, plantar forces were greater than for bare feet. More interestingly, because the transmission of force was faster while jogging, greater plantar force was seen in the rocker-soled shoes with softer material than with denser material; results for higher-speed shock absorption in rocker-soled shoes with softer material were thus not as good. In general, the rolling phenomena along the bottom surface of the rocker shoes, as well as an increase in the duration of simultaneous curve rolling and ankle rotation, could contribute to the reduction of plantar force for both rocker designs. The possible mechanism is the conversion of vertical kinetic energy into rotational kinetic energy. To conclude, since plantar force is related to foot-ground interface and deceleration methods, rocker-design shoes could achieve desired plantar force reduction through certain rolling phenomena, shoe-sole stiffness levels, and locomotion speeds. PMID:28046009

  11. Stiffness Effects in Rocker-Soled Shoes: Biomechanical Implications.

    PubMed

    Lin, Shih-Yun; Su, Pei-Fang; Chung, Chia-Hua; Hsia, Chi-Chun; Chang, Chih-Han

    2017-01-01

    Rocker-soled shoes provide a way to reduce the possible concentration of stress, as well as change movement patterns, during gait. This study attempts to examine how plantar force and spatio-temporal variables are affected by two rocker designs, one with softer and one with denser sole materials, by comparing them with the barefoot condition and with flat-soled shoes. Eleven subjects' gait parameters during walking and jogging were recorded. Our results showed that compared with barefoot walking, plantar forces were higher for flat shoes while lower for both types of rocker shoes, the softer-material rocker being the lowest. The plantar force of flat shoes is greater than the vertical ground reaction force, while that of both rocker shoes is much less, 13.87-30.55% body weight. However, as locomotion speed increased to jogging, for all shoe types, except at the second peak plantar force of the denser sole material rocker shoes, plantar forces were greater than for bare feet. More interestingly, because the transmission of force was faster while jogging, greater plantar force was seen in the rocker-soled shoes with softer material than with denser material; results for higher-speed shock absorption in rocker-soled shoes with softer material were thus not as good. In general, the rolling phenomena along the bottom surface of the rocker shoes, as well as an increase in the duration of simultaneous curve rolling and ankle rotation, could contribute to the reduction of plantar force for both rocker designs. The possible mechanism is the conversion of vertical kinetic energy into rotational kinetic energy. To conclude, since plantar force is related to foot-ground interface and deceleration methods, rocker-design shoes could achieve desired plantar force reduction through certain rolling phenomena, shoe-sole stiffness levels, and locomotion speeds.

  12. Kinetic Assessment of Golf Shoe Outer Sole Design Features

    PubMed Central

    Smith, Neal A.; Dyson, Rosemary J.

    2009-01-01

    This study assessed human kinetics in relation to golf shoe outer sole design features during the golf swing using a driver club by measuring both within the shoe, and beneath the shoe at the natural grass interface. Three different shoes were assessed: metal 7- spike shoe, alternative 7-spike shoe, and a flat soled shoe. In-shoe plantar pressure data were recorded using Footscan RS International pressure insoles and sampling at 500 Hz. Simultaneously ground reaction force at the shoe outer sole was measured using 2 natural grass covered Kistler force platforms and 1000 Hz data acquisition. Video recording of the 18 right-handed golfers at 200 Hz was undertaken while the golfer performed 5 golf shots with his own driver in each type of shoe. Front foot (nearest to shot direction) maximum vertical force and torque were greater than at the back foot, and there was no significant difference related to the shoe type. Wearing the metal spike shoe when using a driver was associated with more torque generation at the back foot (p < 0. 05) than when the flat soled shoe was worn. Within shoe regional pressures differed significantly with golf shoe outer sole design features (p < 0.05). Comparison of the metal spike and alternative spike shoe results provided indications of the quality of regional traction on the outer sole. Potential golf shoe outer sole design features and traction were presented in relation to phases of the golf swing movement. Application of two kinetic measurement methods identified that moderated (adapted) muscular control of foot and body movement may be induced by golf shoe outer sole design features. Ground reaction force measures inform comparisons of overall shoe functional performance, and insole pressure measurements inform comparisons of the underfoot conditions induced by specific regions of the golf shoe outer sole. Key points Assessments of within golf shoe pressures and beneath shoe forces at the natural grass interface were conducted

  13. Lawyers and Legal Advocacy in Juvenile Courts: An Assessment.

    ERIC Educational Resources Information Center

    Puritz, Patricia; Burrell, Sue; Schwartz, Robert; Soler, Mark; Warboys, Loren

    2000-01-01

    Evaluates the juvenile justice system focusing on the barriers children encounter when seeking appropriate counsel and the quality of representation. Includes an assessment of the appointment of counsel, pretrial preparation and trial performance, post-trial maneuvers, and appeals. Finds that the most common obstacle is the overwhelming caseloads…

  14. Glaucoma in juvenile xanthogranuloma.

    PubMed

    Vendal, Zarmeena; Walton, David; Chen, Teresa

    2006-01-01

    Juvenile xanthogranuloma (JXG) is a benign histiocytic skin disorder mainly encountered during infancy. Approximately 10% of cases exhibit ocular manifestations leading to serious complications. Specifically, secondary glaucoma can result in severe and blinding eye disease. We present a case of a two-month-old female with JXG related glaucoma in order to demonstrate the classic presentation and the problems commonly encountered in treating this disease. The natural history, pathogenesis, and treatment of the condition are then discussed and the pertinent literature reviewed. JXG should be considered in any case of unilateral glaucoma that presents in infancy.

  15. Toxicity of Tributyltin in Juvenile Common Carp (Cyprinus Carpio): Physiological Responses, Hepatic Gene Expression, and Stress Protein Profiling.

    PubMed

    Li, Zhi-Hua; Zhong, Li-Qiao; Mu, Wei-Na; Wu, Yan-Hua

    2016-02-01

    In this study, the effects of tributyltin (TBT) on biochemical parameters (antioxidant responses and Na(+) -K(+) -ATPase) in different tissues were investigated by using juvenile common carp (Cyprinus Carpio) as well as growth and ion regulation-related genes expression and stress-related proteins profiling in fish liver. Oxidative stress indices and Na(+) -K(+) -ATPase showed tissues-specific responses in fish exposed to different TBT concentrations. All tested genes related to GH/IGF-I axis and ion-regulation were significantly induced in the TBT group with lower concentrations (except for the igfbp3 in 10 μg/L) and were inhibited in 20 μg/L. In addition, the profiling of two proteins Hsp 70 and MT were increasing in a dose-dependent manner under TBT stress. In short, TBT-induced biochemical and molecular responses in different tissues were reflected in the measured parameters in the test. On the basis of TBT residue levels in the natural environment, more long-term experiments at lower concentrations will be necessary in the future. © 2015 Wiley Periodicals, Inc.

  16. Larval, pre-juvenile and juvenile development of Diapterus peruvianus (Perciformes: Gerreidae).

    PubMed

    Jiménez Rosenberg, Sylvia Patricia; González Navarro, Enrique; Saldierna Martínez, Ricardo Javier

    2003-06-01

    The development of Diapterus peruvianus (Sauvage 1879) is based on 60 larvae collected in superficial tows made in Bahía Concepción, and on 16 pre-juvenile and juvenile organisms collected in Bahía de La Paz, B. C. S., México, using a standard plankton net and a rectangular epibenthonic net, respectively. Larvae of D. peruvianus show three large blotches on the dorsum of the gut that can fuse together and give the appearance of one large continuous blotch. There are two to three pre-anal pigments and 16 post-anal pigments in the ventral midline; cephalic pigments are present from the postflexion stage, as well as a serrated preoperculum. The pre-juvenile and juvenile organisms are distinguished by their body depth, the anal-fin formula, the serrated pre-operculum and the base pigments in the dorsal and anal fins.

  17. Two alternative juvenile life history types for fall Chinook salmon in the Snake River basin

    USGS Publications Warehouse

    Connor, W.P.; Sneva, J.G.; Tiffan, K.F.; Steinhorst, R.K.; Ross, D.

    2005-01-01

    Fall Chinook salmon Oncorhynchus tshawytscha in the Snake River basin were listed under the Endangered Species Act in 1992. At the time of listing, it was assumed that fall Chinook salmon juveniles in the Snake River basin adhered strictly to an ocean-type life history characterized by saltwater entry at age 0 and first-year wintering in the ocean. Research showed, however, that some fall Chinook salmon juveniles in the Snake River basin spent their first winter in a reservoir and resumed seaward movement the following spring at age 1 (hereafter, reservoir-type juveniles). We collected wild and hatchery ocean-type fall Chinook salmon juveniles in 1997 and wild and hatchery reservoir-type juveniles in 1998 to assess the condition of the reservoir-type juveniles at the onset of seaward movement. The ocean-type juveniles averaged 112-139 mm fork length, and the reservoir-type juveniles averaged 222-224 mm fork length. The large size of the reservoir-type juveniles suggested a high potential for survival to salt water and subsequent return to freshwater. Scale pattern analyses of the fall Chinook salmon spawners we collected during 1998-2003 supported this point. Of the spawners sampled, an overall average of 41% of the wild fish and 51% of the hatchery fish had been reservoir-type juveniles. Males that had been reservoir-type juveniles often returned as small "minijacks" (wild, 16% of total; hatchery, 40% of total), but 84% of the wild males, 60% of the hatchery males, and 100% of the wild and hatchery females that had been reservoir-type juveniles returned at ages and fork lengths commonly observed in populations of Chinook salmon. We conclude that fall Chinook salmon in the Snake River basin exhibit two alternative juvenile life histories, namely ocean-type and reservoir-type. ?? Copyright by the American Fisheries Society 2005.

  18. Verification of a ‘freshwater-type’ life history variant of juvenile American shad in the Columbia River

    USGS Publications Warehouse

    Wetzel, Lisa A.; Larsen, Kimberly A.; Parsley, Michael J.; Zimmerman, Christian E.

    2011-01-01

    American shad are native to the Atlantic coast of North America and were successfully introduced to the Pacific coast in the 1870s. They are now more abundant in the Columbia River than are its native salmon. As in their native range, Columbia River American shad are anadromous and have been assumed to solely exhibit an ‘ocean-type’ life history, characterized by a short period of juvenile rearing in freshwater, followed by seaward migration and saltwater entry before age-1, with sexually mature individuals returning to freshwater to spawn beginning at age-3. During October 2007, emigrating juvenile American shad were captured in the juvenile fish monitoring facility at Bonneville Dam (river kilometer 235) on the Columbia River. Their length frequencies revealed the presence of two modes; the lower mode averaged 77 mm fork length (FL) and the upper mode averaged 184 mm FL. A subsample of fish from each mode was aged using otoliths. Otoliths from the lower mode (n=10) had no annuli, indicating that they were all age-0, while otoliths from the upper mode (n=25) had one or two annuli, indicating that they were either age-1 or age-2, respectively. Spawning adults collected in June 2007 averaged 393 mm FL (range 305-460 mm; n=21) and were estimated to range in age from 3-6. Elemental analyses of juvenile and adult otoliths provide evidence for deviations from the typical migration pattern expected for this species, including extensive freshwater rearing of up to two years. This evidence shows that a ‘freshwater-type’ of juvenile American shad exists as year-round or transient residents in the Columbia River basin. The ecological role of this life history variant within the fish community is unknown.

  19. Bilateral giant juvenile fibroadenomas of the breasts—a rare indication for bilateral skin reducing mastectomy

    PubMed Central

    Neto, Francisco Laitano; Zerwes, Felipe Pereira

    2016-01-01

    Fibroadenoma is the most common benign tumor of the breast but giant juvenile fibroadenoma represent only 0.5% of all fibroadenomas and when bilateral are much more rare. We describe the case of a 25 years old girl that presented with bilateral giant juvenile fibroadenomas and was treated by bilateral skin reducing mastectomy using the inferior dermal flap, implant, and free nipple graft. PMID:27563567

  20. Imaging of juvenile idiopathic arthritis. Part I: Clinical classifications and radiographs

    PubMed Central

    Matuszewska, Genowefa; Gietka, Piotr; Płaza, Mateusz; Walentowska-Janowicz, Marta

    2016-01-01

    Juvenile idiopathic arthritis is the most common autoimmune systemic disease of the connective tissue affecting individuals at the developmental age. Radiography is the primary modality employed in the diagnostic imaging in order to identify changes typical of this disease entity and rule out other bone-related pathologies, such as neoplasms, posttraumatic changes, developmental defects and other forms of arthritis. The standard procedure involves the performance of comparative joint radiographs in two planes. Radiographic changes in juvenile idiopathic arthritis are detected in later stages of the disease. Bone structures are assessed in the first place. Radiographs can also indirectly indicate the presence of soft tissue inflammation (i.e. in joint cavities, sheaths and bursae) based on swelling and increased density of the soft tissue as well as dislocation of fat folds. Signs of articular cartilage defects are also seen in radiographs indirectly – based on joint space width changes. The first part of the publication presents the classification of juvenile idiopathic arthritis and discusses its radiographic images. The authors list the affected joints as well as explain the spectrum and specificity of radiographic signs resulting from inflammatory changes overlapping with those caused by the maturation of the skeletal system. Moreover, certain dilemmas associated with the monitoring of the disease are reviewed. The second part of the publication will explain issues associated with ultrasonography and magnetic resonance imaging, which are more and more commonly applied in juvenile idiopathic arthritis for early detection of pathological features as well as the disease complications. PMID:27679726

  1. Giant juvenile fibroadenoma: a systematic review with diagnostic and treatment recommendations

    PubMed Central

    Pulcrano, Marisa; Feldman, Elizabeth D.; Patel, Ketan M.; Nahabedian, Maurice Y.; Weissler, Jason M.; Rodriguez, Eduardo D.

    2015-01-01

    Background Currently, there is a lack of clear guidelines regarding evaluation and management of giant juvenile fibroadenomas. The purpose of this study was to conduct a systematic review of giant juvenile fibroadenomas and to evaluate the most common diagnostic and therapeutic modalities. Methods A systematic literature search of PubMed and MEDLINE databases was conducted in February 2014 to identify articles related to giant juvenile fibroadenomas. Pooled outcomes are reported. Results Fifty-two articles (153 patients) met inclusion criteria. Mean age was 16.7 years old, with a mean lesion size of 11.2 cm. Most patients (86%) presented with a single breast mass. Imaging modalities included ultrasound in 72.5% and mammography in 26.1% of cases. Tissue diagnosis was obtained using a core needle biopsy in 18.3% of cases, fine-needle aspiration (FNA) in 25.5%, and excisional biopsy in 11.1% of patients. Surgical treatment was implemented in 98.7% of patients (mean time to treatment of 9.5 months, range, 3 days to 7 years). Surgical intervention included excision in all cases, of which four were mastectomies. Breast reconstruction was completed in 17.6% of cases. There were no postoperative complications. Conclusions Diagnosis and treatment of giant juvenile fibroadenoma is heterogeneous. There is a paucity of data to support observation and non-operative treatment. The most common diagnostic modalities include core needle or excisional biopsy. The mainstay of treatment is complete excision with an emphasis on preserving the developing breast parenchyma and nipple areolar complex. Breast reconstruction is uncommon, but may be necessary in certain cases. PMID:26312217

  2. Renewing Juvenile Justice

    ERIC Educational Resources Information Center

    Macallair, Daniel; Males, Mike; Enty, Dinky Manek; Vinakor, Natasha

    2011-01-01

    The Center on Juvenile and Criminal Justice (CJCJ) was commissioned by Sierra Health Foundation to critically examine California's juvenile justice system and consider the potential role of foundations in promoting systemic reform. The information gathered by CJCJ researchers for this report suggests that foundations can perform a key leadership…

  3. Fact Sheet: Juvenile Justice Education

    ERIC Educational Resources Information Center

    Read, N. W.; O'Cummings, M.

    2011-01-01

    Research has demonstrated the correlation between lack of educational attainment and involvement in the juvenile justice system and the importance of education in preventing recidivism. In acknowledgment of the importance of education in the juvenile justice system, more than 2,600 residential juvenile justice facilities report providing education…

  4. Public school segregation and juvenile violent crime arrests in metropolitan areas.

    PubMed

    Eitle, David; Eitle, Tamela McNulty

    2010-01-01

    Previous research has established an association between residential segregation and violent crime in urban America. Our study examines whether school-based segregation is predictive of arrests of juveniles for violent crimes in U.S. metro areas. Using Census, Uniform Crime Report, and Common Core data for 204 metro areas, a measure of school-based racial segregation, Theil's entropy index, is decomposed into two components: between- and within-district segregation. Findings reveal evidence of a significant interaction term: Within-district segregation is inversely associated with arrests for juvenile violence, but only in metropolitan areas with higher than average levels of between-district segregation.

  5. In- and outdoor reproduction of first generation common sole Solea solea under a natural photothermal regime: Temporal progression of sexual maturation assessed by monitoring plasma steroids and gonadotropin mRNA expression.

    PubMed

    Palstra, A P; Blok, M C; Kals, J; Blom, E; Tuinhof-Koelma, N; Dirks, R P; Forlenza, M; Blonk, R J W

    2015-09-15

    Reproduction of many temperate fishes is seasonal and maturation and spawning of gametes are under photothermal control. Reproductive success of first generation (G1) common sole Solea solea in captivity has been low. In this study, the sexual maturation status has been assessed during the prespawning months in G1 sole that were housed (a) outdoor under the natural photoperiod and temperature, or (b) indoor under artificial photothermal induction. Maturation was assessed in male and female G1 broodstock in November as controls, after which the remaining population was divided over two outdoor flow-through tanks placed in a pond and two indoor recirculating aquaculture system (RAS) tanks. Subsequently, maturation status (gonadosomatic index GSI and plasma levels of testosterone T and 17β-estradiol E2) was assessed in one tank for each condition in January, February and during spawning in early April, while fish in the other tank were not disturbed in achieving reproductive success. Quantitative real-time PCR was performed to determine species-specific gonadotropin mRNA expression in females. Successful G1 spawning and egg fertilisation occurred in all experimental tanks. Gonadal development was similar under both conditions. Higher E2 and T levels were found in indoor housed females. Gonadotropin expression revealed similar profiles between outdoor and indoor housed females. G1 sole could be reproduced in the outdoor tanks under the natural photoperiod and in the indoor tanks under artificial simulation of this regime that includes a potentially crucial chilling period of 2-3 months at 5-7 °C. Copyright © 2015 Elsevier Inc. All rights reserved.

  6. Predictors of response to prefabricated foot orthoses or rocker-sole footwear in individuals with first metatarsophalangeal joint osteoarthritis.

    PubMed

    Menz, Hylton B; Auhl, Maria; Tan, Jade M; Levinger, Pazit; Roddy, Edward; Munteanu, Shannon E

    2017-05-12

    Osteoarthritis of the first metatarsophalangeal joint (1st MTPJ OA) is a common and disabling condition commonly managed with footwear and orthotic interventions. The objective of this study was to identify factors associated with a successful treatment response in people with 1st MTPJ OA provided with prefabricated orthoses or rocker-sole footwear as part of a randomised clinical trial. People with 1st MTPJ OA (n = 88) who participated in a randomised trial were allocated to receive prefabricated foot orthoses (n = 47) or rocker-sole footwear (n = 41) and completed a baseline questionnaire including information on demographics, anthropometrics, general health, pain characteristics (including the Foot Health Status Questionnaire [FHSQ] and Foot Function Index [FFI]) and perceptions of the interventions, and a clinical assessment of foot posture, range of motion, radiographic severity and in-shoe plantar pressures. Adherence was documented using diaries. At 12 weeks, participants documented their perception of improvement on a 15-point scale. Those reporting at least moderate improvement on this scale were classified as 'responders'. There were 29 responders (62%) in the orthoses group and 16 responders (39%) in the rocker-sole group. In the orthoses group, responders had greater baseline pain severity while walking, a higher FFI difficulty score, and wore their orthoses more frequently. In the rocker-sole group, responders had a higher FFI stiffness score and greater radiographic severity. However, the accuracy of these variables in identifying responders in each group was modest (62 and 53%, respectively). The response to prefabricated orthoses or rocker-sole footwear in people with 1st MTPJ OA is related to measures of increased pain and disease severity. However, the overall classification accuracy associated with these factors is not sufficient for identifying individuals who are most likely to benefit from these interventions. Australian New

  7. Telepsychiatry in juvenile justice settings.

    PubMed

    Kaliebe, Kristopher E; Heneghan, James; Kim, Thomas J

    2011-01-01

    Telepsychiatry is emerging as a valuable means of providing mental health care in juvenile justice settings. Youth in the juvenile justice system have high levels of psychiatric morbidity. State and local juvenile justice systems frequently struggle to provide specialized psychiatric care, as these systems have limited resources and often operate in remote locations. Case studies in the use of telepsychiatry to provide improved care in juvenile corrections in 4 states are described, along with a review of advantages and disadvantages of telepsychiatry in these settings. Copyright © 2011 Elsevier Inc. All rights reserved.

  8. Juvenile hyperthyroidism: an experience.

    PubMed

    Bhadada, S; Bhansali, A; Velayutham, P; Masoodi, S R

    2006-04-01

    To analyze the clinical profile of juvenile hyperthyroidism at presentation, their treatment outcome; predictors of remission and relapse. Retrospective analysis of medical records of 56 patients with juvenile hyperthyroidism seen over a period of 16 years. A cohort of 38 females and 18 males with mean (+/-SD) age of 14.9 +/- 3.4 years (range 3 to 18 years) was analyzed. Majority of patients was in the age group of 12-16 years. Common symptoms observed at presentation were weight loss (82.1%), excessive sweating (78.6%), heat intolerance (76.8%), increased appetite (73.2%) and diarrhea in 48.2%. In addition, accelerated linear growth was observed in 7.1% of patients. Goiter was present in 98.2% of children; 94.5% of which was diffuse and 4.8% was multinodular. The mean ((+/-SD) T3 was 4.8 +/- 3.4 ng/mL (N, 0.6-1.6), T4 was 218 +/- 98 ng/mL (N, 60-155) and TSH was 0.44 +/- 0.36 (N, 0.5-5.5 microIU/mL). TMA positivity seen in 36.9% of patients. All patients were treated with carbimazole; subsequently 4 patients required thyroidectomy and one required radioactive iodine ablation. Mean (+/-SD) duration of follow-up in our patients was 4.9 +/- 3 years, ranging between 1.6 to 16 years and mean (+/-SD) duration of treatment was 34.4 +/- 22.6 months (range 12 to 120 months). Mean (+/-SD) duration to achieve euthyroidism was 5.2 +/- 4.7 months, ranging between 1-33 months. On intention to treat analysis, remission with carbimazole was achieved in 47.6%, remaining patients failed to achieve remission with drug treatment. Graves disease is the commonest cause of juvenile hyperthyroidism. Carbimazole is safe, effective, cheap, and easily available form of therapy. It is occasionally associated with serious side effects but requires prolonged follow up.

  9. Modeled connectivity between northern rock sole (Lepidopsetta polyxystra) spawning and nursery areas in the eastern Bering Sea

    NASA Astrophysics Data System (ADS)

    Cooper, D. W.; Duffy-Anderson, J. T.; Stockhausen, W. T.; Cheng, W.

    2013-11-01

    Connectivity between spawning and potential nursery areas of northern rock sole, Lepidopsetta polyxystra, in the eastern Bering Sea was examined using an individual-based biophysical-coupled model. Presumed spawning areas were identified using historical field-collected ichthyoplankton data, and nursery habitats were characterized based on previously described settlement areas. Simulated larvae were released from spawning areas near the Pribilof Islands, south of the Pribilof Islands along the outer continental shelf, on the north side of the Alaska Peninsula, and in the Gulf of Alaska south of Unimak Island. Simulated larvae were transported along two general pathways: 1) northwards along the outer continental shelf from Unimak Island towards the Pribilof Islands and further north offshore of mainland Alaska, and 2) eastward along the Alaska Peninsula. At the end of the 2-month simulation, drift pathways placed pre-settlement stage larvae offshore of known nursery areas of older juveniles near mainland Alaska, consistent with a hypothesis that initial settlement may be followed by substantial post-settlement redistribution.

  10. Examining the Influence of Ethnic/Racial Socialization on Aggressive Behaviors Among Juvenile Offenders

    PubMed Central

    Zapolski, Tamika C. B.; Garcia, Crystal A.; Jarjoura, G. Roger; Lau, Katherine S. L.; Aalsma, Matthew C.

    2016-01-01

    Risk assessment instruments are commonly used within the juvenile justice system to estimate a juvenile's likelihood of reoffending or engaging in aggressive or violent behavior. Although such instruments assess a broad range of factors, the influence of culture is often excluded. The current study examines the unique effect of ethnic/racial socialization on recent aggressive behaviors above and beyond three well-established risk and protective factors: delinquency history, moral disengagement, and social support. Participants were 95 juveniles who were either on probation or in detention centers in three Midwestern counties and who completed structured surveys related to personal experiences within and outside of the juvenile justice system. The findings provided partial support for our hypotheses: Consistent with previous findings, delinquency history and moral disengagement were significant predictors of recent aggressive behavior. Furthermore, when ethnic/racial socialization was added to the model, promotion of mistrust provided additional predictive validity for aggressive behavior above and beyond the other factors assessed. Based on these findings, the inclusion of education on culture may prove to be an important supplement to established intervention tools for juvenile offenders. PMID:27453798

  11. Skeletal manifestations of juvenile hypothyroidism and the impact of treatment on skeletal system.

    PubMed

    Gutch, Manish; Philip, Rajeev; Philip, Renjit; Toms, Ajit; Saran, Sanjay; Gupta, K K

    2013-10-01

    Thyroid hormone mediates growth and development of the skeleton through its direct effects and through its permissive effects on growth hormone. The effect of hypothyroidism on bone is well described in congenital hypothyroidism, but the impact of thyroid hormone deficiency on a growing skeleton, as it happens with juvenile hypothyroidism, is less defined. In addition, the extent to which the skeletal defects of juvenile hypothyroidism revert on the replacement of thyroid hormone is not known. A study was undertaken in 29 juvenile autoimmune hypothyroid patients to study the skeletal manifestations of juvenile hypothyroidism and the impact of treatment of hypothyroidism on the skeletal system of juvenile patients. Hypothyroidism has a profound impact on the skeletal system and delayed bone age, dwarfism, and thickened bands at the metaphyseal ends being the most common findings. Post treatment, skeletal findings like delayed bone age and dwarfism improved significantly, but there were no significant changes in enlargement of sella, presence of wormian bones, epihyseal dysgenesis, vertebral changes and thickened band at the metaphyseal ends. With the treatment of hypothyroidism, there is an exuberant advancement of bone age, the catch up of bone age being approximately double of the chronological age advancement.

  12. Feeding Behaviour, Swimming Activity and Boldness Explain Variation in Feed Intake and Growth of Sole (Solea solea) Reared in Captivity

    PubMed Central

    Mas-Muñoz, Julia; Komen, Hans; Schneider, Oliver; Visch, Sander W.; Schrama, Johan W.

    2011-01-01

    The major economic constraint for culturing sole (Solea solea) is its slow and variable growth. The objective was to study the relationship between feed intake/efficiency, growth, and (non-) feeding behaviour of sole. Sixteen juveniles with an average (SD) growth of 2.7 (1.9) g/kg0.8/d were selected on their growth during a 4-week period in which they were housed communally with 84 other fish. Selected fish were housed individually during a second 4-week period to measure individual feed intake, growth, and behaviour. Fish were hand-fed three times a day during the dark phase of the day until apparent satiation. During six different days, behaviour was recorded twice daily during 3 minutes by direct observations. Total swimming activity, frequency of burying and of escapes were recorded. At the beginning and end of the growth period, two sequential behavioural tests were performed: “Novel Environment” and “Light Avoidance”. Fish housed individually still exhibited pronounced variation in feed intake (CV = 23%), growth (CV = 25%) and behavior (CV = 100%). Differences in feed intake account for 79% of the observed individual differences in growth of sole. Fish with higher variation in feed intake between days and between meals within days had significantly a lower total feed intake (r = −0.65 and r = −0.77) and growth. Active fish showed significantly higher feed intake (r = 0.66) and growth (r = 0.58). Boldness during both challenge tests was related to fast growth: (1) fish which reacted with a lower latency time to swim in a novel environment had significantly higher feed intake (r = −0.55) and growth (r = −0.66); (2) fish escaping during the light avoidance test tended to show higher feed intake (P<0.1) and had higher growth (P<0.05). In conclusion, feeding consistency, swimming activity in the tank, and boldness during behavioral tests are related to feed intake and growth of sole in captivity. PMID:21738651

  13. Feeding behaviour, swimming activity and boldness explain variation in feed intake and growth of sole (Solea solea) reared in captivity.

    PubMed

    Mas-Muñoz, Julia; Komen, Hans; Schneider, Oliver; Visch, Sander W; Schrama, Johan W

    2011-01-01

    The major economic constraint for culturing sole (Solea solea) is its slow and variable growth. The objective was to study the relationship between feed intake/efficiency, growth, and (non-) feeding behaviour of sole. Sixteen juveniles with an average (SD) growth of 2.7 (1.9) g/kg(0.8)/d were selected on their growth during a 4-week period in which they were housed communally with 84 other fish. Selected fish were housed individually during a second 4-week period to measure individual feed intake, growth, and behaviour. Fish were hand-fed three times a day during the dark phase of the day until apparent satiation. During six different days, behaviour was recorded twice daily during 3 minutes by direct observations. Total swimming activity, frequency of burying and of escapes were recorded. At the beginning and end of the growth period, two sequential behavioural tests were performed: "Novel Environment" and "Light Avoidance". Fish housed individually still exhibited pronounced variation in feed intake (CV = 23%), growth (CV = 25%) and behavior (CV = 100%). Differences in feed intake account for 79% of the observed individual differences in growth of sole. Fish with higher variation in feed intake between days and between meals within days had significantly a lower total feed intake (r = -0.65 and r = -0.77) and growth. Active fish showed significantly higher feed intake (r = 0.66) and growth (r = 0.58). Boldness during both challenge tests was related to fast growth: (1) fish which reacted with a lower latency time to swim in a novel environment had significantly higher feed intake (r = -0.55) and growth (r = -0.66); (2) fish escaping during the light avoidance test tended to show higher feed intake (P<0.1) and had higher growth (P<0.05). In conclusion, feeding consistency, swimming activity in the tank, and boldness during behavioral tests are related to feed intake and growth of sole in captivity.

  14. Treatment of juvenile xanthogranuloma.

    PubMed

    Stover, Daniel G; Alapati, Srilatha; Regueira, Osvaldo; Turner, Curtis; Whitlock, James A

    2008-07-01

    Juvenile xanthogranuloma (JXG) is generally a benign, self-limited histiocytic disorder of the skin. We report two cases of multisystem JXG presenting with clinical features more commonly seen in Langerhans cell histiocytosis (LCH), including diabetes insipidus and lytic bony lesions. Histologically, the skin lesions demonstrated a histiocytic dermal infiltrate that stained for CD-68, but S-100 and CD1a stains were negative. Treatment according to LCH-based chemotherapy regimens resulted in prompt resolution of symptoms. A literature review of multisystem JXG cases treated with chemotherapy suggests that symptomatic patients can successfully be treated with LCH-based regimens that include both corticosteroids and vinca alkaloids. (c) 2008 Wiley-Liss, Inc.

  15. Juvenile sex offenders: Personality profile, coping styles and parental care.

    PubMed

    Margari, Francesco; Lecce, Paola Alessandra; Craig, Francesco; Lafortezza, Elena; Lisi, Andrea; Pinto, Floriana; Stallone, Valentina; Pierri, Grazia; Pisani, Rossella; Zagaria, Giuseppina; Margari, Lucia; Grattagliano, Ignazio

    2015-09-30

    In recent years, there has been an increasing interest in juvenile sex offenders showing that this population is highly heterogeneous. The aim of the present study was to identify possible different profiles that could help understand the motivation behind offending, comparing 31 Juvenile Sexual Offenders (JSOs), 31 Juvenile Sexual Non Offenders (JSNOs) and 31 Juvenile Non Offenders (Control Group). A data collection form, the Minnesota Multiphasic Personality Inventory-Adolescent (MMPI-A) or Minnesota Multiphasic Personality Inventory-2 (MMPI-2), the Coping Inventory for Stressful Situations (CISS) and the Parental Bonding Inventory (PBI) were administered to all participants. The results show that JSOs differs from JNSOs in some domains, such as living in single-parent homes, while maintain some common aspects such as academic failure and previous sexual intercourse. Moreover, JNSOs showed more abnormal personality traits, such as Authority Problems, MacAndrew Alcoholism, Acknowledgement and Alcohol-Drug Problem Proneness compared to JSOs and the Control Group, while JSOs and JNSOs use a coping strategy more oriented to Avoidance and Distraction compared to the Control group. Finally, JSOs described the relationships with fathers characterized by higher care and protection than JNSOs. These findings provide additional evidence with respect the prevention and treatment of criminal sexual behavior in adolescent. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  16. takeout-dependent longevity is associated with altered Juvenile Hormone signaling

    PubMed Central

    Chamseddin, Khalil H.; Khan, Sabina Q.; Nguyen, Mai L.H.; Antosh, Michael; Morris, Siti Nur Sarah; Kolli, Santharam; Neretti, Nicola; Helfand, Stephen L.; Bauer, Johannes H.

    2012-01-01

    In order to understand the molecular mechanisms of longevity regulation, we recently performed a screen designed to enrich for genes common to several longevity interventions. Using this approach, we identified the Drosophila melanogaster gene takeout. takeout is upregulated in a variety of long-lived flies, and extends life span when overexpressed. Here, we investigate the mechanisms of takeout-dependent longevity. takeout overexpression specifically in the fat body is sufficient to increase fly longevity and is additive to the longevity effects of dietary restriction. takeout long-lived flies do not show phenotypes often associated with increased longevity, such as enhanced stress resistance or major metabolic abnormalities. However, males exhibit greatly diminished courtship behavior, leading to a reduction in fertility. Interestingly, takeout contains a binding domain for Juvenile Hormone, a fly hormone that plays a role in the regulation of developmental transitions. Importantly, the longevity and courtship phenotypes of takeout overexpressing flies are reversed by treatment with the Juvenile Hormone analog methoprene. These data suggest that takeout is a key player in the tradeoff-switch between fertility and longevity. takeout may control fertility via modulation of courtship behavior. This regulation may occur through Juvenile Hormone binding to takeout and a subsequent reduction in Juvenile Hormone signaling activity. PMID:22940452

  17. The challenges of the first migration: movement and behaviour of juvenile vs. adult white storks with insights regarding juvenile mortality.

    PubMed

    Rotics, Shay; Kaatz, Michael; Resheff, Yehezkel S; Turjeman, Sondra Feldman; Zurell, Damaris; Sapir, Nir; Eggers, Ute; Flack, Andrea; Fiedler, Wolfgang; Jeltsch, Florian; Wikelski, Martin; Nathan, Ran

    2016-07-01

    Migration conveys an immense challenge, especially for juvenile birds coping with enduring and risky journeys shortly after fledging. Accordingly, juveniles exhibit considerably lower survival rates compared to adults, particularly during migration. Juvenile white storks (Ciconia ciconia), which are known to rely on adults during their first fall migration presumably for navigational purposes, also display much lower annual survival than adults. Using detailed GPS and body acceleration data, we examined the patterns and potential causes of age-related differences in fall migration properties of white storks by comparing first-year juveniles and adults. We compared juvenile and adult parameters of movement, behaviour and energy expenditure (estimated from overall dynamic body acceleration) and placed this in the context of the juveniles' lower survival rate. Juveniles used flapping flight vs. soaring flight 23% more than adults and were estimated to expend 14% more energy during flight. Juveniles did not compensate for their higher flight costs by increased refuelling or resting during migration. When juveniles and adults migrated together in the same flock, the juvenile flew mostly behind the adult and was left behind when they separated. Juveniles showed greater improvement in flight efficiency throughout migration compared to adults which appears crucial because juveniles exhibiting higher flight costs suffered increased mortality. Our findings demonstrate the conflict between the juveniles' inferior flight skills and their urge to keep up with mixed adult-juvenile flocks. We suggest that increased flight costs are an important proximate cause of juvenile mortality in white storks and likely in other soaring migrants and that natural selection is operating on juvenile variation in flight efficiency. © 2016 The Authors. Journal of Animal Ecology © 2016 British Ecological Society.

  18. National Implications in Juvenile Justice: The Influence of Juvenile Mentoring Programs on At Risk Youth.

    ERIC Educational Resources Information Center

    Belshaw, Scott H.; Kritsonis, William Allan

    2007-01-01

    In 1972 the federal government created the Juvenile Justice Delinquency Prevention Act that procured funding for various governmental programs to combat the sudden increase in juvenile crime. A provision of this Act set out the creation of mentoring programs to help decrease the juvenile crime rate and dropout rates in secondary schools. This…

  19. Genetics Home Reference: juvenile myoclonic epilepsy

    MedlinePlus

    ... Home Health Conditions Juvenile myoclonic epilepsy Juvenile myoclonic epilepsy Printable PDF Open All Close All Enable Javascript ... view the expand/collapse boxes. Description Juvenile myoclonic epilepsy is a condition characterized by recurrent seizures (epilepsy). ...

  20. The Impact of Juvenile Coxsackievirus Infection on Cardiac Progenitor Cells and Postnatal Heart Development

    PubMed Central

    Sin, Jon; Puccini, Jenna M.; Huang, Chengqun; Konstandin, Mathias H.; Gilbert, Paul E.; Sussman, Mark A.; Gottlieb, Roberta A.; Feuer, Ralph

    2014-01-01

    Coxsackievirus B (CVB) is an enterovirus that most commonly causes a self-limited febrile illness in infants, but cases of severe infection can manifest in acute myocarditis. Chronic consequences of mild CVB infection are unknown, though there is an epidemiologic association between early subclinical infections and late heart failure, raising the possibility of subtle damage leading to late-onset dysfunction, or chronic ongoing injury due to inflammatory reactions during latent infection. Here we describe a mouse model of juvenile infection with a subclinical dose of coxsackievirus B3 (CVB3) which showed no evident symptoms, either immediately following infection or in adult mice. However following physiological or pharmacologically-induced cardiac stress, juvenile-infected adult mice underwent cardiac hypertrophy and dilation indicative of progression to heart failure. Evaluation of the vasculature in the hearts of adult mice subjected to cardiac stress showed a compensatory increase in CD31+ blood vessel formation, although this effect was suppressed in juvenile-infected mice. Moreover, CVB3 efficiently infected juvenile c-kit+ cells, and cardiac progenitor cell numbers were reduced in the hearts of juvenile-infected adult mice. These results suggest that the exhausted cardiac progenitor cell pool following juvenile CVB3 infection may impair the heart's ability to increase capillary density to adapt to increased load. PMID:25079373

  1. Mental Illness and Juvenile Offenders

    PubMed Central

    Underwood, Lee A.; Washington, Aryssa

    2016-01-01

    Within the past decade, reliance on the juvenile justice system to meet the needs of juvenile offenders with mental health concerns has increased. Due to this tendency, research has been conducted on the effectiveness of various intervention and treatment programs/approaches with varied success. Recent literature suggests that because of interrelated problems involved for youth in the juvenile justice system with mental health issues, a dynamic system of care that extends beyond mere treatment within the juvenile justice system is the most promising. The authors provide a brief overview of the extent to which delinquency and mental illness co-occur; why treatment for these individuals requires a system of care; intervention models; and the juvenile justice systems role in providing mental health services to delinquent youth. Current and future advancements and implications for practitioners are provided. PMID:26901213

  2. [Juvenile idiopathic arthritis with dry synovitis: clinical case and review of literature].

    PubMed

    Dias, Bruno Leonardo Scofano; Imamura, Erica Ueno; Izumi, Ana Paula; Pinheiro, Lúcia Virgínia de Melo; Borigato, Eliana Valverde Magro

    2009-01-01

    Juvenile idiopathic arthritis is a term that encompasses all forms of arthritis that begin before the age of 16 years, persist for more than 6 weeks and are of unknown cause. Dry synovitis is still not completely understood nor commonly described. It is associated with juvenile idiopathic arthritis and must be considered in patients with minimal swelling but pain and stiffness along with flexion contractures as well as other evidence of an inflammatory process (lab changes and/or other symptoms, such as uveitis or rash), and often follow a destructive course. The authors present a case of a brazilian child with a rheumatoid factor- negative polyarthritis compatible with the subtype dry synovitis, who had great clinical and functional improvement after participation in rehabilitation activities and beginning of pharmacological treatment usually used in Juvenile idiopathic arthritis, including immunossuppressive therapy.

  3. Chronic pathology and longevity of Drepanocephalus spathans infections in juvenile channel catfish

    USDA-ARS?s Scientific Manuscript database

    Drepanocephalus spathans (Digenea: Echinostomatidae) is a common parasite of the double-crested cormorant (Phalacrocorax auritus). The cercariae of D. spathans have been shown infective to juvenile channel catfish (Ictalurus punctatus). The developing metacercariae concentrate in the cranial regio...

  4. Juvenile Hormone Induction of Esterases: A Mechanism for the Regulation of Juvenile Hormone Titer

    PubMed Central

    Whitmore, Donald; Whitmore, Elaine; Gilbert, Lawrence I.

    1972-01-01

    Within a few hours after injection of juvenile hormone into Hyalophora gloveri pupae, several fast-migrating carboxylesterases (EC 3.1.1.1) that are sensitive to diisopropylfluorophosphate appear in the hemolymph. Treatment of the pupae with puromycin or actinomycin D prevents the appearance of these hemolymph enzymes, suggesting de novo synthesis of the carboxylesterases. Of the several other compounds investigated, only a potent mimic of the juvenile hormone is able to induce these enzymes. When the induced enzymes are incubated in vitro with 14C-labeled juvenile hormone, the hormone is rapidly and efficiently degraded. It is suggested that these induced carboxylesterases play an important role in the regulation of juvenile hormone titer. Images PMID:4504374

  5. Juvenile Delinquency: An Introduction

    ERIC Educational Resources Information Center

    Smith, Carolyn A.

    2008-01-01

    Juvenile Delinquency is a term which is often inaccurately used. This article clarifies definitions, looks at prevalence, and explores the relationship between juvenile delinquency and mental health. Throughout, differences between males and females are explored. (Contains 1 table.)

  6. Outbreak of common midwife toad virus in alpine newts (Mesotriton alpestris cyreni) and common midwife toads (Alytes obstetricans) in northern Spain: a comparative pathological study of an emerging ranavirus.

    PubMed

    Balseiro, Ana; Dalton, Kevin P; del Cerro, Ana; Márquez, Isabel; Parra, Francisco; Prieto, José M; Casais, R

    2010-11-01

    This report describes the isolation and characterisation of the common midwife toad virus (CMTV) from juvenile alpine newts (Mesotriton alpestris cyreni) and common midwife toad (CMT) tadpoles (Alytes obstetricans) in the Picos de Europa National Park in Northern Spain in August 2008. A comparative pathological and immunohistochemical study was carried out using anti-CMTV polyclonal serum. In the kidneys, glomeruli had the most severe histological lesions in CMT tadpoles, while both glomeruli and renal tubular epithelial cells exhibited foci of necrosis in juvenile alpine newts. Viral antigens were detected by immunohistochemical labelling mainly in the kidneys of CMT tadpoles and in ganglia of juvenile alpine newts. This is the first report of ranavirus infection in the alpine newt, the second known species to be affected by CMTV in the past 2 years. Copyright © 2009 Elsevier Ltd. All rights reserved.

  7. Response of slimy sculpins to predation by juvenile lake trout in southern Lake Ontario

    USGS Publications Warehouse

    Owens, Randall W.; Bergstedt, Roger A.

    1994-01-01

    Abundance and biomass of slimy sculpin Cottus cognatus declined in Lake Ontario at depths most frequently occupied by juvenile lake trout Salvelinus namaycush (<70 m), but not at greater depths, during 1980–1987. The abundance of juvenile lake trout increased at depths less than 70 m between 1980 and 1987, and slimy sculpin abundance was negatively correlated with lake trout abundance. The size of slimy sculpins caught at depths less than 70 m decreased between 1980 and 1987, fish 50–99 mm becoming less common and fish 100 mm or longer becoming rare. The size of slimy sculpins at depths greater than 70 m did not change, Because slimy sculpins are the principal fish eaten by juvenile lake trout, and because juvenile lake trout were most abundant at depths where the greatest changes in the slimy sculpin population took place, we conclude that juvenile lake trout in Lake Ontario altered the slimy sculpin population. No significant negative correlations were found between abundance of slimy sculpins and those of the two most abundant fishes in Lake Ontario: Alewife Alosa pseudoharengus and rainbow smeltOsmerus mordax.

  8. Assessment of Barotrauma from Rapid Decompression of Depth-Acclimated Juvenile Chinook Salmon Bearing Radiotelemetry Transmitters

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Brown, Richard S.; Carlson, Thomas J.; Welch, Abigail E.

    2009-11-01

    This study investigated the mortality of and injury to juvenile Chinook salmon Oncorhynchus tshawytscha exposed to simulated pressure changes associated with passage through a large Kaplan hydropower turbine. Mortality and injury varied depending on whether a fish was carrying a transmitter, the method of transmitter implantation, the depth of acclimation, and the size of the fish. Juvenile Chinook salmon implanted with radio transmitters were more likely than those without to die or sustain injuries during simulated turbine passage. Gastric transmitter implantation resulted in higher rates of injury and mortality than surgical implantation. Mortality and injury increased with increasing pressure ofmore » acclimation. Injuries were more common in subyearling fish than in yearling fish. Gas emboli in the gills and internal hemorrhaging were the major causes of mortality. Rupture of the swim bladder and emphysema in the fins were also common. This research makes clear that the exposure of juvenile Chinook salmon bearing radiotelemetry transmitters to simulated turbine pressures with a nadir of 8-19 kPa can result in barotrauma, leading to immediate or delayed mortality. The study also identified sublethal barotrauma injuries that may increase susceptibility to predation. These findings have significant implications for many studies that use telemetry devices to estimate the survival and behavior of juvenile salmon as they pass through large Kaplan turbines typical of those within the Columbia River hydropower system. Our results indicate that estimates of turbine passage survival for juvenile Chinook salmon obtained with radiotelemetry devices may be negatively biased.« less

  9. Juvenile Solitary Confinement as a Form of Child Abuse.

    PubMed

    Clark, Andrew B

    2017-09-01

    Placing incarcerated juveniles into solitary confinement continues to occur in certain states of the United States, despite the accumulating evidence that it may cause substantial psychological damage to the teenagers who must endure it. The practice has been widely condemned by professional and human rights organizations, amid a growing appreciation of the immaturity and vulnerability of the adolescent brain. Although several states and the federal government have been successful in abolishing or dramatically reducing the use of juvenile solitary confinement, it remains common practice in many facilities. Clinicians working in correctional facilities where juvenile solitary confinement is employed are therefore faced with difficult questions of ethics, as to how best to balance their competing duties, and how to respond to such state-sanctioned ill treatment of their patients. Given the emerging consensus around the psychological damage wrought by sustained solitary confinement, clinicians may well reach the difficult conclusion that they are both legally mandated and ethically bound to file a report of suspected child abuse. Such a report would be unlikely to be investigated for administrative reasons, but it would allow clinicians to communicate the gravity of their concern effectively. © 2017 American Academy of Psychiatry and the Law.

  10. Police interviewing and interrogation of juvenile suspects: a descriptive examination of actual cases.

    PubMed

    Cleary, Hayley M D

    2014-06-01

    Although empirical attention to police interrogation has gained traction in recent years, comparatively few studies have examined interrogation of juvenile suspects, and virtually none have examined actual interrogations. Despite a growing literature on youths' interrogation-related capacities, we still know very little about what actually transpires when police question youth. The present study examines electronically recorded police interviews with juveniles to describe the characteristics, processes, and outcomes that occur in actual juvenile interrogations, including interview duration, individuals present, and confessions. Fifty-seven electronic recordings from 17 police departments were analyzed using observational research software. The median juvenile interrogation lasted 46 min, though the range was extensive (6 min to nearly 5 hr). Youth frequently submitted to questioning without a parent or advocate present, and disruptions to the interview process were common. Interrogation outcomes varied and included full confessions, partially incriminating admissions, and denials of guilt. Results from this study provide context for interrogation research using other methods and suggest that youth may frequently consent to interrogation in the absence of important legal protections.

  11. Real life juvenile toxicity case studies: the good, the bad and the ugly.

    PubMed

    De Schaepdrijver, Luc; Rouan, Marie-Claude; Raoof, Araz; Bailey, Graham P; De Zwart, Loeckie; Monbaliu, Johan; Coogan, Timothy P; Lammens, Lieve; Coussement, Werner

    2008-09-01

    With the growing experience in the conduct of juvenile toxicity studies for multiple classes of compound, the 'case-by-case' approach has become under much more pressure. Instead, a general screen or 'standard design' is now commonly expected by regulatory authorities with more routine inclusion of neurological and reproductive assessments. Minor modifications or additions can be made to the design to address specific questions according to the class of drug or intended clinical use. This drift from a 'case-by-case' approach to a 'standard design' approach is present within certain reviewing divisions of the FDA, often requesting by default a rodent and non-rodent juvenile animal study. However, juvenile animal studies should be designed thoughtfully to fulfil a purpose based on scientific rationale, with each endpoint carefully considered in terms of practicality and interpretability of data generated. Only when using the appropriate strategy and design may juvenile studies add value by (1) identifying potential safety or pharmacokinetic issues for drugs intended for paediatric use, (2) suggesting additional clinical endpoints and (3) adding new information to the product label. As the knowledge from juvenile animal studies in various species grows, a better understanding of the significance/relevance of findings will be achieved.

  12. Counseling Juvenile Offenders in Institutional Settings.

    ERIC Educational Resources Information Center

    Chaneles, Sol, Ed.

    1982-01-01

    Reviews several aspects of counseling services for institutionalized juvenile offenders. The six articles include studies on the functional analysis of behavior in detention, vocational and social rehabilitation, the impact of a juvenile awareness program on personality traits, and the effectiveness of a juvenile transition center. (JAC)

  13. Miranda Rights: Implications for Juveniles with Disabilities

    ERIC Educational Resources Information Center

    Katsiyannis, Antonis; Barrett, David E.; Losinski, Mickey L.

    2011-01-01

    Juvenile delinquency in the United States has been a persistent concern for decades. Consequently, because more juveniles have been referred to juvenile court and the arrest rate of preteen offenders has increased to almost three times that of older youth, the persistent and often controversial issue of the capacity of juvenile offenders to waive…

  14. Juvenile morphology in baleen whale phylogeny.

    PubMed

    Tsai, Cheng-Hsiu; Fordyce, R Ewan

    2014-09-01

    Phylogenetic reconstructions are sensitive to the influence of ontogeny on morphology. Here, we use foetal/neonatal specimens of known species of living baleen whales (Cetacea: Mysticeti) to show how juvenile morphology of extant species affects phylogenetic placement of the species. In one clade (sei whale, Balaenopteridae), the juvenile is distant from the usual phylogenetic position of adults, but in the other clade (pygmy right whale, Cetotheriidae), the juvenile is close to the adult. Different heterochronic processes at work in the studied species have different influences on juvenile morphology and on phylogenetic placement. This study helps to understand the relationship between evolutionary processes and phylogenetic patterns in baleen whale evolution and, more in general, between phylogeny and ontogeny; likewise, this study provides a proxy how to interpret the phylogeny when fossils that are immature individuals are included. Juvenile individuals in the peramorphic acceleration clades would produce misleading phylogenies, whereas juvenile individuals in the paedomorphic neoteny clades should still provide reliable phylogenetic signals.

  15. Juvenile Offender Corrections Study.

    ERIC Educational Resources Information Center

    Michigan State Council on Vocational Education, Lansing.

    The vocational education programs offered in Michigan's juvenile corrections institutions were reviewed. Information was collected from the following sources: review of student outcomes; student and teacher surveys; and team reviews and surveys of students at two residential training schools for juveniles (Maxley and Adrian training schools); site…

  16. 31 CFR 515.546 - Accounts of Cuban sole proprietorships.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Accounts of Cuban sole proprietorships. 515.546 Section 515.546 Money and Finance: Treasury Regulations Relating to Money and Finance... proprietorships. Specific licenses are issued unblocking sole proprietorships established under the laws of Cuba...

  17. 31 CFR 515.546 - Accounts of Cuban sole proprietorships.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Accounts of Cuban sole proprietorships. 515.546 Section 515.546 Money and Finance: Treasury Regulations Relating to Money and Finance... proprietorships. Specific licenses are issued unblocking sole proprietorships established under the laws of Cuba...

  18. 31 CFR 515.546 - Accounts of Cuban sole proprietorships.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Accounts of Cuban sole proprietorships. 515.546 Section 515.546 Money and Finance: Treasury Regulations Relating to Money and Finance... proprietorships. Specific licenses are issued unblocking sole proprietorships established under the laws of Cuba...

  19. 31 CFR 515.546 - Accounts of Cuban sole proprietorships.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Accounts of Cuban sole proprietorships. 515.546 Section 515.546 Money and Finance: Treasury Regulations Relating to Money and Finance... proprietorships. Specific licenses are issued unblocking sole proprietorships established under the laws of Cuba...

  20. Juvenile Residential Facility Census, 2010: Selected Findings. Juvenile Offenders and Victims: National Report Series. Bulletin NCJ 241134

    ERIC Educational Resources Information Center

    Hockenberry, Sarah; Sickmund, Melissa; Sladky, Anthony

    2013-01-01

    This bulletin is part of the "Juvenile Offenders and Victims National Report Series." The "National Report" offers a comprehensive statistical overview of the problems of juvenile crime, violence, and victimization and the response of the juvenile justice system. During each interim year, the bulletins in the "National…

  1. 31 CFR 800.223 - Solely for the purpose of passive investment.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Solely for the purpose of passive..., ACQUISITIONS, AND TAKEOVERS BY FOREIGN PERSONS Definitions § 800.223 Solely for the purpose of passive investment. Ownership interests are held or acquired solely for the purpose of passive investment if the...

  2. Juvenile Confinement in Context

    ERIC Educational Resources Information Center

    Mendel, Richard A.

    2012-01-01

    For more than a century, the predominant strategy for the treatment and punishment of serious and sometimes not-so-serious juvenile offenders in the United States has been placement into large juvenile corrections institutions, alternatively known as training schools, reformatories, or youth corrections centers. America's heavy reliance on…

  3. Juvenile Angiofibroma: Evolution of Management

    PubMed Central

    Nicolai, Piero; Schreiber, Alberto; Bolzoni Villaret, Andrea

    2012-01-01

    Juvenile angiofibroma is a rare benign lesion originating from the pterygopalatine fossa with distinctive epidemiologic features and growth patterns. The typical patient is an adolescent male with a clinical history of recurrent epistaxis and nasal obstruction. Although the use of nonsurgical therapies is described in the literature, surgery is currently considered the ideal treatment for juvenile angiofibroma. Refinement in preoperative embolization has provided significant reduction of complications and intraoperative bleeding with minimal risk of residual disease. During the last decade, an endoscopic technique has been extensively adopted as a valid alternative to external approaches in the management of small-intermediate size juvenile angiofibromas. Herein, we review the evolution in the management of juvenile angiofibroma with particular reference to recent advances in diagnosis and treatment. PMID:22164185

  4. Performatively Queer: Sole Parent Postgraduates in the Australian Academy

    ERIC Educational Resources Information Center

    Hook, Genine A.

    2015-01-01

    This paper draws on research that considers how gender and agency influence the engagement of sole parent postgraduates within the Australian academy. I argue that parental care responsibilities critically influence participation in higher education for sole parents. I suggest that the gendered construct of caring for children is a feminine…

  5. Tracking Juvenile Recidivists: Three Options for Creating Statewide, Longitudinal Records of Juvenile Offenders.

    ERIC Educational Resources Information Center

    Rooney, Teresa L.

    This document describes three options for a statewide statistical system for tracking recidivism of juvenile delinquents placed outside their homes in treatment programs. The information is intended for use by the state in allocating resources. The options described involve potential use of juvenile court records, placement data, and/or…

  6. Juvenile delinquency, the juvenile courts and the settlement movement 1908-1950: Basil Henriques and Toynbee Hall.

    PubMed

    Bradley, Katharine

    2008-01-01

    This article explores the relationship between the voluntary sector and the juvenile courts in the period c.1908-1950. It specifically examines the relationship between the settlement movement and the early juvenile courts by analysing the Inner London Juvenile Court, which sat at Toynbee Hall in the East End of London between 1929 and 1953. The settlements, which brought young graduates to deprived urban areas to undertake voluntary social work, were heavily involved in boys' clubs. Many of those who began their careers in settlement youth work went on to work with the early juvenile courts, viewing their experience in clubs as a vital foundation for this work. This article focuses on Basil Henriques, a former resident of Toynbee Hall, warden of the Bernhard Baron Settlement in Stepney and magistrate at the Inner London Juvenile Court, and his 1950 book, Indiscretions of a Magistrate. It concludes that, by critically examining Basil Henriques and Indiscretions, it is possible to begin to fully explore the discourses around citizenship, gender, class and race that informed the views and practices of juvenile court magistrates in the period in which the voluntary sector and the welfare state underwent profound change.

  7. Updates on the risk markers and outcomes of severe juvenile idiopathic arthritis-associated uveitis

    PubMed Central

    Angeles-Han, Sheila T; Yeh, Steven; Vogler, Larry B

    2013-01-01

    Uveitis is the most common extra-articular manifestation of juvenile idiopathic arthritis, which is the most common systemic cause of uveitis in children. Known risk factors for uveitis include antinuclear antibody seropositivity, young age of arthritis onset, specific juvenile idiopathic arthritis subtype and short duration of disease. Risk markers for severe ocular disease include gender, age and complications at initial visit. Due to the risk for vision-compromising sequelae such as cataracts, band keratopathy, glaucoma, vision loss and blindness, an understanding of the risk factors for uveitis development and severe ocular disease is crucial to help prevent serious visual disability and complications. This paper reviews the pathogenesis of uveitis, known risk factors for uveitis development and severe visual outcome, and addresses the need for additional biomarkers of uveitis risk, prognosis and remission. PMID:24187594

  8. Suicidal Ideation and Behavior in Youth in the Juvenile Justice System: A Review of the Literature

    PubMed Central

    Stokes, Marquita L.; McCoy, Kathleen P.; Abram, Karen M.; Byck, Gayle R.

    2017-01-01

    Suicide is prevalent among youth, especially those involved in the juvenile justice system. Although many studies have examined suicidal ideation and behavior in delinquent youth, prevalence rates vary widely. This paper reviews studies of suicidal ideation and behavior in youth in the juvenile justice system, focusing on the point of contact: incarceration status and stage of judicial processing. Suicidal ideation and behavior are prevalent, and increase with greater involvement in the juvenile justice system. Depression, sexual abuse, and trauma were the most commonly identified predictors of suicidal ideation and behavior. Prevalence rates of suicidal ideation and behavior vary by gender and race/ethnicity, indicating the need for gender-specific and culturally relevant interventions. PMID:26084946

  9. Suicidal Ideation and Behavior in Youth in the Juvenile Justice System: A Review of the Literature.

    PubMed

    Stokes, Marquita L; McCoy, Kathleen P; Abram, Karen M; Byck, Gayle R; Teplin, Linda A

    2015-07-01

    Suicide is prevalent among youth, especially those involved in the juvenile justice system. Although many studies have examined suicidal ideation and behavior in delinquent youth, prevalence rates vary widely. This article reviews studies of suicidal ideation and behavior in youth in the juvenile justice system, focusing on the point of contact: incarceration status and stage of judicial processing. Suicidal ideation and behavior are prevalent and increase with greater involvement in the juvenile justice system. Depression, sexual abuse, and trauma were the most commonly identified predictors of suicidal ideation and behavior. Prevalence rates of suicidal ideation and behavior vary by gender and race/ethnicity, indicating the need for gender-specific and culturally relevant interventions. © The Author(s) 2015.

  10. On the Prevention of Juvenile Crime

    ERIC Educational Resources Information Center

    Lelekov, V. A.; Kosheleva, E. V.

    2008-01-01

    Crimes committed by juveniles are among the most urgent social problems. Juvenile crime is as prevalent as crime itself is, and it has not been solved completely in any society and cannot be solved through law enforcement measures alone. In this article, the authors discuss the dynamics and structure of juvenile crime in Russia and present data…

  11. Reforming Our Expectations about Juvenile Justice

    ERIC Educational Resources Information Center

    Rodriguez, Pamela F.; Baille, Daphne M.

    2010-01-01

    Typing the term "juvenile justice reform" into a Google[TM] search will result in 60 pages of entries. But what is meant by juvenile justice reform? What does it look like? How will one know when it is achieved? This article defines juvenile justice reform, discusses the principles of effective reform, and describes the practice of…

  12. Juvenile Animal Testing: Assessing Need and Use in the Drug Product Label.

    PubMed

    Baldrick, Paul

    2018-01-01

    Juvenile animal testing has become an established part of drug development to support safe clinical use in the human pediatric population and for eventual drug product label use. A review of European Paediatric Investigation Plan decisions showed that from 2007 to mid-2017, 229 drugs had juvenile animal work requested, almost exclusively incorporating general toxicology study designs, in rat (57.5%), dog (8%), mouse (4.5%), monkey (4%), pig (2%), sheep (1%), rabbit (1%), hamster (0.5%), and species not specified (21.5%). A range of therapeutic areas were found, but the most common areas were infectious diseases (15%), endocrinology (13.5%), oncology (13%), neurology (11%), and cardiovascular diseases (10%). Examination of major clinical indications within these therapeutic areas showed some level of consistency in the species of choice for testing and the pediatric age that required support. Examination of juvenile animal study findings presented in product labels raises questions around how useful the data are to allow prescribing the drug to a child. It is hopeful that the new ICH S11 guideline "Nonclinical Safety Testing in Support of Development of Pediatric Medicines" currently in preparation will aid drug developers in clarifying the need for juvenile animal studies as well as in promoting a move away from toxicology studies with a conventional design. This would permit more focused testing to examine identified areas of toxicity or safety concerns and clarify the presentation/interpretation of juvenile animal study findings for proper risk assessment by a drug prescriber.

  13. Methylphenidate and the Juvenile Brain: Enhancement of Attention at the Expense of Cortical Plasticity?

    PubMed Central

    Urban, Kimberly R.; Gao, Wen-Jun

    2013-01-01

    Methylphenidate (Ritalin) is the most commonly prescribed psychoactive drug for juveniles and adolescents. Used to treat attention-deficit/hyperactivity disorder (ADHD) and for cognitive enhancement in healthy individuals, it has been regarded as a relatively safe medication for the past several decades. However, a thorough review of the literature reveals that the age-dependent activities of the drug, as well as potential developmental effects, are largely ignored. In addition, the diagnosis of ADHD is subjective, leaving open the possibility of misdiagnosis and excessive prescription of the drug. Recent studies have suggested that early life exposure of healthy rodent models to methylphenidate resulted in altered sleep/wake cycle, heightened stress reactivity, and, in fact, a dosage previously thought of as therapeutic depressed neuronal function in juvenile rats. Furthermore, juvenile rats exposed to low-dose methylphenidate displayed alterations in neural markers of plasticity, indicating that the drug might alter the basic properties of prefrontal cortical circuits. In this review of the current literature, we propose that juvenile exposure to methylphenidate may cause abnormal prefrontal function and impaired plasticity in the healthy brain, strengthening the case for developing a more thorough understanding of methylphenidate’s actions on the developing, juvenile brain, as well as better diagnostic measures for ADHD. PMID:24095262

  14. Effects of chronic exposure to tributyltin on tissue-specific cytochrome P450 1 regulation in juvenile common carp.

    PubMed

    Li, Zhi-Hua; Zhong, Li-Qiao; Mu, Wei-Na; Wu, Yan-Hua

    2016-01-01

    1. The purpose of this study was to compare tributyltin (TBT)-induced cytochrome P450 1 (CYP450 1) regulation in liver, gills and muscle of juvenile common carp (Cyprinus carpio). 2. Fish were exposed to sublethal concentrations of TBT (75, 0.75 and 7.5 μg/L) for 60 days. CYP450 1A was measured at the enzyme activity level as 7-ethoxyresorufin-O-deethylase (EROD) activity, as well as the mRNA expression of CYP450 1 family genes (CYP1A, CYP1B, CYP1C1 and CYP1C2) in fish tissues. 3. Based on the results, the liver displayed the highest absolute levels of EROD activity, both under nonexposed and exposed conditions. Additional, EROD activities and CYP1A gene levels showed a good correlation in all three organs. According to the mRNA expression of CYP450 1 family genes, it suggested that CYP1A was to accommodate most EROD activity in fish, but other CYP450 forms also involved in this proceeding. 4. Overall, the study revealed both similarities and differences in the concentration-dependent CYP450 1 responses of the three target organs, which could provide useful information to better understand the mechanisms of TBT-induced bio-toxicity.

  15. Aerobic microbial mineralization of dichloroethene as sole carbon substrate

    USGS Publications Warehouse

    Bradley, P.M.; Chapelle, F.H.

    2000-01-01

    Microorganisms indigenous to the bed sediments of a black- water stream utilized 1,2-dichloroethene (1,2-DCE) as a sole carbon substrate for aerobic metabolism. Although no evidence of growth was observed in the minimal salts culture media used in this study, efficient aerobic microbial mineralization of 1,2-DCE as sole carbon substrate was maintained through three sequential transfers (107 final dilution) of the original environmental innoculum. These results indicate that 1,2-DCE can be utilized as a primary substrate to support microbial metabolism under aerobic conditions.Microorganisms indigenous to the bed sediments of a black-water stream utilized 1,2-dichloroethene (1,2-DCE) as a sole carbon substrate for aerobic metabolism. Although no evidence of growth was observed in the minimal salts culture media used in this study, efficient aerobic microbial mineralization of 1,2-DCE as sole carbon substrate was maintained through three sequential transfers (107 final dilution) of the original environmental innoculum. These results indicate that 1,2-DCE can be utilized as a primary substrate to support microbial metabolism under aerobic conditions.

  16. Trauma-informed juvenile justice systems: A systematic review of definitions and core components.

    PubMed

    Branson, Christopher Edward; Baetz, Carly Lyn; Horwitz, Sarah McCue; Hoagwood, Kimberly Eaton

    2017-11-01

    The U.S. Department of Justice has called for the creation of trauma-informed juvenile justice systems in order to combat the negative impact of trauma on youth offenders and frontline staff. Definitions of trauma-informed care have been proposed for various service systems, yet there is not currently a widely accepted definition for juvenile justice. The current systematic review examined published definitions of a trauma-informed juvenile justice system in an effort to identify the most commonly named core elements and specific interventions or policies. A systematic literature search was conducted in 10 databases to identify publications that defined trauma-informed care or recommended specific practices or policies for the juvenile justice system. We reviewed 950 unique records, of which 10 met criteria for inclusion. The 10 publications included 71 different recommended interventions or policies that reflected 10 core domains of trauma-informed practice. We found 8 specific practice or policy recommendations with relative consensus, including staff training on trauma and trauma-specific treatment, while most recommendations were included in 2 or less definitions. The extant literature offers relative consensus around the core domains of a trauma-informed juvenile justice system, but much less agreement on the specific practices and policies. A logical next step is a review of the empirical research to determine which practices or policies produce positive impacts on outcomes for youth, staff, and the broader agency environment, which will help refine the core definitional elements that comprise a unified theory of trauma-informed practice for juvenile justice. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  17. Juvenile polyposis syndrome

    PubMed Central

    Hsiao, Yi-Han; Wei, Chin-Hung; Chang, Szu-Wen; Chang, Lung; Fu, Yu-Wei; Lee, Hung-Chang; Liu, Hsuan-Liang; Yeung, Chun-Yan

    2016-01-01

    Abstract Background: Juvenile polyposis syndrome, a rare disorder in children, is characterized with multiple hamartomatous polyps in alimentary tract. A variety of manifestations include bleeding, intussusception, or polyp prolapse. In this study, we present an 8-month-old male infant of juvenile polyposis syndrome initially presenting with chronic anemia. To the best of our knowledge, this is the youngest case reported in the literature. Methods: We report a rare case of an 8-month-old male infant who presented with chronic anemia and gastrointestinal bleeding initially. Panendoscopy and abdominal computed tomography showed multiple polyposis throughout the entire alimentary tract leading to intussusception. Technetium-99m-labeled red blood cell (RBC) bleeding scan revealed the possibility of gastrointestinal tract bleeding in the jejunum. Histopathological examination on biopsy samples showed Peutz-Jeghers syndrome was excluded, whereas the diagnosis of juvenile polyposis syndrome was established. Results: Enteroscopic polypectomy is the mainstay of the treatment. However, polyps recurred and occupied the majority of the gastrointestinal tract in 6 months. Supportive management was given. The patient expired for severe sepsis at the age of 18 months. Conclusion: Juvenile polyposis syndrome is an inherited disease, so it is not possible to prevent it. Concerning of its poor outcome and high mortality rate, it is important that we should increase awareness and education of the parents at its earliest stages. PMID:27631205

  18. Juvenile corals can acquire more carbon from high-performance algal symbionts

    NASA Astrophysics Data System (ADS)

    Cantin, N. E.; van Oppen, M. J. H.; Willis, B. L.; Mieog, J. C.; Negri, A. P.

    2009-06-01

    Algal endosymbionts of the genus Symbiodinium play a key role in the nutrition of reef building corals and strongly affect the thermal tolerance and growth rate of the animal host. This study reports that 14C photosynthate incorporation into juvenile coral tissues was doubled in Acropora millepora harbouring Symbiodinium C1 compared with juveniles from common parentage harbouring Symbiodinium D in a laboratory experiment. Rapid light curves performed on the same corals revealed that the relative electron transport rate of photosystem II (rETRMAX) was 87% greater in Symbiodinium C1 than in Symbiodinium D in hospite. The greater relative electron transport through photosystem II of Symbiodinium C1 is positively correlated with increased carbon delivery to the host under the applied experimental conditions ( r 2 = 0.91). This may translate into a competitive advantage for juveniles harbouring Symbiodinium C1 under certain field conditions, since rapid early growth typically limits mortality. Both symbiont types exhibited severe reductions in 14C incorporation during a 10-h exposure to the electron transport blocking herbicide diuron (DCMU), confirming the link between electron transport through PSII and photosynthate incorporation within the host tissue. These findings advance the current understanding of symbiotic relationships between corals and their symbionts, providing evidence that enhanced growth rates of juvenile corals may result from greater translocation of photosynthates from Symbiodinium C1.

  19. Molecular characterization and transcriptional regulation of the renin-angiotensin system genes in Senegalese sole (Solea senegalensis Kaup, 1858): differential gene regulation by salinity.

    PubMed

    Armesto, Paula; Cousin, Xavier; Salas-Leiton, Emilio; Asensio, Esther; Manchado, Manuel; Infante, Carlos

    2015-06-01

    In this work, the complete cDNA sequence encoding angiotensinogen (agt) in the euryhaline flatfish Senegalese sole was obtained. Additionally, putative coding sequences belonging to other renin-angiotensin system (RAS) genes including renin (ren), angiotensin-converting enzyme (ace), angiotensin-converting enzyme 2 (ace2), as well as angiotensin II receptor type I (agtr1) and type II (agtr2), were also identified. In juvenile tissues, agt transcripts were mainly detected in liver, ren in kidney, ace and ace2 in intestine, agtr1 in kidney and brain, and agtr2 in liver and kidney. Expression analysis of the six RAS genes after a salinity shift revealed a clear increase of agt mRNA abundance in liver just after transferring soles to high salinity water (60 ppt) with a peak at 48 h. Moreover, gene expression analysis in gills showed transcriptional regulation of ace and agtr1 at 48 h and agtr2 at 96 h after transferring soles to 60 ppt. Incubation of larvae before mouth opening (until 3 days post hatch; dph) at low salinity (10 ppt) resulted in a coordinated transcriptional up-regulation of RAS genes. Nevertheless, no differences in mRNA abundance between salinities were observed when larvae were cultivated to low salinity after mouth opening. Whole-mount in situ hybridization (WISH) signal for agt and ace in 3 dph larvae incubated at 10 ppt and 35 ppt confirmed that the former gene was mainly expressed in liver whereas the later gene was mainly located in pharynx and posterior gut, without pronounced differences in intensity between salinities. Possible physiological significance of all these results is discussed. Copyright © 2015 Elsevier Inc. All rights reserved.

  20. Defective neutrophil chemotaxis in juvenile periodontitis.

    PubMed Central

    Clark, R A; Page, R C; Wilde, G

    1977-01-01

    Neutrophil chemotaxis was evaluated in nine patients with juvenile periodontitis, with normal subjects and patients with the adult form of periodontitis as controls. Defective chemotactic responses were observed in neutrophils from seven of nine juvenile patients, and a reduced level of complement-derived chemotactic activity was demonstrated in serum from four patients. These determinations were normal in all the patients with adult periodontitis. Serum from five of the juvenile patients contained a heat-stable, non-dialyzable factor that markedly inhibited the chemotaxis of normal neutrophils. Thus the characteristic tissue destruction seen in juvenile periodontitis may be, at least in part, a consequence of a failure of host defense mechanisms. PMID:591063

  1. Congenital juvenile granulosa cell tumor of the testis in newborns.

    PubMed

    Zugor, Vahudin; Labanaris, Apostolos P; Witt, Jörn; Seidler, Alexander; Weingärtner, Karl; Schott, Günter E

    2010-05-01

    Granulosa cell tumor of the testis is a rare intermediate stromal cell tumor that can be distinguished in the adult and juvenile type. The juvenile type is the most common reason for scrotal swelling in newborns under the age of six months. Less than fifty cases of this disease entity have been reported in the literature. In the following article, two newborn patients with scrotal swelling and a histological confirmation of juvenile granulosa cell tumor of the testis will be presented. Case 1: A newborn patient presented with massive scrotal swelling. Sonography of the testicle exhibited a multiple septic and cystic enlargement of the testicle without distinction of the testicular parenchyma being possible. The laboratory findings demonstrated normal testosterone levels, beta-HCG and inhibin-B levels as well as an increased alpha-fetoprotein level of 35.350 ng/dl. Due to clinical and sonographic findings, an inguinal exploration and later, due to the impossibility of distinction of the testicular parenchyma, an inguinal orchiectomy of the right testicle was performed. Case 2: The clinical and sonographic examination of a newborn patient demonstrated a suspicious process of the left testicle. Sonography exhibited an enlarged testicle with cystic formations with the distinction of the testicular parenchyma not being possible. The laboratory findings demonstrated normal testosterone levels, beta-HCG and inhibin-B levels as well as an increased alpha-fetoprotein level of 9.038 ng/dl and LDH of 768 U/I. An inguinal orchiectomy of the left testicle was performed. In both cases, a histological diagnosis of juvenile granulosa cell tumor of the testis was made. These two aforementioned cases demonstrate that juvenile granulosa cell tumor of the testis is a benign disease encountered in newborns, which exhibits an excellent prognosis. Inguinal orchiectomy is the therapy of choice. After surgical removal of the involved testicle is performed no further management is required.

  2. International consensus on preliminary definitions of improvement in adult and juvenile myositis.

    PubMed

    Rider, Lisa G; Giannini, Edward H; Brunner, Hermine I; Ruperto, Nicola; James-Newton, Laura; Reed, Ann M; Lachenbruch, Peter A; Miller, Frederick W

    2004-07-01

    To use a core set of outcome measures to develop preliminary definitions of improvement for adult and juvenile myositis as composite end points for therapeutic trials. Twenty-nine experts in the assessment of myositis achieved consensus on 102 adult and 102 juvenile paper patient profiles as clinically improved or not improved. Two hundred twenty-seven candidate definitions of improvement were developed using the experts' consensus ratings as a gold standard and their judgment of clinically meaningful change in the core set of measures. Seventeen additional candidate definitions of improvement were developed from classification and regression tree analysis, a data-mining decision tree tool analysis. Six candidate definitions specifying percentage change or raw change in the core set of measures were developed using logistic regression analysis. Adult and pediatric working groups ranked the 13 top-performing candidate definitions for face validity, clinical sensibility, and ease of use, in which the sensitivity and specificity were >/=75% in adult, pediatric, and combined data sets. Nominal group technique was used to facilitate consensus formation. The definition of improvement (common to the adult and pediatric working groups) that ranked highest was 3 of any 6 of the core set measures improved by >/=20%, with no more than 2 worse by >/=25% (which could not include manual muscle testing to assess strength). Five and 4 additional preliminary definitions of improvement for adult and juvenile myositis, respectively, were also developed, with several definitions common to both groups. Participants also agreed to prospectively test 6 logistic regression definitions of improvement in clinical trials. Consensus preliminary definitions of improvement were developed for adult and juvenile myositis, and these incorporate clinically meaningful change in all myositis core set measures in a composite end point. These definitions require prospective validation, but they are now

  3. Molecular Identification of Adult and Juvenile Linyphiid and Theridiid Spiders in Alpine Glacier Foreland Communities

    PubMed Central

    Raso, Lorna; Sint, Daniela; Rief, Alexander; Kaufmann, Rüdiger; Traugott, Michael

    2014-01-01

    In glacier forelands spiders constitute a large proportion of the invertebrate community. Therefore, it is important to be able to determine the species that can be found in these areas. Linyphiid and theridiid spider identification is currently not possible in juvenile specimens using traditional morphological based methods, however, a large proportion of the population in these areas are usually juveniles. Molecular methods permit identification of species at different life stages, making juvenile identification possible. In this study we tested a molecular tool to identify the 10 most common species of Linyphiidae and Theridiidae found in three glacier foreland communities of the Austrian Alps. Two multiplex PCR systems were developed and over 90% of the 753 field-collected spiders were identified successfully. The species targeted were found to be common in all three valleys during the summer of 2010. A comparison between the molecular and morphological data showed that although there was a slight difference in the results, the overall outcome was the same independently of the identification method used. We believe the quick and reliable identification of the spiders via the multiplex PCR assays developed here will aid the study of these families in Alpine habitats. PMID:25050841

  4. Intensive Reading Instruction in Juvenile Correctional Settings

    ERIC Educational Resources Information Center

    Williams, Jacob L.; Wexler, Jade; Roberts, Greg; Carpenter, Clint

    2011-01-01

    Despite 60 years of evidence linking juvenile illiteracy and delinquency, practitioners and policymakers have been painfully slow in the implementation of evidence-based reading interventions for incarcerated juveniles. We will present the Texas Juvenile Justice Tiered Instructional Model, an evidence-based reading program model created…

  5. Juvenile dispersal in Calomys venustus (Muridae: Sigmodontinae)

    NASA Astrophysics Data System (ADS)

    Priotto, José; Steinmann, Andrea; Provensal, Cecilia; Polop, Jaime

    2004-05-01

    Both spacing behaviour and dispersal movement are viewed as hierarchical processes in which the effects may be expressed at spatial scale. This research was carried out to examine the hypothesis that the presence of parents promotes the dispersal of juveniles from their natal nest and their father or mother home-range, in Calomys venustus.The study was carried out in four 0.25 ha fences (two controls and two experimentals), in a natural pasture. This study had two periods: Father Removal (FR) (August and December 1997; year one) and Mother Removal (MR) (August 1998 and January 1999; year two). For the FR treatment fathers were removed after juveniles were born, but in the MR treatment mothers were removed after the juveniles were weaned. The effect of parents on the dispersal distance of juveniles was analysed with respect to their natal nest and their mother and father home-range. Dispersal distance from the nest of C. venustus was independent of either male or female parent. Juveniles were more dispersing in relation to the centre of activity of their mothers than to that of their fathers, and females were more dispersing than males. Female juveniles overlap their home-range with their parents less than male juveniles do. The differences observed between female and male juveniles would be related to their different sexual maturation times, as well as to the female territoriality.

  6. Did the Devil Make Them Do It? An Examination of the Etiology of Satanism among Juvenile Delinquents.

    ERIC Educational Resources Information Center

    Damphousse, Kelly R.; Crouch, Ben M.

    1992-01-01

    Studies common explanations for juvenile involvement in Satanism (participants manifest unique attributes that promote involvement or participants become involved through processes common to other deviance types). Data from interviews with 530 Texas youths incarcerated over 6 months for delinquency suggest that Satanism may emerge from unique and…

  7. Iatrogenic effect of juvenile justice.

    PubMed

    Gatti, Uberto; Tremblay, Richard E; Vitaro, Frank

    2009-08-01

    The present study uses data from a community sample of 779 low-SES boys to investigate whether intervention by the juvenile justice system is determined, at least in part, by particular individual, familial and social conditions, and whether intervention by the juvenile courts during adolescence increases involvement in adult crime. The study considers self-reported crime in childhood and adolescence, and introduces individual, familial and social variables into its analysis. The results show that youths who are poor, impulsive, poorly supervised by their parents, and exposed to deviant friends are more likely, for the same degree of antisocial behavior, to undergo intervention by the Juvenile Court, and that this intervention greatly increases the likelihood of involvement with the penal system in adulthood. The results also show that the various measures recommended by the Juvenile Court exert a differential criminogenic effect; those that involve placement have the most negative impact.

  8. Eliminating the Competency Presumption in Juvenile Delinquency Cases.

    PubMed

    Katner, David R

    2015-01-01

    The legal presumption used in virtually all juvenile delinquency cases in the U.S. is that all juveniles are competent to stand trial. This Article calls for the elimination of that legal presumption, which is historically based on the Dusky v. United States decision and in the adult criminal justice system. The recent decisions of the U.S. Supreme Court recognize the developmental and organic brain differences between adults and juveniles. Current research demonstrates a higher frequency rate of incompetence based on intellectual deficiencies among children when compared with adults found to be not legally competent to stand trial. By eliminating the competency presumption for juveniles in both delinquency and adult criminal proceedings, the party seeking an adjudication would be responsible for establishing that the accused juvenile is in fact, competent to stand trial. Foreign jurisdictions in Europe, Asia, Africa, and South America have long required higher thresholds--at least fourteen years of age--for holding juveniles accountable for criminal misconduct, none of them presuming that juveniles are competent to go to trial. In the alternative, by expanding the factors currently in use for determination of juvenile competency by adding developmental immaturity and mental illness, juvenile justice systems could identify the reduction of recidivist offending as the primary systemic objective.

  9. Juvenile offenders: competence to stand trial.

    PubMed

    Soulier, Matthew

    2012-12-01

    This article details the legal background and assists the reader in the preparation and practical conduct of evaluations regarding juvenile adjudicative competency. The material is presented to be useful as a guide to direct questions of competency and covers aspects of evaluation that include: legal standard for competency to stand trial, developmental immaturity, current practice in juvenile competency to stand trial, forensic evaluation of juvenile competency to stand trial, organizing the evaluation, collateral sources of information, psychiatric evaluation of juvenile adjudicative competency, assessment of mental disorder and intellectual disability, assessment of developmental status, assessment of functional abilities for adjudicative competence, and reaching the forensic opinion. Copyright © 2012 Elsevier Inc. All rights reserved.

  10. Differential incorporation of natural spawners vs. artificially planted salmon carcasses in a stream food web: Evidence from delta 15N of juvenile coho salmon

    EPA Science Inventory

    Placement of salmon carcasses is a common restoration technique in Oregon and Washington streams, with the goal of improving food resources and productivity of juvenile salmon. To explore the effectiveness of this restoration technique, we measured the δ15N of juvenile coho salmo...

  11. PSYCHOSOCIAL PROFILE OF JUVENILE DIABETES

    PubMed Central

    Dass, Jyoti; Dhavale, H.S.; Rathi, Anup

    1999-01-01

    A study of the complex relationships between the patient characteristics, family and environmental influences, physician's behaviour and the demands of the disease with its management in Juvenile Diabetics was taken up at a general hospital. 90 subjects were selected for the study and grouped into three. Group A consisted of 30 Juvenile Diabetics, Group B of 30 Adult Diabetics and Group C of 30 Normal healthy adolescents. The impact of the illness was measured on the Diabetes Impact Measurement Scale (DIMS), the behavioural deviations and the parental attitudes towards child rearing on the Fallstrom's Questionnaire (FQ) and the family environment on the Family Climate Scale (FCS). Psychiatric morbidity was assessed using DSM-IV criteria. Group A & B were compared on the DIMS and Group A & C on FQ & FCS. Adult diabetics had a greater impact of diabetes. Juvenile diabetics had significantly higher frequency of behavioural deviations as compared to controls. Also there was a higher number of responses on questions indicating an overprotecting attitude amongst parents of juvenile diabetics. There was an increased incidence of psychiatric morbidity in juvenile diabetics as compared to normal adolescents irrespective of the family environment. The results are discussed in relation to current literature. PMID:21430802

  12. Guidelines for Juvenile Information Sharing. OJJDP Report

    ERIC Educational Resources Information Center

    Mankey, Jennifer; Baca, Patricia; Rondenell, Stephanie; Webb, Marilyn; McHugh, Denise

    2006-01-01

    The juvenile information sharing (JIS) guidelines were prepared by the Center for Network Development (CND) for the Office of Juvenile Justice and Delinquency Prevention (OJJDP). The guidelines suggest a course of action for key agency and organization stakeholders involved in a state or local effort to implement and sustain juvenile information…

  13. Efficacy of adalimumab in young children with juvenile idiopathic arthritis and chronic uveitis: a case series.

    PubMed

    La Torre, Francesco; Cattalini, Marco; Teruzzi, Barbara; Meini, Antonella; Moramarco, Fulvio; Iannone, Florenzo

    2014-05-24

    Juvenile idiopathic arthritis is a relatively common chronic disease of childhood, and is associated with persistent morbidity and extra-articular complications, one of the most common being uveitis. The introduction of biologic therapies, particularly those blocking the inflammatory mediator tumor necrosis factor-α, provided a new treatment option for juvenile idiopathic arthritis patients who were refractory to standard therapy such as non-steroidal anti-inflammatory drugs, corticosteroids and/or methotrexate. The first case was a 2-year-old girl with juvenile idiopathic arthritis and uveitis who failed to respond to treatment with anti-inflammatories, low-dose corticosteroids and methotrexate, and had growth retardation. Adalimumab 24 mg/m2 every 2 weeks and prednisone 0.5 mg/kg/day were added to methotrexate therapy; steroid tapering and withdrawal started after 1 month. After 2 months the patient showed good control of articular and ocular manifestations, and she remained in remission for 1 year, receiving adalimumab and methotrexate with no side effects, and showing significant improvement in growth. Case 2 was a 9-year-old boy with an 8-year history of juvenile idiopathic arthritis and uveitis that initially responded to infliximab, but relapse occurred after 2 years off therapy. After switching to adalimumab, and adjusting doses of both adalimumab and methotrexate based on body surface area, the patient showed good response and corticosteroids were tapered and withdrawn after 6 months; the patient remained in remission taking adalimumab and methotrexate. The final case was a 5-year-old girl with juvenile idiopathic arthritis for whom adalimumab was added to methotrexate therapy after three flares of uveitis. The patient had two subsequent episodes of uveitis that responded well to local therapy, but was then free of both juvenile idiopathic arthritis and uveitis symptoms, allowing methotrexate and then adalimumab to be stopped; the patient remained in drug

  14. Efficacy of adalimumab in young children with juvenile idiopathic arthritis and chronic uveitis: a case series

    PubMed Central

    2014-01-01

    Background Juvenile idiopathic arthritis is a relatively common chronic disease of childhood, and is associated with persistent morbidity and extra-articular complications, one of the most common being uveitis. The introduction of biologic therapies, particularly those blocking the inflammatory mediator tumor necrosis factor-α, provided a new treatment option for juvenile idiopathic arthritis patients who were refractory to standard therapy such as non-steroidal anti-inflammatory drugs, corticosteroids and/or methotrexate. Case presentations The first case was a 2-year-old girl with juvenile idiopathic arthritis and uveitis who failed to respond to treatment with anti-inflammatories, low-dose corticosteroids and methotrexate, and had growth retardation. Adalimumab 24 mg/m2 every 2 weeks and prednisone 0.5 mg/kg/day were added to methotrexate therapy; steroid tapering and withdrawal started after 1 month. After 2 months the patient showed good control of articular and ocular manifestations, and she remained in remission for 1 year, receiving adalimumab and methotrexate with no side effects, and showing significant improvement in growth. Case 2 was a 9-year-old boy with an 8-year history of juvenile idiopathic arthritis and uveitis that initially responded to infliximab, but relapse occurred after 2 years off therapy. After switching to adalimumab, and adjusting doses of both adalimumab and methotrexate based on body surface area, the patient showed good response and corticosteroids were tapered and withdrawn after 6 months; the patient remained in remission taking adalimumab and methotrexate. The final case was a 5-year-old girl with juvenile idiopathic arthritis for whom adalimumab was added to methotrexate therapy after three flares of uveitis. The patient had two subsequent episodes of uveitis that responded well to local therapy, but was then free of both juvenile idiopathic arthritis and uveitis symptoms, allowing methotrexate and then adalimumab to be

  15. Juvenile Prostitution.

    ERIC Educational Resources Information Center

    Csapo, Marg

    1986-01-01

    Recent research and Canadian government committee reports concerning juvenile prostitution are reviewed. Proposals are made in the realms of law and social policy; and existing programs are described. (DB)

  16. “The Chain Has to Be Broken”: A Qualitative Investigation of the Experiences of Young Women Following Juvenile Court Involvement

    PubMed Central

    Bright, Charlotte Lyn; Ward, Sara K.; Negi, Nalini Junko

    2012-01-01

    Whereas the number of girls involved in the juvenile justice system is on the rise, little is known about female juvenile offenders after they reach adulthood. This study aims to explore the meaning that young adult women ascribe to their juvenile court experiences and assess their perceptions of facilitators and barriers to progress in their adult lives. Data on services and support are presented from nine semistructured interviews. Findings include the commonality of mental health issues, substance abuse, and problematic relationships with intimate partners. Implications for service provision and policy, as well as future research directions, are outlined. PMID:29710878

  17. In vivo physiological recording from the lateral line of juvenile zebrafish

    PubMed Central

    Olt, Jennifer; Allen, Claire E.

    2016-01-01

    Key points Zebrafish provide a unique opportunity to investigate in vivo sensory transduction in mature hair cells.We have developed a method for studying the biophysical properties of mature hair cells from the lateral line of juvenile zebrafish.The method involves application of the anaesthetic benzocaine and intubation to maintain ventilation and oxygenation through the gills.The same approach could be used for in vivo functional studies in other sensory and non‐sensory systems from juvenile and adult zebrafish. Abstract Hair cells are sensory receptors responsible for transducing auditory and vestibular information into electrical signals, which are then transmitted with remarkable precision to afferent neurons. The zebrafish lateral line is emerging as an excellent in vivo model for genetic and physiological analysis of hair cells and neurons. However, research has been limited to larval stages because zebrafish become protected from the time of independent feeding under European law (from 5.2 days post‐fertilization (dpf) at 28.5°C). In larval zebrafish, the functional properties of most of hair cells, as well as those of other excitable cells, are still immature. We have developed an experimental protocol to record electrophysiological properties from hair cells of the lateral line in juvenile zebrafish. We found that the anaesthetic benzocaine at 50 mg l−1 was an effective and safe anaesthetic to use on juvenile zebrafish. Concentrations up to 300 mg l−1 did not affect the electrical properties or synaptic vesicle release of juvenile hair cells, unlike the commonly used anaesthetic MS‐222, which reduces the size of basolateral membrane K+ currents. Additionally, we implemented a method to maintain gill movement, and as such respiration and blood oxygenation, via the intubation of > 21 dpf zebrafish. The combination of benzocaine and intubation provides an experimental platform to investigate the physiology of mature hair cells from live

  18. A brief history of behavioral assessment following experimental traumatic brain injury in juveniles.

    PubMed

    Hartman, Richard E

    2011-12-01

    This review focuses on assessment of behavioral outcomes following traumatic brain injury in juvenile animal models. In the 15 years since the first publication in this field, the majority of studies have used rats roughly equivalent to human toddlers in terms of brain development. Few studies have tested ages closer to human neonates, and fewer have assessed ages closer to human adolescents. Closed head impact has been the most commonly used model, causing relatively consistent motor and cognitive deficits. Additionally, closed head impacts of a more severe nature have generally led to behavioral deficits of a more severe nature. Impact models (both closed and open skull) have produced more severe deficits in younger animals than in older animals, similar to patterns observed in juvenile humans with traumatic brain injury. In contrast, the fluid percussion model has produced relatively subtle deficits that did not get worse with a more severe injury and were worse for older animals than younger animals. Most of the studies have looked at relatively short postinjury time points, and none so far have assessed behavior in old adult animals injured as juveniles. The review ends with a discussion of possible directions for future animal research into juvenile traumatic brain injury.

  19. Juvenile granulosa cell tumor of the testis: a bilateral and synchronous case. Should testis-sparing surgery be mandatory?

    PubMed

    Cosentino, Marco; Algaba, Ferran; Saldaña, Lily; Bujons, Ana; Caffaratti, Jorge; Garat, Jose M; Villavicencio, Humberto

    2014-09-01

    Granulosa cell tumor of the testis is an infrequent stromal cell tumor that can be distinguished into adult and juvenile, the latter being more common. Juvenile granulosa cell tumor of the testis is a rare pathologic finding, accounting for 1.2%-3.9% of prepubertal testicular tumors. It is considered as a benign stromal sex cord tumor and is usually unilateral. Although radical surgery was previously considered the treatment of choice, testis-sparing surgery is now recommended in all cases where applicable. We report a bilateral synchronous juvenile granulosa cell tumor in a 6-month-old child treated with testis-sparing surgery and provide a review of the literature. Copyright © 2014 Elsevier Inc. All rights reserved.

  20. Anti-TNF therapy for juvenile idiopathic arthritis-related uveitis

    PubMed Central

    Semeraro, Francesco; Arcidiacono, Barbara; Nascimbeni, Giuseppe; Angi, Martina; Parolini, Barbara; Costagliola, Ciro

    2014-01-01

    Juvenile idiopathic arthritis-related uveitis is the most common type of uveitis in childhood and one of the main causes of visual impairment in children. The introduction of biological treatment has widened the range of therapeutic options for children with uveitis refractory to standard nonbiologic immunosuppressants. Data from clinical trials suggest that both adalimumab and infliximab have demonstrated effectiveness and safety in open-label studies, although no large, randomized, controlled trials have been reported so far. The role of etanercept in treating juvenile idiopathic arthritis-related uveitis is not yet well defined. In our experience, anti-tumor necrosis factor therapy has been shown to be more effective than steroids and/or methotrexate in treating uveitis. Up to now, tumor necrosis factor blocking compounds have been reserved for the treatment of the most severe cases of refractory uveitis, and larger prospective clinical trials are required in order to better assess the safety of these new compounds. PMID:24711694

  1. Anti-TNF therapy for juvenile idiopathic arthritis-related uveitis.

    PubMed

    Semeraro, Francesco; Arcidiacono, Barbara; Nascimbeni, Giuseppe; Angi, Martina; Parolini, Barbara; Costagliola, Ciro

    2014-01-01

    Juvenile idiopathic arthritis-related uveitis is the most common type of uveitis in childhood and one of the main causes of visual impairment in children. The introduction of biological treatment has widened the range of therapeutic options for children with uveitis refractory to standard nonbiologic immunosuppressants. Data from clinical trials suggest that both adalimumab and infliximab have demonstrated effectiveness and safety in open-label studies, although no large, randomized, controlled trials have been reported so far. The role of etanercept in treating juvenile idiopathic arthritis-related uveitis is not yet well defined. In our experience, anti-tumor necrosis factor therapy has been shown to be more effective than steroids and/or methotrexate in treating uveitis. Up to now, tumor necrosis factor blocking compounds have been reserved for the treatment of the most severe cases of refractory uveitis, and larger prospective clinical trials are required in order to better assess the safety of these new compounds.

  2. Juvenile Justice in Rural America.

    ERIC Educational Resources Information Center

    Jankovic, Joanne, Ed.; And Others

    Producing a much-needed organized body of literature about rural juvenile justice, 14 papers (largely from the 1979 National Symposium on Rural Justice) are organized to identify current issues, identify forces causing changes in current systems, review programs responding to rural juvenile justice problems, and provide planning models to aid…

  3. Psychopathology in Female Juvenile Offenders

    ERIC Educational Resources Information Center

    Dixon, Angela; Howie, Pauline; Starling, Jean

    2004-01-01

    Background: The aim was to document the spectrum of present and lifetime psychological disorders in female juvenile offenders, and to examine the relations between mental health status and socio-demographic, family and trauma variables. Method: One hundred juvenile offenders were matched with a comparison group of 100 females on age and…

  4. 31 CFR 360.36 - Payment during life of sole owner.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false Payment during life of sole owner. 360.36 Section 360.36 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued... UNITED STATES SAVINGS BONDS, SERIES I General Provisions for Payment § 360.36 Payment during life of sole...

  5. Linking Demographic Processes of Juvenile Corals to Benthic Recovery Trajectories in Two Common Reef Habitats

    PubMed Central

    Doropoulos, Christopher; Ward, Selina; Roff, George; González-Rivero, Manuel; Mumby, Peter J.

    2015-01-01

    Tropical reefs are dynamic ecosystems that host diverse coral assemblages with different life-history strategies. Here, we quantified how juvenile (<50 mm) coral demographics influenced benthic coral structure in reef flat and reef slope habitats on the southern Great Barrier Reef, Australia. Permanent plots and settlement tiles were monitored every six months for three years in each habitat. These environments exhibited profound differences: the reef slope was characterised by 95% less macroalgal cover, and twice the amount of available settlement substrata and rates of coral settlement than the reef flat. Consequently, post-settlement coral survival in the reef slope was substantially higher than that of the reef flat, and resulted in a rapid increase in coral cover from 7 to 31% in 2.5 years. In contrast, coral cover on the reef flat remained low (~10%), whereas macroalgal cover increased from 23 to 45%. A positive stock-recruitment relationship was found in brooding corals in both habitats; however, brooding corals were not directly responsible for the observed changes in coral cover. Rather, the rapid increase on the reef slope resulted from high abundances of broadcast spawning Acropora recruits. Incorporating our results into transition matrix models demonstrated that most corals escape mortality once they exceed 50 mm, but for smaller corals mortality in brooders was double those of spawners (i.e. acroporids and massive corals). For corals on the reef flat, sensitivity analysis demonstrated that growth and mortality of larger juveniles (21–50 mm) highly influenced population dynamics; whereas the recruitment, growth and mortality of smaller corals (<20 mm) had the highest influence on reef slope population dynamics. Our results provide insight into the population dynamics and recovery trajectories in disparate reef habitats, and highlight the importance of acroporid recruitment in driving rapid increases in coral cover following large-scale perturbation

  6. Linking demographic processes of juvenile corals to benthic recovery trajectories in two common reef habitats.

    PubMed

    Doropoulos, Christopher; Ward, Selina; Roff, George; González-Rivero, Manuel; Mumby, Peter J

    2015-01-01

    Tropical reefs are dynamic ecosystems that host diverse coral assemblages with different life-history strategies. Here, we quantified how juvenile (<50 mm) coral demographics influenced benthic coral structure in reef flat and reef slope habitats on the southern Great Barrier Reef, Australia. Permanent plots and settlement tiles were monitored every six months for three years in each habitat. These environments exhibited profound differences: the reef slope was characterised by 95% less macroalgal cover, and twice the amount of available settlement substrata and rates of coral settlement than the reef flat. Consequently, post-settlement coral survival in the reef slope was substantially higher than that of the reef flat, and resulted in a rapid increase in coral cover from 7 to 31% in 2.5 years. In contrast, coral cover on the reef flat remained low (~10%), whereas macroalgal cover increased from 23 to 45%. A positive stock-recruitment relationship was found in brooding corals in both habitats; however, brooding corals were not directly responsible for the observed changes in coral cover. Rather, the rapid increase on the reef slope resulted from high abundances of broadcast spawning Acropora recruits. Incorporating our results into transition matrix models demonstrated that most corals escape mortality once they exceed 50 mm, but for smaller corals mortality in brooders was double those of spawners (i.e. acroporids and massive corals). For corals on the reef flat, sensitivity analysis demonstrated that growth and mortality of larger juveniles (21-50 mm) highly influenced population dynamics; whereas the recruitment, growth and mortality of smaller corals (<20 mm) had the highest influence on reef slope population dynamics. Our results provide insight into the population dynamics and recovery trajectories in disparate reef habitats, and highlight the importance of acroporid recruitment in driving rapid increases in coral cover following large-scale perturbation in

  7. Juvenile nasopharyngeal angiofibroma staging: An overview.

    PubMed

    Alshaikh, Nada Ali; Eleftheriadou, Anna

    2015-06-01

    Staging of tumors is very important in treatment and surgical decision making, as well as in predicting disease recurrence and prognosis. This review focuses on the different available classifications of juvenile nasopharyngeal angiofibroma (JNA) and their impact on the evaluation, management, and prognosis of JNA. The literature was reviewed, and publications on JNA staging were examined. Our MEDLINE search of the entire English-language literature found no review article on the current available staging systems for JNA. In this article, we review the common JNA classification systems that have been published, and we discuss some of their advantages and disadvantages. The most commonly used staging systems for JNA are the Radkowski and the Andrews-Fisch staging systems. However, some newer staging systems that are based on advances in technology and surgical approaches-the Onerci, INCan, and UPMC systems-have shown promising utility, and they will probably gain popularity in the future.

  8. Cryopyrin-Associated Autoinflammatory Syndromes (CAPS) - Juvenile

    MedlinePlus

    ... Keep me signed in Passwords are Case Sensitive. Ex. Enter smith as follows: Smith Forgot Username/Password? ... Erythematosus (Juvenile) Takayasu's Arteritis Tendinitis & Bursitis Tumor Necrosis Factor Receptor Associated Periodic Syndrome (Juvenile) Vasculitis Enfermedades y ...

  9. Malocclusions in a juvenile medieval skull material.

    PubMed

    Larsson, E

    1983-01-01

    From a mostly medieval skull material--the "Schreiner collections" in Oslo--juvenile crania were selected as follows: Group A: Crania with complete and intact primary dentition. n = 20. Group B: Crania with early mixed dentition. Incisors only erupted or under eruption. n = 47. Group C: Crania with late mixed dentition. n = 14. The author recorded visually: Sagittal and transversal dental relation, frontal dental contact, anterior cross-bite, rotation and crowding. There was good basal stability. Sagittally 1 moderately postnormal dentition was recorded, transversally there were no anomalies. Slight anterior cross-bite was recorded in 1 case, anterior cross-bite of one and two lateral incisors respectively in 2 others, and tête-à-tête contact in 3 cases. Crowding was recorded in 6 cases, in one of them being general, in the others located solely in the mandibular incisor segment. Broken contact and more or less pronounced rotation occurred in these dentitions. Rotation was also recorded in 2 other cases. The prevalence of malocclusions of the type that can be related to continuing finger-sucking or sucking of dummylike objects was very low in this material. This observation prompted the author to discuss a hypothesis concerning the aetiology of dummy- and finger-sucking habits.

  10. 31 CFR 315.36 - Payment during life of sole owner.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false Payment during life of sole owner. 315.36 Section 315.36 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued... § 315.36 Payment during life of sole owner. A savings bond registered in single ownership form (i.e...

  11. Challenges of working with FIADB17 data: the SOLE experience

    Treesearch

    Michael Spinney; Paul Van Deusen

    2007-01-01

    The Southern On Line Estimator (SOLE) is an Internet-based Forest Inventory and Analysis (FIA) data analysis tool. SOLE is based on data downloaded from the publicly available FIA database (FIADB) and summarized by plot condition. The tasks of downloading, processing, and summarizing FIADB data require specialized expertise in inventory theory and data manipulation....

  12. Iatrogenic Effect of Juvenile Justice

    ERIC Educational Resources Information Center

    Gatti, Uberto; Tremblay, Richard E.; Vitaro, Frank

    2009-01-01

    Background: The present study uses data from a community sample of 779 low-SES boys to investigate whether intervention by the juvenile justice system is determined, at least in part, by particular individual, familial and social conditions, and whether intervention by the juvenile courts during adolescence increases involvement in adult crime.…

  13. Temporal changes in the prevalence of parasites in two Oregon estuary-dwelling fishes.

    PubMed

    Olson, Robert E; Pierce, Jack R; Jacobson, Kym C; Burreson, Eugene M

    2004-06-01

    The parasite faunas of juvenile English sole (Parophrys vetulus) in 1971-1972 and staghorn sculpin (Leptocottus armatus) in 1971 from Yaquina Bay, Oregon, were compared with faunas found in the same estuary in 1997-2000 (English sole) and 1999-2000 (staghorn sculpin). The 7 most commonly occurring parasites in 1971 were compared with the same species observed during the same month and sampling sites in 1997-2000. Multivariate community analysis of juvenile English sole parasites supported the suggestion that the 1971 parasite data were representative of the early-1970s time period. Four of the parasite species infecting English sole and 6 of those infecting staghorn sculpins had significantly lower prevalences in 1997-2000. Parasite species with significantly lower prevalences also had reduced intensity levels. One parasite (Glugea stephani) of English sole increased in prevalence in the 1997-2000 samples in association with the warm estuarine temperatures during the 1997 El Niño year. Although the causes for the changes in occurrence of other parasites were not determined, ecological changes in Yaquina Bay that may have influenced parasite ecology include apparent changes in the estuary ichthyofauna that occurred between the sampling periods. Such changes could be associated with increases in the number of California sea lions (Zalophus californianus) subsequent to establishment of the Marine Mammal Protection Act in 1972.

  14. Effect of rocker-soled shoes on parameters of knee joint load in knee osteoarthritis.

    PubMed

    Madden, Elizabeth G; Kean, Crystal O; Wrigley, Tim V; Bennell, Kim L; Hinman, Rana S

    2015-01-01

    This study evaluated the immediate effects of rocker-soled shoes on parameters of the knee adduction moment (KAM) and pain in individuals with knee osteoarthritis (OA). Three-dimensional gait analysis was performed on 30 individuals (mean (SD): age, 61 (7) yr; 15 (50%) male) with radiographic and symptomatic knee OA under three walking conditions in a randomized order: i) wearing rocker-soled shoes (Skechers Shape-ups), ii) wearing non-rocker-soled shoes (ASICS walking shoes), and iii) barefoot. Peak KAM and KAM angular impulse were measured as primary indicators of knee load distribution. Secondary measures included the knee flexion moment (KFM) and knee pain during walking. Peak KAM was significantly lower when wearing the rocker-soled shoes compared with that when wearing the non-rocker-soled shoes (mean difference (95% confidence interval), -0.27 (-0.42 to -0.12) N·m/BW × Ht%; P < 0.001). Post hoc tests revealed no significant difference in KAM impulse between rocker-soled and non-rocker-soled shoe conditions (P = 0.13). Both peak KAM and KAM impulse were significantly higher during both shoe conditions compared with those during the barefoot condition (P < 0.001). There were no significant differences in KFM (P = 0.36) or knee pain (P = 0.89) between conditions. Rocker-soled shoes significantly reduced peak KAM when compared with non-rocker-soled shoes, without a concomitant change in KFM, and thus may potentially reduce medial knee joint loading. However, KAM parameters in the rocker-soled shoes remained significantly higher than those during barefoot walking. Wearing rocker-soled shoes did not have a significant immediate effect on walking pain. Further research is required to evaluate whether rocker-soled shoes can influence symptoms and progression of knee OA with prolonged wear.

  15. Prospective Prediction of Juvenile Homicide/Attempted Homicide among Early-Onset Juvenile Offenders

    PubMed Central

    Baglivio, Michael T.; Wolff, Kevin T.

    2017-01-01

    While homicide perpetrated by juveniles is a relatively rare occurrence, between 2010 and 2014, approximately 7%–8% of all murders involved a juvenile offender. Unfortunately, few studies have prospectively examined the predictors of homicide offending, with none examining first-time murder among a sample of adjudicated male and female youth. The current study employed data on 5908 juvenile offenders (70% male, 45% Black) first arrested at the age of 12 or younger to prospectively examine predictors of an arrest for homicide/attempted homicide by the age of 18. Among these early-onset offenders, males, Black youth, those living in households with family members with a history of mental illness, those engaging in self-mutilation, and those with elevated levels of anger/aggression (all measured by age 13) were more likely to be arrested for homicide/attempted homicide by age 18. These findings add to the scant scientific literature on the predictors of homicide, and illustrate potential avenues for intervention. PMID:28212340

  16. Prospective Prediction of Juvenile Homicide/Attempted Homicide among Early-Onset Juvenile Offenders.

    PubMed

    Baglivio, Michael T; Wolff, Kevin T

    2017-02-16

    While homicide perpetrated by juveniles is a relatively rare occurrence, between 2010 and 2014, approximately 7%-8% of all murders involved a juvenile offender. Unfortunately, few studies have prospectively examined the predictors of homicide offending, with none examining first-time murder among a sample of adjudicated male and female youth. The current study employed data on 5908 juvenile offenders (70% male, 45% Black) first arrested at the age of 12 or younger to prospectively examine predictors of an arrest for homicide/attempted homicide by the age of 18. Among these early-onset offenders, males, Black youth, those living in households with family members with a history of mental illness, those engaging in self-mutilation, and those with elevated levels of anger/aggression (all measured by age 13) were more likely to be arrested for homicide/attempted homicide by age 18. These findings add to the scant scientific literature on the predictors of homicide, and illustrate potential avenues for intervention.

  17. Juvenile Crime, Juvenile Justice. Panel on Juvenile Crime: Prevention, Treatment, and Control.

    ERIC Educational Resources Information Center

    McCord, Joan, Ed.; Widom, Cathy Spatz, Ed.; Crowell, Nancy A., Ed.

    This book discusses patterns and trends in crimes committed by children and adolescents, analyzing youth crime as a subset of general crime and studying the impact of race and gender. It evaluates different approaches to forecasting future crime rates. Data come from a national panel that examined what is known about juvenile crime and its…

  18. Suicide Prevention in Juvenile Facilities.

    ERIC Educational Resources Information Center

    Hayes, Lindsay M.

    2000-01-01

    Youth suicide is recognized as a serious public health problem, but suicide within juvenile facilities has not received comparable attention, and the extent and nature of these deaths remain unknown. This article utilizes an example of a young man in a juvenile justice facility who succeeded in committing suicide to illustrate these points.…

  19. Identification of arsenobetaine in sole, lemon sole, flounder, dab, crab and shrimps by field desorption and fast atom bombardment mass spectrometry

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Luten, J.B.; Riekwel-Booy, G.; Greef, M.C.

    1983-01-01

    Organo-arsenic has been isolated from sole, lemon sole, flounder, dab, crab and shrimps by extraction or ion-exchange in combination with thin-layer chromatography. An alkaline digestion of the samples, followed by a reduction with sodiumborohydride leads to the formation of trimethylarsine. Field desorption mass spectrometry (FDMS) can be used to identify arsenobetaine in the isolates. Sufficient purification by thin-layer chromatography is found to be a prerequisite for the detection of a protonated molecular ion of arsenobetaine. If this situation is not met acid enchanced FDMS or Fast Atom Bombardment mass spectrometry in high resolution can be used successfully.

  20. Vegetative propagation of mature and juvenile northern red oak

    Treesearch

    James J. Zaczek; K. C. Steiner; C. W., Jr. Heuser

    1993-01-01

    Rooting trials were established to evaluate rooting success of cuttings from mature and juvenile, grafted and ungrafted northern red oak (NRO). Buds from 4 mature NRO ortets and juvenile seedlings were grafted onto juvenile and mature rootstock. Cuttings were collected from the grafts and from juvenile and mature shoots developed in situ and...

  1. The Interaction between Juvenile School Fire Setting and Bullying: An Exploratory Study

    ERIC Educational Resources Information Center

    Sharp, Amy; Roe-Sepowitz, Dominique; Boberg, Janet

    2009-01-01

    The aim of this study is to provide school social workers with an outline of the indicators common to school fire setters regarding their experiences of bullying and victimization by bullies. A sample of juvenile fire setters (N = 379) between the ages of five and seventeen years attending a fire-setter intervention program completed a modified…

  2. Juvenile wood effect in red alder : analysis of physical and mechanical data to delineate juvenile and mature wood zones

    Treesearch

    Joel W. Evans; John F. Senft; David W. Green

    2000-01-01

    The objective of this study was to investigate the influence of juvenile wood on the mechanical and physical properties of red alder. Tree growth in the first 10 to 20 years, usually referred to as juvenile wood, often influences wood quality by adversely affecting mechanical strength properties. Strength can be reduced up to 50 percent by the presence of juvenile wood...

  3. Vulnerability to predation and physiological stress responses of experimentally descaled juvenile Chinook salmon, Oncorhynchus tshawytscha

    USGS Publications Warehouse

    Gadomski, Dena M.; Mesa, Matthew G.; Olson, Todd M.

    1994-01-01

    Juvenile salmonids,Oncorhynchus spp., commonly encounter conditions (e.g., during hatchery release and dam passage) that result in damage to the skin, scale, and slime complex. We conducted laboratory experiments to determine if descaling of juvenile chinook salmon,O. tshawytscha, increased their vulnerability to predation, and to assess the physiological stress responses elicited by descaling. Salmon were experimentally descaled on either 10% or 20% of their total body area. When offered equal numbers of control and descaled juvenile chinook salmon, northern squawfish,Ptychocheilus oregonensis, did not consume significantly more of either prey type (48–60% of consumed prey were descaled). Juvenile chinook salmon descaled on 10% of their body area did show significant physiological stress responses, however. Mean concentrations of plasma cortisol peaked 1 h after descaling, and returned to control levels by 12 h. Plasma glucose peaked 3 h post-treatment and remained elevated for 24 h. Plasma lactate increased immediately following treatment and returned to undisturbed control levels by 3 h. The osmoregulatory response of plasma potassium was highly variable, but plasma sodium decreased immediately and remained low for 24 h. The observed physiological responses suggest that descaling of juvenile chinook salmon could result in decreased resistance to disease and other stressors encountered in the field, possibly leading to reduced performance capacity and lowered survival.

  4. Evidence for colonization and destruction of hinge ligaments in cultured juvenile Pacific oysters (Crassostrea gigas) by cytophaga-like bacteria.

    PubMed Central

    Dungan, C F; Elston, R A; Schiewe, M H

    1989-01-01

    Several strains of cytophaga-like gliding bacteria (CLB) were isolated as numerically dominant or codominant components of bacterial populations associated with proteinaceous hinge ligaments of cultured juvenile Pacific oysters, Crassostrea gigas. These bacteria were morphologically similar to long, flexible bacilli occurring within degenerative lesions in oyster hinge ligaments. Among bacteria isolated from hinge ligaments, only CLB strains were capable of sustained growth with hinge ligament matrix as the sole source of organic carbon and nitrogen. In vitro incubation of cuboidal portions of ligament resilium with ligament CLB resulted in bacterial proliferation on the surfaces and penetration deep into ligament matrices. Bacterial proliferation was accompanied by loss of resilium structural and mechanical integrity, including complete liquefaction, at incubation temperatures between 10 and 20 degrees C. The morphological, distributional, and degradative characteristics of CLB isolated from oyster hinge ligaments provide compelling, albeit indirect, evidence that CLB are the agents of a degenerative disease affecting juvenile cultured oysters. The motility, metabolic, and hydrolytic characteristics of hinge ligament CLB and the low moles percent G + C values (32.4 to 32.9) determined for three representative strains indicate that they are marine Cytophaga spp. Images PMID:2757377

  5. Evidence for colonization and destruction of hinge ligaments in cultured juvenile Pacific oysters (Crassostrea gigas) by cytophaga-like bacteria.

    PubMed

    Dungan, C F; Elston, R A; Schiewe, M H

    1989-05-01

    Several strains of cytophaga-like gliding bacteria (CLB) were isolated as numerically dominant or codominant components of bacterial populations associated with proteinaceous hinge ligaments of cultured juvenile Pacific oysters, Crassostrea gigas. These bacteria were morphologically similar to long, flexible bacilli occurring within degenerative lesions in oyster hinge ligaments. Among bacteria isolated from hinge ligaments, only CLB strains were capable of sustained growth with hinge ligament matrix as the sole source of organic carbon and nitrogen. In vitro incubation of cuboidal portions of ligament resilium with ligament CLB resulted in bacterial proliferation on the surfaces and penetration deep into ligament matrices. Bacterial proliferation was accompanied by loss of resilium structural and mechanical integrity, including complete liquefaction, at incubation temperatures between 10 and 20 degrees C. The morphological, distributional, and degradative characteristics of CLB isolated from oyster hinge ligaments provide compelling, albeit indirect, evidence that CLB are the agents of a degenerative disease affecting juvenile cultured oysters. The motility, metabolic, and hydrolytic characteristics of hinge ligament CLB and the low moles percent G + C values (32.4 to 32.9) determined for three representative strains indicate that they are marine Cytophaga spp.

  6. The current status of evidence-based practice in juvenile justice.

    PubMed

    McKee, Esther Chao; Rapp, Lisa

    2014-01-01

    The advent of evidence-based practice (EBP) has significantly changed the juvenile justice system while producing intense controversy. The intent of this article is to provide an update on the current status of EBP in the juvenile justice system. Specifically, this article will describe the evolution of juvenile justice philosophy as it has informed current juvenile justice policies and programs, discuss the scope of current juvenile justice research regarding EBP, identify barriers to implementing EBP, expound on the development of EBP in juvenile justice, discern the characteristics of evidence-based interventions in the juvenile justice system, and finally describe how to select and assess evidence-based practices and interventions.

  7. Aedes aegypti juvenile hormone acid methyl transferase, the ultimate enzyme in the biosynthetic pathway of juvenile hormone III, exhibits substrate control

    USDA-ARS?s Scientific Manuscript database

    We report on the cloning, sequencing, characterization, 3D modeling and docking of Aedes aegypti juvenile hormone acid methyl transferase (AeaJHAMT), the enzyme that converts juvenile hormone acid (JHA) into juvenile hormone (JH). Purified recombinant AeaJHAMT was extensively characterized for enzym...

  8. Correlation of genetic and clinical findings in Spanish patients with X-linked juvenile retinoschisis.

    PubMed

    Riveiro-Alvarez, Rosa; Trujillo-Tiebas, Maria-Jose; Gimenez-Pardo, Ascension; Garcia-Hoyos, Maria; Lopez-Martinez, Miguel-Angel; Aguirre-Lamban, Jana; Garcia-Sandoval, Blanca; Vazquez-Fernandez del Pozo, Silvia; Cantalapiedra, Diego; Avila-Fernandez, Almudena; Baiget, Montserrat; Ramos, Carmen; Ayuso, Carmen

    2009-09-01

    X-linked juvenile retinoschisis (XLRS) is one of the most common causes of juvenile macular degeneration in males, characterized by microcystic changes, splitting within the inner retinal layer (schisis), and the presence of vitreous veils. This study was conducted to describe and further correlate specific genetic variation in Spanish patients with XLRS with clinical characteristics and additional ophthalmic complications. The study was performed in 34 Spanish families with XLRS, comprising 51 affected males. Thorough clinical ophthalmic and electrophysiological examinations were performed. The coding regions of the RS1 gene were amplified by polymerase chain reaction and directly sequenced. Haplotype analyses were also performed. Twenty different mutations were identified. Ten of the 20 were novel and 3 were de novo mutational events. The most common mutation (p.Gln154Arg; 6/20) presented a common haplotype. RS1 variants did not correlate with ophthalmic findings and were not associated with additional ophthalmic complications. The prevalent p.Gln154Arg mutation is first reported in this work and presents a common origin in Spanish patients with XLRS. In addition, de novo mutations mainly occur in CG dinucleotides. Despite the large mutational spectrum and variable phenotypes, no genotype-phenotype correlations were found. Identifying the causative mutation is helpful in confirming diagnosis and counseling, but cannot provide a prognosis.

  9. Rocker-soled shoes and walking distance in patients with calf claudication.

    PubMed

    Richardson, J K

    1991-07-01

    Calf claudication is the major clinical manifestation of peripheral vascular occlusive disease in a significant number of patients. Although claudication causes substantial patient disability, most patients are treated conservatively because of the risks of surgical therapy and the uncertain efficacy of drug therapy. It was hypothesized that rocker-soled shoes would decrease the work of the plantar flexors and therefore increase walking distance in patients with calf claudication. To test this hypothesis, walking distances in patients with calf claudication using rocker-soled shoes and a placebo shoe insert were compared. Rocker-soled shoes significantly increased both the total distance walked and the distance at which patients were initially bothered by symptoms by 77m (37%, p less than .0005) and 89m (91%, p = .003), respectively. It was concluded that rocker-soled shoes may reduce disability in patients with calf claudication by increasing walking distance.

  10. 28 CFR 0.57 - Criminal prosecutions against juveniles.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... supervises the implementation of the Juvenile Justice and Delinquency Prevention Act (18 U.S.C. 5031 et seq... 28 Judicial Administration 1 2010-07-01 2010-07-01 false Criminal prosecutions against juveniles... JUSTICE Criminal Division § 0.57 Criminal prosecutions against juveniles. The Assistant Attorney General...

  11. 28 CFR 0.57 - Criminal prosecutions against juveniles.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... supervises the implementation of the Juvenile Justice and Delinquency Prevention Act (18 U.S.C. 5031 et seq... 28 Judicial Administration 1 2013-07-01 2013-07-01 false Criminal prosecutions against juveniles... JUSTICE Criminal Division § 0.57 Criminal prosecutions against juveniles. The Assistant Attorney General...

  12. 28 CFR 0.57 - Criminal prosecutions against juveniles.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... supervises the implementation of the Juvenile Justice and Delinquency Prevention Act (18 U.S.C. 5031 et seq... 28 Judicial Administration 1 2014-07-01 2014-07-01 false Criminal prosecutions against juveniles... JUSTICE Criminal Division § 0.57 Criminal prosecutions against juveniles. The Assistant Attorney General...

  13. 28 CFR 0.57 - Criminal prosecutions against juveniles.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... supervises the implementation of the Juvenile Justice and Delinquency Prevention Act (18 U.S.C. 5031 et seq... 28 Judicial Administration 1 2011-07-01 2011-07-01 false Criminal prosecutions against juveniles... JUSTICE Criminal Division § 0.57 Criminal prosecutions against juveniles. The Assistant Attorney General...

  14. 28 CFR 0.57 - Criminal prosecutions against juveniles.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... supervises the implementation of the Juvenile Justice and Delinquency Prevention Act (18 U.S.C. 5031 et seq... 28 Judicial Administration 1 2012-07-01 2012-07-01 false Criminal prosecutions against juveniles... JUSTICE Criminal Division § 0.57 Criminal prosecutions against juveniles. The Assistant Attorney General...

  15. A Practical Approach to Juvenile Dermatomyositis and Juvenile Scleroderma.

    PubMed

    McCann, Liza J; Pain, Clare E

    2016-02-01

    Juvenile dermatomyositis and juvenile scleroderma are rare multisystem autoimmune disorders. Although they share some pathognomonic hallmarks with adult onset myositis or scleroderma, there are significant differences in presentation, characteristics and associated features when the diseases present in childhood. In view of this, and the rarity of the conditions, it is important for care to be led by teams with expertise in pediatric rheumatology conditions. Prognosis has improved significantly in the West; likely due to early diagnosis and aggressive treatment with immunosuppressive medications. However, this trend is not replicated in the developing world. Early recognition of these diseases is crucial to achieve rapid and sustained remission and prevent disease or medication associated complications. This article aims to provide a practical overview for recognition, diagnosis and treatment of these conditions.

  16. Adolescent neglect, juvenile delinquency and the risk of recidivism.

    PubMed

    Ryan, Joseph P; Williams, Abigail B; Courtney, Mark E

    2013-03-01

    Victims of child abuse and neglect are at an increased risk of involvement with the juvenile justice and adult correctional systems. Yet, little is known about the continuation and trajectories of offending beyond initial contact with law enforcement. Neglect likely plays a critical role in continued offending as parental monitoring, parental rejection and family relationships are instrumental in explaining juvenile conduct problems. This study sought to determine whether neglect is associated with recidivism for moderate and high risk juvenile offenders in Washington State. Statewide risk assessments and administrative records for child welfare, juvenile justice, and adult corrections were analyzed. The sample was diverse (24 % female, 13 % African American, 8 % Hispanic, 5 % Native American) and included all moderate and high risk juvenile offenders screened by juvenile probation between 2004 and 2007 (n = 19,833). Official records from child protection were used to identify juvenile offenders with a history of child neglect and to identify juvenile offenders with an ongoing case of neglect. Event history models were developed to estimate the risk of subsequent offending. Adolescents with an ongoing case neglect were significantly more likely to continue offending as compared with youth with no official history of neglect. These findings remain even after controlling for a wide range of family, peer, academic, mental health, and substance abuse covariates. Interrupting trajectories of offending is a primary focus of juvenile justice. The findings of the current study indicate that ongoing dependency issues play a critical role in explaining the outcomes achieved for adolescents in juvenile justice settings. The implications for improved collaboration between child welfare and juvenile justice are discussed.

  17. Do juveniles bully more than young offenders?

    PubMed

    Ireland, Jane L

    2002-04-01

    This study compares bullying behaviour among juvenile and young offenders and incorporates two different methods to measure bullying. Ninety-five male juvenile and 196 male young offenders completed two questionnaires, one that measured bullying directly and one that measured behaviours indicative of "being bullied" or of "bullying others". Juveniles perceived a higher extent of bullying than young offenders. Juveniles reported significantly more physical, psychological or verbal and overall direct forms of bullying behaviour than young offenders. A number of differences were found between juveniles and young offenders with regard to the types of prisoners likely to become victims, who they would advise a victim to speak to and how bullying could be prevented. The results are discussed in relation to developmental theories of aggression and how bullying behaviour can be defined and measured among prisoners. Copyright 2002 The Association for Professionals in Services for Adolescents. Published by Elsevier Science Ltd. All rights reserved.

  18. Best Practices in Juvenile Accountability: Overview. JAIBG Bulletin.

    ERIC Educational Resources Information Center

    Beyer, Marty

    This bulletin examines the Office of Juvenile Justice and Delinquency Prevention's Juvenile Accountability Incentive Block Grants (JAIBG) program, which asserts that juvenile offenders should be held accountable for their crimes as a matter of basic justice and to prevent and deter delinquency. It reviews the developmental perspective shaping…

  19. Contagion and Repeat Offending among Urban Juvenile Delinquents

    ERIC Educational Resources Information Center

    Mennis, Jeremy; Harris, Philip

    2011-01-01

    This research investigates the role of repeat offending and spatial contagion in juvenile delinquency recidivism using a database of 7166 male juvenile offenders sent to community-based programs by the Family Court of Philadelphia. Results indicate evidence of repeat offending among juvenile delinquents, particularly for drug offenders. The…

  20. Juvenile dermatomyositis presenting with periorbital edema.

    PubMed

    Taban, Mehryar; Perry, Julian D

    2006-01-01

    Juvenile dermatomyositis is a rare disease that affects the skin and muscles. It often presents with a classic heliotrope eyelid rash. We present a case of juvenile dermatomyositis presenting with significant bilateral periorbital edema, with its complete resolution after systemic antiinflammatory therapy.

  1. Juvenile xanthogranuloma of the nose

    PubMed Central

    Aburezq, Hisham; Jaeger, Marcos; Iyengar, Pratibha; Zuker, Ronald

    2004-01-01

    Juvenile xanthogranuloma is a type of non-Langerhans cell histiocytosis that occurs most frequently in infants and children. It is usually asymptomatic and can present as either a cutaneous or extracutaneous lesion. The present case is believed to be the first reported in the English literature of juvenile xanthogranuloma presenting as an ulcerated bleeding lesion on the dorsum of the nose. PMID:24115896

  2. Extending juvenility in grasses

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Kaeppler, Shawn; de Leon Gatti, Natalia; Foerster, Jillian

    The present invention relates to compositions and methods for modulating the juvenile to adult developmental growth transition in plants, such as grasses (e.g. maize). In particular, the invention provides methods for enhancing agronomic properties in plants by modulating expression of GRMZM2G362718, GRMZM2G096016, or homologs thereof. Modulation of expression of one or more additional genes which affect juvenile to adult developmental growth transition such as Glossy15 or Cg1, in conjunction with such modulation of expression is also contemplated. Nucleic acid constructs for down-regulation of GRMZM2G362718 and/or GRMZM2G096016 are also contemplated, as are transgenic plants and products produced there from, that demonstratemore » altered, such as extended juvenile growth, and display associated phenotypes such as enhanced yield, improved digestibility, and increased disease resistance. Plants described herein may be used, for example, as improved forage or feed crops or in biofuel production.« less

  3. Characteristics of Rural Communities with a Sole, Independently Owned Pharmacy.

    PubMed

    Nattinger, Matthew; Ullrich, Fred; Mueller, Keith J

    2015-04-01

    Prior RUPRI Center policy briefs have described the role of rural pharmacies in providing many essential clinical services (in addition to prescription and nonprescription medications), such as blood pressure monitoring, immunizations, and diabetes counseling, and the adverse effects of Medicare Part D negotiated networks on the financial viability of rural pharmacies.1 Because rural pharmacies play such a broad role in health care delivery, pharmacy closures can sharply reduce access to essential health care services in rural and underserved communities. These closures are of particular concern in rural areas served by a sole, independently owned pharmacy (i.e., a pharmacy unaffiliated with a chain or franchise). This policy brief characterizes the population of rural areas served by a sole, independently owned pharmacy. Dependent on a sole pharmacy, these areas are at highest risk to lose access to many essential clinical services. Key Findings. (1) In 2014 over 2.7 million people lived in 663 rural communities served by a sole, independently owned pharmacy. (2) More than one-quarter of these residents (27.9 percent) were living below 150 percent of the federal poverty level. (3) Based on estimates from 2012, a substantial portion of the residents of these areas were dependent on public insurance (i.e., Medicare and/or Medicaid, 20.5 percent) or were uninsured (15.0 percent). (4) If the sole, independent retail pharmacy in these communities were to close, the next closest retail pharmacy would be over 10 miles away for a majority of rural communities (69.7 percent).

  4. 31 CFR 800.223 - Solely for the purpose of passive investment.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... (Continued) OFFICE OF INVESTMENT SECURITY, DEPARTMENT OF THE TREASURY REGULATIONS PERTAINING TO MERGERS, ACQUISITIONS, AND TAKEOVERS BY FOREIGN PERSONS Definitions § 800.223 Solely for the purpose of passive... Board of Directors. The acquisition by Corporation A of a voting interest in Corporation B is not solely...

  5. An Empirical Evaluation of Juvenile Awareness Programs in the United States: Can Juveniles Be "Scared Straight"?

    ERIC Educational Resources Information Center

    Klenowski, Paul M.; Bell, Keith J.; Dodson, Kimberly D.

    2010-01-01

    Juvenile awareness programs like Scared Straight became popular crime prevention strategies during the 1970s. Juvenile offenders and at-risk youth who participate in these programs are taken to prisons where inmates use confrontational methods to recount stories about violence, sex, and abuse perpetrated by fellow inmates while living a life…

  6. Law & psychiatry: punishing juveniles who kill.

    PubMed

    Appelbaum, Paul S

    2012-10-01

    Punishment of juvenile murderers forces policy makers to weigh the developmental immaturity of adolescents against the heinousness of their crimes. The U.S. Supreme Court has progressively limited the severity of punishments that can be imposed on juveniles, holding that their impulsivity, susceptibility to peer pressure, and more fluid character render them less culpable for their actions. Having eliminated the death penalty as a punishment, the Court recently struck down mandatory life sentences without prospect of parole. The decision is interesting for its emphasis on rehabilitation, opening the door to further restrictions on punitive sentences for juveniles-and perhaps for adults too.

  7. In vivo physiological recording from the lateral line of juvenile zebrafish.

    PubMed

    Olt, Jennifer; Allen, Claire E; Marcotti, Walter

    2016-10-01

    Zebrafish provide a unique opportunity to investigate in vivo sensory transduction in mature hair cells. We have developed a method for studying the biophysical properties of mature hair cells from the lateral line of juvenile zebrafish. The method involves application of the anaesthetic benzocaine and intubation to maintain ventilation and oxygenation through the gills. The same approach could be used for in vivo functional studies in other sensory and non-sensory systems from juvenile and adult zebrafish. Hair cells are sensory receptors responsible for transducing auditory and vestibular information into electrical signals, which are then transmitted with remarkable precision to afferent neurons. The zebrafish lateral line is emerging as an excellent in vivo model for genetic and physiological analysis of hair cells and neurons. However, research has been limited to larval stages because zebrafish become protected from the time of independent feeding under European law (from 5.2 days post-fertilization (dpf) at 28.5°C). In larval zebrafish, the functional properties of most of hair cells, as well as those of other excitable cells, are still immature. We have developed an experimental protocol to record electrophysiological properties from hair cells of the lateral line in juvenile zebrafish. We found that the anaesthetic benzocaine at 50 mg l(-1) was an effective and safe anaesthetic to use on juvenile zebrafish. Concentrations up to 300 mg l(-1) did not affect the electrical properties or synaptic vesicle release of juvenile hair cells, unlike the commonly used anaesthetic MS-222, which reduces the size of basolateral membrane K(+) currents. Additionally, we implemented a method to maintain gill movement, and as such respiration and blood oxygenation, via the intubation of > 21 dpf zebrafish. The combination of benzocaine and intubation provides an experimental platform to investigate the physiology of mature hair cells from live zebrafish. More

  8. Runaways in Juvenile Courts. OJJDP Update on Statistics.

    ERIC Educational Resources Information Center

    Sickmund, Melissa

    The National Center for Juvenile Justice (NCJJ) analyzed records in the Center's National Juvenile Court Data Archive to examine how the juvenile courts handled runaway cases. NCJJ examined 40,000 records of runaway cases processed between 1985 and 1986 in 611 jurisdictions from 12 states representing about one-quarter of the U.S. youth population…

  9. Changes in Juvenile Justice in China.

    ERIC Educational Resources Information Center

    Wong, Dennis S. W.

    2001-01-01

    Discusses rising juvenile and youth crime in China, highlighting the essence of Chinese Marxist criminological thought and changing conceptions of delinquency from the postrevolutionary period to the present; examining official responses to delinquency and the recent development of juvenile justice; and suggesting that current delinquency control…

  10. Establishment and Characterization of a Testicular Cell Line from the Half-Smooth Tongue Sole, Cynoglossus semilaevis

    PubMed Central

    Zhang, Bo; Wang, Xianli; Sha, Zhenxia; Yang, Changgeng; Liu, Shanshan; Wang, Na; Chen, Song-Lin

    2011-01-01

    Spermatogenesis within the adult testis is an excellent system for studying stem cell renewal and differentiation, which is under the control of testicular somatic cells. In order to understanding spermatogenesis in the half-smooth tongue sole (Cynoglossus semilaevis) as a marine fish model of aquaculture importance, we established a cell line called CSGC from a juvenile gonad of this organism. CSGC is composed of fibroblast-like cells, retains a diploid karyotype of 42 chromosomes, lacks the heterogametic W chromosome, lacks a female specific marker and expresses the dmrt, a marker for testicular somatic cells. Therefore, CSGC appears to consist of testicular somatic cell cells. We show that this cell line is effective for infection by the turbot reddish body iridovirus and flounder lymphocystis disease virus as evidenced by the appearance of cytopathic effect and virus propagation in the virus-infected cells, and most convincingly, the observation of viral particles by electon microscopy, demonstrateing that CSGC is suitable to study interactions between virus and host cells. As a first fish testicular somatic cell line of the ZZ-ZW genetic sex determination system, CSGC will be a useful tool to study sex-related events and interactions between somatic cells and germ cells during spermatogenesis. PMID:21547062

  11. Development of consensus treatment plans for juvenile localized scleroderma: a roadmap toward comparative effectiveness studies in juvenile localized scleroderma.

    PubMed

    Li, Suzanne C; Torok, Kathryn S; Pope, Elena; Dedeoglu, Fatma; Hong, Sandy; Jacobe, Heidi T; Rabinovich, C Egla; Laxer, Ronald M; Higgins, Gloria C; Ferguson, Polly J; Lasky, Andrew; Baszis, Kevin; Becker, Mara; Campillo, Sarah; Cartwright, Victoria; Cidon, Michael; Inman, Christi J; Jerath, Rita; O'Neil, Kathleen M; Vora, Sheetal; Zeft, Andrew; Wallace, Carol A; Ilowite, Norman T; Fuhlbrigge, Robert C

    2012-08-01

    Juvenile localized scleroderma (LS) is a chronic inflammatory skin disorder associated with substantial morbidity and disability. Although a wide range of therapeutic strategies has been reported in the literature, a lack of agreement on treatment specifics and accepted methods for clinical assessment has made it difficult to compare approaches and identify optimal therapy. Our objective was to develop standardized treatment plans, clinical assessments, and response criteria for active, moderate to high severity juvenile LS. A core group of pediatric rheumatologists, dermatologists, and a lay advisor was engaged by the Childhood Arthritis and Rheumatology Research Alliance (CARRA) to develop standardized treatment plans and assessment parameters for juvenile LS using consensus methods/nominal group techniques. Recommendations were validated in 2 face-to-face conferences with a larger group of practitioners with expertise in juvenile LS and with the full membership of CARRA, which encompasses the majority of pediatric rheumatologists in the US and Canada. Consensus was achieved on standardized treatment plans that reflect the prevailing treatment practices of CARRA members. Standardized clinical assessment methods and provisional treatment response criteria were also developed. Greater than 90% of pediatric rheumatologists responding to a survey (66% of CARRA membership) affirmed the final recommendations and agreed to utilize these consensus plans to treat patients with juvenile LS. Using consensus methodology, we have developed standardized treatment plans and assessment methods for juvenile LS. The high level of support among pediatric rheumatologists will support future comparative effectiveness studies and enable the development of evidence-based guidelines for the treatment of juvenile LS. Copyright © 2012 by the American College of Rheumatology.

  12. Damage Extent and Predictors in Adult and Juvenile Dermatomyositis and Polymyositis Using the Myositis Damage Index

    PubMed Central

    Rider, Lisa G.; Lachenbruch, Peter A.; Monroe, Jason B.; Ravelli, Angelo; Cabalar, Imelda; Feldman, Brian M.; Villalba, Maria L.; Myones, Barry L.; Pachman, Lauren M.; Rennebohm, Robert M.; Reed, Ann M.; Miller, Frederick W.

    2009-01-01

    Objective We validated the Myositis Damage Index (MDI) in juvenile and adult myositis, to describe the degree and types of damage and to develop predictors of damage. Methods Retrospective MDI evaluations and prospective assessment of disease activity and illness features were conducted. Juvenile-onset patients (n = 143) were evaluated a median of 18 months after diagnosis; 135 patients were assessed 7–9 months later, and 121 were last assessed 82 months after diagnosis. Adult-onset patients (n = 96) with dermatomyositis (DM) or polymyositis (PM) had a baseline assessment a median of 30 months after diagnosis; 77 had a 6-month follow-up evaluation, and 55 had a final assessment 60 months after diagnosis. Results Damage was present in 79% of juvenile and 97% of adult patients. In juveniles, scar, contractures, persistent weakness, muscle dysfunction and calcinosis (23–30%) were most frequent on last evaluation. In adults, muscle atrophy, muscle dysfunction and weakness were most frequent (74–84%). MDI severity correlated with physician global damage, functional disability, weakness and muscle atrophy on MRI. MDI damage scores and frequency were highest in patients with a chronic illness course and in adult patients who died. Predictors of damage included functional disability, active disease duration, onset severity, global activity, and illness features, including ulcerations in children and pericarditis in adults. Conclusions Damage is common in myositis patients after a median of 5 years duration in adult-onset and 6.8 years in juvenile-onset patients. The MDI has good content, construct and predictive validity in juvenile and adult myositis. PMID:19877055

  13. Differential heritability of adult and juvenile antisocial traits.

    PubMed

    Lyons, M J; True, W R; Eisen, S A; Goldberg, J; Meyer, J M; Faraone, S V; Eaves, L J; Tsuang, M T

    1995-11-01

    Studies of adult antisocial behavior or criminality usually find genetic factors to be more important than the family environment, whereas studies of delinquency find the family environment to be more important. We compared DSM-III-R antisocial personality disorder symptoms before vs after the age of 15 years within a sample of twins, rather than comparing across studies. We administered the Diagnostic Interview Schedule Version III-revised by telephone to 3226 pairs of male twins from the Vietnam Era Twin Registry. Biometrical modeling was applied to each symptom of antisocial personality disorder and summary measures of juvenile and adult symptoms. Five juvenile symptoms were significantly heritable, and five were significantly influenced by the shared environment. Eight adult symptoms were significantly heritable, and one was significantly influenced by the shared environment. The shared environment explained about six times more variance in juvenile anti-social traits than in adult traits. Shared environmental influences on adult antisocial traits overlapped entirely with those on juvenile traits. Additive genetic factors explained about six times more variance in adult vs juvenile traits. The juvenile genetic determinants overlapped completely with genetic influences on adult traits. The unique environment (plus measurement error) explained the largest proportion of variance in both juvenile and adult antisocial traits. Characteristics of the shared or family environment that promote antisocial behavior during childhood and early adolescence also promote later antisocial behavior, but to a much lesser extent. Genetic causal factors are much more prominent for adult than for juvenile antisocial traits.

  14. Studies of certain sulfonamide drugs for use in juvenile chinook salmon

    USGS Publications Warehouse

    Amend, D.F.; Fryer, J.L.; Pilcher, K.S.

    1969-01-01

    In the work described in this paper, the efficacies of sulfisoxazole and sulfadimethoxine were compared to the efficacy of sulfamethazine. Experiments were designed to determine the rate of intestinal absorption, the rate of elimination from the blood, the effect on growth, and the toxicity of each drug in juvenile chinook salmon (Oncorhynchus tshawytscha). The comparative bacteriostatic activity against two common fish pathogens was also determined for each drug. 

  15. Drowning is an apparent and unexpected recurrent cause of mass mortality of Common starlings (Sturnus vulgaris)

    PubMed Central

    Lawson, Becki; Duff, J. Paul; Beckmann, Katie M.; Chantrey, Julian; Peck, Kirsi M.; Irvine, Richard M.; Robinson, Robert A.; Cunningham, Andrew A.

    2015-01-01

    Drowning is infrequently reported as a cause of death of wild birds and such incidents typically involve individual, rather than multiple, birds. Over a 21-year period (1993 to 2013 inclusive), we investigated 12 incidents of mortality of multiple (2 − 80+) Common starlings (Sturnus vulgaris) in Great Britain that appeared to be due to drowning. More than ten birds were affected in ten of these reported incidents. These incidents always occurred during the spring and early summer months and usually involved juvenile birds. In all cases, circumstantial evidence and post-mortem examinations indicated drowning to be the most likely cause of death with no underlying disease found. A behavioural explanation seems likely, possibly related to the gregarious nature of this species combined with juvenile inexperience in identifying water hazards. A review of data from the ringed bird recovery scheme across Great Britain (1909–2013 inclusive) of both starlings and Common blackbirds (Turdus merula), also a common garden visitor, identified additional suspected drowning incidents, which were significantly more common in the former species, supporting a species predisposition to drowning. For each species there was a marked seasonal peak from April to August. Drowning should be included as a differential diagnosis when investigating incidents of multiple starling mortality, especially of juveniles. PMID:26601771

  16. Variation of Bacterial Community Diversity in Rhizosphere Soil of Sole-Cropped versus Intercropped Wheat Field after Harvest.

    PubMed

    Yang, Zhenping; Yang, Wenping; Li, Shengcai; Hao, Jiaomin; Su, Zhifeng; Sun, Min; Gao, Zhiqiang; Zhang, Chunlai

    2016-01-01

    As the major crops in north China, spring crops are usually planted from April through May every spring and harvested in fall. Wheat is also a very common crop traditionally planted in fall or spring and harvested in summer year by year. This continuous cropping system exhibited the disadvantages of reducing the fertility of soil through decreasing microbial diversity. Thus, management of microbial diversity in the rhizosphere plays a vital role in sustainable crop production. In this study, ten common spring crops in north China were chosen sole-cropped and four were chosen intercropped with peanut in wheat fields after harvest. Denaturing gradient gel electrophoresis (DGGE) and DNA sequencing of one 16S rDNA fragment were used to analyze the bacterial diversity and species identification. DGGE profiles showed the bacterial community diversity in rhizosphere soil samples varied among various crops under different cropping systems, more diverse under intercropping system than under sole-cropping. Some intercropping-specific bands in DGGE profiles suggested that several bacterial species were stimulated by intercropping systems specifically. Furthermore, the identification of these dominant and functional bacteria by DNA sequencing indicated that intercropping systems are more beneficial to improve soil fertility. Compared to intercropping systems, we also observed changes in microbial community of rhizosphere soil under sole-crops. The rhizosphere bacterial community structure in spring crops showed a strong crop species-specific pattern. More importantly, Empedobacter brevis, a typical plant pathogen, was only found in the carrot rhizosphere, suggesting carrot should be sown prudently. In conclusion, our study demonstrated that crop species and cropping systems had significant effects on bacterial community diversity in the rhizosphere soils. We strongly suggest sorghum, glutinous millet and buckwheat could be taken into account as intercropping crops with peanut

  17. Psychiatric disorders in youth in juvenile detention.

    PubMed

    Teplin, Linda A; Abram, Karen M; McClelland, Gary M; Dulcan, Mina K; Mericle, Amy A

    2002-12-01

    Given the growth of juvenile detainee populations, epidemiologic data on their psychiatric disorders are increasingly important. Yet, there are few empirical studies. Until we have better epidemiologic data, we cannot know how best to use the system's scarce mental health resources. Using the Diagnostic Interview Schedule for Children version 2.3, interviewers assessed a randomly selected, stratified sample of 1829 African American, non-Hispanic white, and Hispanic youth (1172 males, 657 females, ages 10-18 years) who were arrested and detained in Cook County, Illinois (which includes Chicago and surrounding suburbs). We present 6-month prevalence estimates by demographic subgroups (sex, race/ethnicity, and age) for the following disorders: affective disorders (major depressive episode, dysthymia, manic episode), anxiety (panic, separation anxiety, overanxious, generalized anxiety, and obsessive-compulsive disorders), psychosis, attention-deficit/hyperactivity disorder, disruptive behavior disorders (oppositional defiant disorder, conduct disorder), and substance use disorders (alcohol and other drugs). Nearly two thirds of males and nearly three quarters of females met diagnostic criteria for one or more psychiatric disorders. Excluding conduct disorder (common among detained youth), nearly 60% of males and more than two thirds of females met diagnostic criteria and had diagnosis-specific impairment for one or more psychiatric disorders. Half of males and almost half of females had a substance use disorder, and more than 40% of males and females met criteria for disruptive behavior disorders. Affective disorders were also prevalent, especially among females; more than 20% of females met criteria for a major depressive episode. Rates of many disorders were higher among females, non-Hispanic whites, and older adolescents. These results suggest substantial psychiatric morbidity among juvenile detainees. Youth with psychiatric disorders pose a challenge for the

  18. Juveniles' Motivations for Remaining in Prostitution

    ERIC Educational Resources Information Center

    Hwang, Shu-Ling; Bedford, Olwen

    2004-01-01

    Qualitative data from in-depth interviews were collected in 1990-1991, 1992, and 2000 with 49 prostituted juveniles remanded to two rehabilitation centers in Taiwan. These data are analyzed to explore Taiwanese prostituted juveniles' feelings about themselves and their work, their motivations for remaining in prostitution, and their difficulties…

  19. [Lung is also involved in juvenile dermatomyositis].

    PubMed

    Pouessel, G; Thumerelle, C; Nève, V; Santangelo, T; Flammarion, S; Pruvot, I; Tillie-Leblond, I; Deschildre, A

    2014-07-01

    Juvenile dermatomyositis is the leading cause of chronic idiopathic inflammatory myopathy of auto-immune origin in children. Lung involvement in inflammatory myopathies is well described in adults, involving mostly interstitial lung disease, aspiration pneumonia and alveolar hypoventilation. We propose to describe its specificities in children. Pulmonary involvement may be asymptomatic and therefore must be systematically screened for. In case of clinical or functional respiratory abnormality, a chest computed tomographic (CT) scan is necessary. In children, a decrease of respiratory muscle strength seems common and should be systematically and specifically searched for by non-invasive and reproducible tests (sniff test). Interstitial lung disease usually associates restrictive functional defect, impairment of carbon monoxide diffusion and interstitial lung disease on CT scan. As in adults, the first-line treatment of juvenile dermatomyositis is based on corticosteroids. Corticosteroid resistant forms require corticosteroid bolus or adjuvant immunosuppressive drugs (methotrexate or cyclosporine). There is no consensus in pediatrics for the treatment of diffuse interstitial lung disease. Complications of treatment, including prolonged steroid therapy, are frequent and therefore a careful assessment of the treatments risk-benefit ratio is necessary, especially in growing children. Copyright © 2014 Société nationale française de médecine interne (SNFMI). Published by Elsevier SAS. All rights reserved.

  20. Clinical significance of specific autoantibodies in juvenile dermatomyositis.

    PubMed

    Feldman, B M; Reichlin, M; Laxer, R M; Targoff, I N; Stein, L D; Silverman, E D

    1996-10-01

    To determine the prevalence and clinical association of myositis specific antibodies in an unselected group of patients with juvenile dermatomyositis (DM). The sera of 42 subjects, representing an unselected group of patients from a single center, with juvenile DM and 7 others with idiopathic inflammatory myopathy (IIM) were examined for the presence of myositis specific antibodies by immunodiffusion against calf thymus extract and immunoprecipitation with HeLa extract. Of the subjects with juvenile DM, only 2 had evidence of antibodies specific to myositis (anti-Mi2). Three other patients with juvenile DM had defined autoantibodies not usually considered to be specific to myositis. Two of the 3 subjects had anti-PM-Scl; both developed features of scleroderma after the juvenile DM remitted. The 5 subjects with defined autoantibodies did not differ clinically from the remainder of the subjects with the exception of the late development of scleroderma features in 2. Fourteen other subjects with juvenile DM had unidentified bands on immunoprecipitation, which may represent as yet undiscovered myositis specific antibodies. No myositis specific antibodies were detected in any of the 7 subjects with other IIM syndromes. Based on our findings, we do not recommend routine clinical testing for these antibodies in children with typical juvenile DM. Further study of the unidentified bands seen in our subjects may lead to better understanding of the clinical groupings and etiopathogenesis of childhood myositis.

  1. Juvenile-Onset OCD: Clinical Features in Children, Adolescents and Adults

    PubMed Central

    Mancebo, Maria C.; Garcia, Abbe M.; Pinto, Anthony; Freeman, Jennifer B.; Przeworski, Amy; Stout, Robert; Kane, Joshua S.; Eisen, Jane L.; Rasmussen, Steven A.

    2009-01-01

    Objective To examine clinical correlates of juvenile-onset OCD across the lifespan. Method Intake data collected from 257 consecutive participants with a juvenile-onset of OCD (20 children, 44 adolescents, and 193 adults) in a naturalistic study of the clinical course of OCD were examined. Participants and parents of juvenile participants completed a structured diagnostic interview, rater-administered severity measures, and self-report questionnaires. Results Children and adolescents (i.e. juveniles) shared similar features with the exception of age at onset and OCD symptom expression. Clinically meaningful differences between juvenile and adult participants were also found. Compared to adults, juveniles were more likely to be male, recall an earlier age at OCD onset, and have different lifetime comorbidity patterns. Conclusion Juvenile-onset OCD symptom expression is remarkably similar across the lifespan. However, findings also suggest clinically meaningful differences between juveniles and adults. Future work using a prospective design will improve our understanding of course patterns of juvenile-onset OCD. Significant Outcomes •Children were less likely than either adolescent or adults to report aggressive obsessions and mental rituals. •Males were overrepresented in the juvenile sample but gender was equally distributed in the adult sample •Compared to lifetime comorbidity patterns of adults, juveniles showed elevated rates of ADHD and lower rates of mood, substance use and eating disorders Limitations •The cross-sectional design with retrospective recall regarding course prior to study entry limits conclusions about the course of OCD. •The adult sample is limited to adults whose symptoms persisted into adulthood and therefore results cannot be generalized to all individuals with a juvenile-onset. •The small number of very young children (under age 10) may have limited power to detect differences among children and adolescents. PMID:18699949

  2. Dietary modulation of parathion-induced neurotoxicity in adult and juvenile rats.

    PubMed

    Liu, Jing; Karanth, Subramanya; Pope, Carey

    2005-06-01

    Previous studies indicated that dietary glucose (15% in drinking water) could markedly exacerbate the toxicity of parathion in adult rats. The present study evaluated the effect of consumption of the commonly used sweetener, high fructose corn syrup (HFCS), on parathion toxicity in adult and juvenile rats. Animals were given free access to either water or 15% HFCS in drinking water for a total of 10 days and challenged with parathion (6 or 18 mg/kg, s.c., for juveniles or adults, respectively) on the 4th day. Signs of cholinergic toxicity, body weight and chow/fluid intake were recorded daily. Acetylcholinesterase (AChE) activity and immunoreactivity (AChE-IR) in frontal cortex and diaphragm were measured at 2, 4, and 7 days after parathion. As HFCS was associated with significant reduction in chow intake, adult rats were also pair-fed to evaluate the effect of similar reduced chow intake alone on parathion toxicity. The results indicated that the cholinergic toxicity of parathion was significantly increased by HFCS feeding in both age groups. The excess sugar consumption, however, did not significantly affect parathion-induced AChE inhibition in either tissue or either age group. Enzyme immunoreactivity in frontal cortex was generally not affected in either age group while diaphragm AChE-IR was significantly reduced by parathion and HFCS alone in adult animals at 2 and 4 days timepoints, and more so by the combination of sugar feeding and parathion exposure in both age groups. Food restriction alone did not exacerbate parathion toxicity. While the mechanism(s) remains unclear, we conclude that voluntary consumption of the common sweetener HFCS can markedly amplify parathion acute toxicity in both juvenile and adult rats.

  3. Juvenile Delinquency: Research, Theory, and Comment.

    ERIC Educational Resources Information Center

    Moore, Bernice Milburn

    While this booklet on juvenile delinquency does not attempt a full review of the literature, it has been designed to further an understanding and appreciation of the social-psychological problems of deviant behavior. The booklet briefly covers the publicity which juvenile delinquency has been given in recent years, as well as the difficulties…

  4. "Scared Straight" and other juvenile awareness programs for preventing juvenile delinquency.

    PubMed

    Petrosino, A; Turpin-Petrosino, C; Buehler, J

    2002-01-01

    'Scared Straight' and other programmes involve organised visits to prison by juvenile delinquents or children at risk for criminal behavior. programmes are designed to deter participants from future offending through first-hand observation of prison life and interaction with adult inmates. These programmes remain in use world-wide despite studies and reviews questioning their effectiveness. To assess the effects of programmes comprising organised visits to prisons by juvenile delinquents (officially adjudicated or convicted by a juvenile court) or pre-delinquents (children in trouble but not officially adjudicated as delinquents), aimed at deterring them from criminal activity. Handsearching by the first author in identifying randomised field trials 1945-1993 relevant to criminology was augmented by structured searches of 16 electronic data bases, including the Campbell SPECTR database of trials and the Cochrane CCTR. Experts in the field were consulted and relevant citations were followed up. Studies that tested the effects of any program involving the organised visits of juvenile delinquents or children at-risk for delinquency to penal institutions were included. Studies that included overlapping samples of juvenile and young adults (e.g. ages 14-20) were included. We only considered studies that randomly or quasi-randomly (i.e. alternation) assigned participants to conditions. Each study had to have a no-treatment control condition with at least one outcome measure of "post-visit" criminal behavior. We report narratively on the nine eligible trials. We conducted one meta-analysis of post-intervention offending rates using official data. Information from other sources (e.g. self-report) was either missing from some studies or critical information was omitted (e.g. standard deviations). We examined the immediate post-treatment effects (i.e. "first-effects") by computing Odds Ratios (OR) for data on proportions of each group re-offending, and assumed both fixed and

  5. Developing a Policy for Controlled Substance Testing of Juveniles. Juvenile Accountability Incentive Block Grants (JAIBG) Program Bulletin.

    ERIC Educational Resources Information Center

    Crowe, Ann H.; Sydney, Linda

    This bulletin provides an overview of substance testing, describes major indicators of the need for such testing, and summarizes the research for recent trends in substance abuse. It examines the practices of implementing a policy of controlled substance testing for appropriate categories of juveniles within the juvenile justice system. A summary…

  6. Ultrasonographic measurement of the mechanical properties of the sole under the metatarsal heads.

    PubMed

    Wang, C L; Hsu, T C; Shau, Y W; Shieh, J Y; Hsu, K H

    1999-09-01

    The sole under the metatarsal heads functions as a shock absorber during walking and running. The mechanical properties of the sole provide the primary defense against the development of metatarsalgia and foot ulceration. However, limited information about these properties has been documented. In this study, we used ultrasonography to evaluate the mechanical properties, including unloaded thickness, compressibility index, elastic modulus, and energy dissipation ratio, of the sole in 20 healthy subjects. The unloaded thickness decreased progressively from the first to the fifth metatarsal heads, with values of 1.50, 1.36, 1.25, 1.14, and 1.04 cm. The sole under the first metatarsal head had the greatest values for the compressibility index and elastic modulus (55.9% and 1.39 kg/cm2), and the sole under the third metatarsal head had the smallest values (50.8% and 1.23 kg/cm2). The sole under the fifth metatarsal head had the greatest energy dissipation ratio (33.7%), followed by that under the third, second, first, and fourth metatarsal heads. Multivariate adjusted linear regression showed that the unloaded thickness, compressibility index, and elastic modulus values increased significantly with age and body weight (p < 0.05) and that the energy dissipation ratio increased significantly with body weight (p < 0.05)

  7. Public Schools and the Juvenile Justice System: Facilitating Relationships

    ERIC Educational Resources Information Center

    Mazzotti, Valerie L.; Higgins, Kyle

    2006-01-01

    This article describes the importance of facilitating relationships between schools and the Juvenile Justice System. Emphasis is placed on statistics concerning children/youth involved in the Juvenile Justice System and the current state of school programs. Strategies for developing integrated programs between schools and the Juvenile Justice…

  8. The effects of temperature and food availability on growth, flexibility in metabolic rates and their relationships in juvenile common carp.

    PubMed

    Zeng, Ling-Qing; Fu, Cheng; Fu, Shi-Jian

    2018-03-01

    Flexibility in phenotypic traits can allow organisms to handle environmental changes. However, the ecological consequences of flexibility in metabolic rates are poorly understood. Here, we investigated whether the links between growth and flexibility in metabolic rates vary between two temperatures. Common carp Cyprinus carpio were raised in three temperature treatments [the 18°C, 28°C and 28°C-food control (28°C-FC)] and fed to satiation of receiving food either once or twice daily for 4weeks. The morphology and metabolic rates (standard metabolic rate, SMR; maximum metabolic rate, MMR) were measured at the beginning and end of the experiment. The mean total food ingested by fish in the 28°C-FC treatment was the same as that by fish in the 18°C treatment at each food availability. The final SMR (not MMR and aerobic scope, AS=MMR-SMR) increased more in the 28°C and 28°C-FC treatments with twice-daily feedings than once-daily feedings. Fish in the 28°C treatment had a higher specific growth rate (SGR) than fish in the 28°C-FC and 18°C treatments at both food availabilities. However, no differences in feeding efficiency (FE) were found among the three treatments in fish fed twice daily. The flexibility in SMR was related to individual differences in SGR, not with food intake and FE; individuals who increased their SMR more had a smaller growth performance with twice-daily feedings at 28°C, but it did not exist at 18°C. Flexibility in SMR provides a growth advantage in juvenile common carp experiencing changes in food availability and this link is temperature-dependent. Copyright © 2017 Elsevier Inc. All rights reserved.

  9. Responding to the mental health and substance abuse needs of youth in the juvenile justice system: Ohio's Behavioral Health/Juvenile Justice Initiative.

    PubMed

    Kretschmar, Jeff M; Butcher, Fredrick; Kanary, Patrick J; Devens, Rebecca

    2015-11-01

    Nearly half a million inmates with mental health issues are housed in our country’s jails and prisons. The majority of juvenile justice-involved (JJI) youth have a history of behavioral health (mental health or substance use) problems. Multiple studies estimate that between 65% to 75% of juvenile justice-involved youth have at least one behavioral health disorder, and 20% to 30% report suffering from a serious behavioral disorder. With so many juveniles with behavioral health issues entering a system that was not designed to provide comprehensive treatment, communities are reevaluating their approach to juvenile justice. This article describes the origins and the results of Ohio’s Behavioral Health Juvenile Justice Initiative (BHJJ), a diversion program for juvenile justice-involved youth with behavioral health issues. The authors also discuss the key components of program success, offer advice to other jurisdictions considering implementing similar programming, and identify ways to take diversion programs to scale. (PsycINFO Database Record (c) 2016 APA, all rights reserved) (c) 2015 APA, all rights reserved).

  10. Estuarine Ecology of Juvenile Salmon in Western Alaska: a Review

    USGS Publications Warehouse

    Zimmerman, Christian E.; Hillgruber, Nicola

    2009-01-01

    In the late 1990s and early 2000s, large declines in numbers of chum salmon Oncorhynchus keta and Chinook salmon O. tshawytscha returning to the Arctic-YukonKuskokwim (AYK) region (Alaska, USA) illuminated the need for an improved understanding of the variables controlling salmon abundance at all life stages. In addressing questions about salmon abundance, large gaps in our knowledge of basic salmon life history and the critical early marine life stage were revealed. In this paper, results from studies conducted on the estuarine ecology of juvenile salmon in western Alaska are summarized and compared, emphasizing timing and distribution during outmigration, environmental conditions, age and growth, feeding, and energy content of salmon smolts. In western Alaska, water temperature dramatically changes with season, ranging from 0°C after ice melt in late spring/early summer to 19°C in July. Juvenile salmon were found in AYK estuaries from early May until August or September, but to date no information is available on their residence duration or survival probability. Chum salmon were the most abundant juvenile salmon reported, ranging in percent catch from <0.1% to 4.7% and most research effort has focused on this species. Abundances of Chinook salmon, sockeye salmon O. nerka, and pink salmon O. gorbuscha varied among estuaries, while coho salmon O. kisutch juveniles were consistently rare, never amounting to more than 0.8% of the catch. Dietary composition of juvenile salmon was highly variable and a shift was commonly reported from epibenthic and neustonic prey in lower salinity water to pelagic prey in higher salinity water. Gaps in the knowledge of AYK salmon estuarine ecology are still evident. For example, data on outmigration patterns and residence timing and duration, rearing conditions and their effect on diet, growth, and survival are often completely lacking or available only for few selected years and sites. Filling gaps in knowledge concerning salmon

  11. The World of Juvenile Justice According to the Numbers

    ERIC Educational Resources Information Center

    Rozalski, Michael; Deignan, Marilyn; Engel, Suzanne

    2008-01-01

    Intended to be an instructive, yet sobering, introduction to the complex and disturbing nature of the juvenile justice system, this article details the "numbers," including selected percentages, ratios, and dollar amounts, that are relevant to developing a better understanding of the juvenile justice system. General statistics about juvenile and…

  12. 28 CFR 0.94 - Office of Juvenile Justice and Delinquency Prevention.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Delinquency Prevention. The Office of Juvenile Justice and Delinquency Prevention is headed by an...., relating to juvenile delinquency, the improvement of juvenile justice systems and missing children. ... 28 Judicial Administration 1 2011-07-01 2011-07-01 false Office of Juvenile Justice and...

  13. 28 CFR 0.94 - Office of Juvenile Justice and Delinquency Prevention.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Delinquency Prevention. The Office of Juvenile Justice and Delinquency Prevention is headed by an...., relating to juvenile delinquency, the improvement of juvenile justice systems and missing children. ... 28 Judicial Administration 1 2012-07-01 2012-07-01 false Office of Juvenile Justice and...

  14. 28 CFR 0.94 - Office of Juvenile Justice and Delinquency Prevention.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Delinquency Prevention. The Office of Juvenile Justice and Delinquency Prevention is headed by an...., relating to juvenile delinquency, the improvement of juvenile justice systems and missing children. ... 28 Judicial Administration 1 2014-07-01 2014-07-01 false Office of Juvenile Justice and...

  15. 28 CFR 0.94 - Office of Juvenile Justice and Delinquency Prevention.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Delinquency Prevention. The Office of Juvenile Justice and Delinquency Prevention is headed by an...., relating to juvenile delinquency, the improvement of juvenile justice systems and missing children. ... 28 Judicial Administration 1 2013-07-01 2013-07-01 false Office of Juvenile Justice and...

  16. The use of autologous adult, allogenic juvenile, and combined juvenile-adult cartilage fragments for the repair of chondral defects.

    PubMed

    Bonasia, Davide Edoardo; Martin, James A; Marmotti, Antonio; Kurriger, Gail L; Lehman, Abigail D; Rossi, Roberto; Amendola, Annunziato

    2016-12-01

    The goal of the study was to evaluate the repair of chondral lesions treated with combined autologous adult/allogenic juvenile cartilage fragments, compared with isolated adult and isolated juvenile cartilage fragments. Fifty-eight adult (>16 week old) and five juvenile (<6 week old) New Zealand White female rabbits were used. A large osteochondral defect was created in the center of the femoral trochlea of adult rabbits. The rabbits were divided in four groups: Group 1 = untreated defects (controls); Group 2 = adult cartilage fragments; Group 3 = juvenile cartilage fragments; and Group 4 = adult + juvenile cartilage fragments. Killings were performed at 3 and 6 months. The defects were evaluated with ICRS macroscopic score, modified O'Driscoll score, and Collagen type II immunostaining. At 3 months, Group 4 performed better than Group 1, in terms of modified O'Driscoll score (p = 0.001) and Collagen type II immunostaining (p = 0.015). At 6 months, Group 4 showed higher modified O'Driscoll score (p = 0.003) and Collagen type II immunostaining score (p < 0.001) than Group 1. Histologically, also Group 3 performed better than Group 1 (p = 0.03), and Group 4 performed better than Group 2 (p = 0.004). Mixing adult and juvenile cartilage fragments improved cartilage repair in a rabbit model. In the clinical setting, a new "one-stage" procedure combining the two cartilage sources can be hypothesized, with the advantages of improved chondral repair and large defect coverage, because of the use of an off-the-shelf juvenile allograft. Further studies on larger animals and clinical trials are required to confirm these results.

  17. Juvenile idiopathic arthritis-associated uveitis.

    PubMed

    Clarke, Sarah L N; Sen, Ethan S; Ramanan, Athimalaipet V

    2016-04-27

    Juvenile idiopathic arthritis (JIA) is the most common rheumatic disease of childhood, with JIA-associated uveitis its most common extra-articular manifestation. JIA-associated uveitis is a potentially sight-threatening condition and thus carries a considerable risk of morbidity. The aetiology of the condition is autoimmune in nature with the predominant involvement of CD4(+) T cells. However, the underlying pathogenic mechanisms remain unclear, particularly regarding interplay between genetic and environmental factors. JIA-associated uveitis comes in several forms, but the most common presentation is of the chronic anterior uveitis type. This condition is usually asymptomatic and thus screening for JIA-associated uveitis in at-risk patients is paramount. Early detection and treatment aims to stop inflammation and prevent the development of complications leading to visual loss, which can occur due to both active disease and burden of disease treatment. Visually disabling complications of JIA-associated uveitis include cataracts, glaucoma, band keratopathy and macular oedema. There is a growing body of evidence for the early introduction of systemic immunosuppressive therapies in order to reduce topical and systemic glucocorticoid use. This includes more traditional treatments, such as methotrexate, as well as newer biological therapies. This review highlights the epidemiology of JIA-associated uveitis, the underlying pathogenesis and how affected patients may present. The current guidelines and criteria for screening, diagnosis and monitoring are discussed along with approaches to management.

  18. A Giant Juvenile Nasopharyngeal Angiofibroma

    PubMed Central

    Yüce, Salim; Uysal, İsmail Önder; Doğan, Mansur; Polat, Kerem; Şalk, İsmail; Müderris, Suphi

    2012-01-01

    Juvenile nasopharyngeal angiofibroma (JNA) are locally growing highly vascular tumours. They are treated primarily by surgical excision ranging from open approach to endoscopic approach. We presented a 20-year-old male with a giant nasopharyngeal juvenile angiofibroma obliterating the pterygopalatine fossa bilaterally, invasing the sphenoid bone and extending to the left nasal passage. His complaints were epistaxis and nasal obstruction. After embolization, the patient was treated surgically with endoscopic approach and discharged as cured without any complication. PMID:23714961

  19. Juvenile Justice and Public Policy: Toward a National Agenda.

    ERIC Educational Resources Information Center

    Schwartz, Ira M., Ed.

    Some of the most critical and troubling issues in juvenile justice are addressed to serve as a catalyst and resource for developing sound juvenile justice public policy decisions. The following chapters examine juvenile court policies, special issues, and cost-effective interventions, and present findings of a national survey of public attitudes…

  20. Synthesis of juvenile lamprey migration and passage research and monitoring at Columbia and Snake River Dams

    USGS Publications Warehouse

    Mesa, Matthew G.; Weiland, Lisa K.; Christiansen, Helena E.

    2016-01-01

    We compiled and summarized previous sources of data and research results related to the presence, numbers, and migration timing characteristics of juvenile (eyed macropthalmia) and larval (ammocoetes) Pacific lamprey Entosphenus tridentatus, in the Columbia River basin (CRB). Included were data from various screw trap collections, data from historic fyke net studies, catch records of lampreys at JBS facilities, turbine cooling water strainer collections, and information on the occurrence of lampreys in the diets of avian and piscine predators. We identified key data gaps and uncertainties that should be addressed in a juvenile lamprey passage research program. The goal of this work was to summarize information from disparate sources so that managers can use it to prioritize and guide future research and monitoring efforts related to the downstream migration of juvenile Pacific lamprey within the CRB. A common finding in all datasets was the high level of variation observed for CRB lamprey in numbers present, timing and spatial distribution. This will make developing monitoring programs to accurately characterize lamprey migrations and passage more challenging. Primary data gaps centered around our uncertainty on the numbers of juvenile and larval present in the system which affects the ability to assign risk to passage conditions and prioritize management actions. Recommendations include developing standardized monitoring methods, such as at juvenile bypass systems (JBS’s), to better document numbers and timing of lamprey migrations at dams, and use biotelemetry tracking techniques to estimate survival potentials for different migration histories.

  1. Integrating research, policy, and practice in juvenile justice education.

    PubMed

    Blomberg, Thomas G; Waldo, Gordon P

    2002-06-01

    This article provides an overview of the history and context leading to Florida's efforts to implement an evaluation-driven research and associated quality assurance system for its juvenile justice education policies and practices. The Juvenile Justice Educational Enhancement Program began implementing Florida's evaluation research and quality assurance system to juvenile justice education in 1998. The article includes a brief summary of articles comprising this special issue of Evaluation Review that address the Juvenile Justice Educational Enhancement Program's various functions, methodological components, data, preliminary findings, continuing evaluation research efforts, and impediments.

  2. Juvenile delinquency treatment and prevention: a literature review.

    PubMed

    May, Jessica; Osmond, Kristina; Billick, Stephen

    2014-09-01

    In the last three decades there has been ample research to demonstrate that instituting Multisystemic Therapy for serious juvenile offenders, keeping them in the community with intensive intervention, can significantly reduce recidivism. When there is recidivism, it is less severe than in released incarcerated juveniles. Multisystemic Therapy provides 24 h available parental guidance, family therapy, individual therapy, group therapy, educational support and quite importantly a change of peer group. In New York City, there is the new mandate through the Juvenile Justice Initiative to implement interventions to keep juvenile offenders in the community rather than sending them to be incarcerated. However, this paper aims to examine how teaching prosocial values in early childhood can reduce the incidence of first-time juvenile delinquency. Programs such as the Perry School Project will be discussed to demonstrate that although somewhat expensive, these innovative programs nonetheless are quite cost-effective as the cost to society of adjudication, incarceration and victim damages are significantly greater. Along with teaching prosocial 0020 values, there has been renewed interest in early identification of youth at risk for developing Antisocial Personality Disorder. An update is given on the status of both promising approaches in early intervention to prevent serious juvenile delinquency and hence adult criminality.

  3. Modelling the transport of common sole larvae in the southern North Sea: Influence of hydrodynamics and larval vertical movements

    NASA Astrophysics Data System (ADS)

    Savina, Marie; Lacroix, Geneviève; Ruddick, Kevin

    2010-04-01

    In the present work we used a particle-tracking model coupled to a 3D hydrodynamic model to study the combined effect of hydrodynamic variability and active vertical movements on the transport of sole larvae in the southern North Sea. Larval transport from the 6 main spawning grounds was simulated during 40 day periods starting on 2 plausible spawning dates, the 15/04 and the 01/05, during 2 years, 1995 and 1996. In addition to a "passive" behaviour, 3 types of active vertical movements inspired from previous studies have been tested: (1) Eggs and early larvae float in the surface waters, late larvae migrate toward the bottom and stay there until the end of the simulation; (2 and 3) Eggs float in the surface waters, early larvae perform diel vertical migrations in the surface waters, and (2) Late larvae perform diel vertical migrations in the bottom waters until the end of the simulation; or (3) Late larvae perform tidally synchronised vertical migrations in the bottom waters until the end of the simulation. These behaviours have been implemented in the model with vertical migration rates, positive or negative, which can account for buoyancy or real swimming activity. Variations in larval transport were analysed in terms of mean trajectories, final larvae distribution, larval retention above nurseries, and connectivity. Results suggest that the variations in larval retention above nurseries due to the varying hydrodynamic conditions are not consistent in space i.e. not the same for all the spawning sites. The effect of active vertical movements on larval transport is also not consistent in space: Effects of active vertical movements include decreased retention above nurseries, decreased transport and/or decreased horizontal dispersion of larvae through reduced vertical shear (depending on the zone). The variability in larval retention due to hydrodynamic variability is higher than variability due to differences in the behaviour of larvae. In terms of connectivity

  4. Juvenile idiopathic arthritis

    MedlinePlus

    ... www.ncbi.nlm.nih.gov/pubmed/21452260 . Long AR, Rouster-Stevens KA. The role of exercise therapy ... nlm.nih.gov/pubmed/21131338 . Wu EY, Bryan AR, Rabinovich CE. Juvenile idiopathic arthritis. In: Kliegman RM, ...

  5. Do juveniles help or hinder? Influence of juvenile offspring on maternal behavior and reproductive outcomes in wild chimpanzees (Pan troglodytes).

    PubMed

    Stanton, Margaret A; Lonsdorf, Elizabeth V; Pusey, Anne E; Murray, Carson M

    2017-10-01

    Compared to great apes, humans maintain a relatively rapid reproductive pace despite long periods of dependency. This seemingly contradictory set of traits is made possible by weaning offspring before nutritional independence and alloparents who help provide care. In traditional societies, this help may be provided to mothers in part by their juvenile offspring who carry, supervise, or provision younger siblings. In contrast to humans, chimpanzees (Pan troglodytes) are nutritionally independent after weaning, yet juveniles continue to travel with their mother and younger sibling for an additional 4-5 years. This continued association could be costly to the mother if she continues to invest in weaned offspring. Alternately, while juvenile chimpanzees do not typically provision younger siblings, their presence and social interaction with infants may allow mothers to focus on other tasks. In this study, we investigate the costs and benefits to mothers of continued association with juveniles in wild chimpanzees. Using 26 years of long-term behavioral data we examined how maternal activity budgets varied based on the presence of a dependent juvenile offspring. We found that continued social interaction between mothers and juveniles does not influence the mother's time allocated to interacting with the younger infant, her feeding, resting, or travel time, or time socializing with other community members. Instead, mothers may benefit from the additional social interaction and/or relationship with their older offspring. Using 45 years of demographic data we found that those offspring who had an older sibling tended to be more likely to survive each year from birth to 8 years than those without an older sibling. Additionally, interbirth intervals were more likely to end when the female had an older offspring present. A mutually beneficial mother-juvenile dynamic in great apes provides insight into continued association between mothers and offspring after nutritional

  6. Critical Factors in Mental Health Programming for Juveniles in Corrections Facilities

    ERIC Educational Resources Information Center

    Underwood, Lee A.; Phillips, Annie; von Dresner, Kara; Knight, Pamela D.

    2006-01-01

    Juveniles with mental health and other specialized needs are overrepresented in the juvenile justice system, and while juvenile corrections have not historically provided standardized and evidence-based mental health services for its incarcerated youth, the demand is evident. The reality is that juveniles with serious mental illness are committed…

  7. Sports Participation and Juvenile Delinquency: A Meta-Analytic Review.

    PubMed

    Spruit, Anouk; van Vugt, Eveline; van der Put, Claudia; van der Stouwe, Trudy; Stams, Geert-Jan

    2016-04-01

    Participation in sports activities is very popular among adolescents, and is frequently encouraged among youth. Many psychosocial health benefits in youth are attributed to sports participation, but to what extent this positive influence holds for juvenile delinquency is still not clear on both the theoretical and empirical level. There is much controversy on whether sports participation should be perceived as a protective or a risk factor for the development of juvenile delinquency. A multilevel meta-analysis of 51 published and unpublished studies, with 48 independent samples containing 431 effect sizes and N = 132,366 adolescents, was conducted to examine the relationship between sports participation and juvenile delinquency and possible moderating factors of this association. The results showed that there is no overall significant association between sports participation and juvenile delinquency, indicating that adolescent athletes are neither more nor less delinquent than non-athletes. Some study, sample and sports characteristics significantly moderated the relationship between sports participation and juvenile delinquency. However, this moderating influence was modest. Implications for theory and practice concerning the use of sports to prevent juvenile delinquency are discussed.

  8. Neurocircuitry of fear extinction in adult and juvenile rats.

    PubMed

    Ganella, Despina E; Nguyen, Ly Dao; Lee-Kardashyan, Luba; Kim, Leah E; Paolini, Antonio G; Kim, Jee Hyun

    2018-06-10

    In contrast to adult rodents, juvenile rodents fail to show relapse following extinction of conditioned fear. Using different retrograde tracers injected into the infralimbic cortex (IL) and the ventral hippocampus (vHPC) in conjunction with c-Fos and parvalbumin (PV) immunochemistry, we investigated the neurocircuitry of extinction in juvenile and adult rats. Regardless of fear extinction or retrieval, juvenile rats had more c-Fos+ neurons in the basolateral amygdala (BLA) compared to adults, and showed a higher proportion of c-Fos+ IL-projecting neurons. Adult rats had more activated vHPC-projecting BLA neurons following extinction compared to retrieval, a difference not observed in juvenile rats. The number of activated vHPC- or IL-projecting BLA neurons was significantly correlated with freezing levels in adult, but not juvenile, rats. We also identified neurons in the BLA that simultaneously project to the IL and vHPC activated in the retrieval groups at both ages. This study provides novel insight into the neural process underlying extinction, especially in the juvenile period. Copyright © 2018 Elsevier B.V. All rights reserved.

  9. Activation of Basolateral Amygdala in Juvenile C57BL/6J Mice During Social Approach Behavior

    PubMed Central

    Ferri, Sarah L.; Kreibich, Arati S.; Torre, Matthew; Piccoli, Cara T.; Dow, Holly; Pallathra, Ashley A.; Li, Hongzhe; Bilker, Warren B.; Gur, Ruben C.; Abel, Ted; Brodkin, Edward S.

    2016-01-01

    There is a strong need to better understand the neurobiology of juvenile sociability (tendency to seek social interaction), a phenotype of central relevance to autism spectrum disorders (ASD). Although numerous genetic mouse models of ASD showing reduced sociability have been reported, and certain brain regions, such as the amygdala, have been implicated in sociability, there has been little emphasis on delineating brain structures and circuits activated during social interactions in the critical juvenile period of the mouse strain that serves as the most common genetic background for these models—the highly sociable C57BL/6J (B6) strain. We measured expression of the immediate early genes Fos and Egr-1 to map activation of brain regions following the Social Approach Test (SAT) in juvenile male B6 mice. We hypothesized that juvenile B6 mice would show activation of the amygdala during social interactions. The basoloateral amygdala (BLA) was activated by social exposure in highly sociable, 4-week-old B6 mice. In light of these data, and the many lines of evidence indicating alteration of amygdala circuits in human ASD, future studies are warranted to assess structural and functional alterations in the BLA, particularly at BLA synapses, in various mouse models of ASD. PMID:27520082

  10. Sole larval supply to coastal nurseries: Interannual variability and connectivity at interregional and interpopulation scales

    NASA Astrophysics Data System (ADS)

    Savina, M.; Lunghi, M.; Archambault, B.; Baulier, L.; Huret, M.; Le Pape, O.

    2016-05-01

    Simulating fish larval drift helps assess the sensitivity of recruitment variability to early life history. An individual-based model (IBM) coupled to a hydrodynamic model was used to simulate common sole larval supply from spawning areas to coastal and estuarine nursery grounds at the meta-population scale (4 assessed stocks), from the southern North Sea to the Bay of Biscay (Western Europe) on a 26-yr time series, from 1982 to 2007. The IBM allowed each particle released to be transported by currents, to grow depending on temperature, to migrate vertically depending on development stage, to die along pelagic stages or to settle on a nursery, representing the life history from spawning to metamorphosis. The model outputs were analysed to explore interannual patterns in the amounts of settled sole larvae at the population scale; they suggested: (i) a low connectivity between populations at the larval stage, (ii) a moderate influence of interannual variation in the spawning biomass, (iii) dramatic consequences of life history on the abundance of settling larvae and (iv) the effects of climate variability on the interannual variability of the larvae settlement success.

  11. Incorporating movement patterns to improve survival estimates for juvenile bull trout

    USGS Publications Warehouse

    Bowerman, Tracy; Budy, Phaedra

    2012-01-01

    Populations of many fish species are sensitive to changes in vital rates during early life stages, but our understanding of the factors affecting growth, survival, and movement patterns is often extremely limited for juvenile fish. These critical information gaps are particularly evident for bull trout Salvelinus confluentus, a threatened Pacific Northwest char. We combined several active and passive mark–recapture and resight techniques to assess migration rates and estimate survival for juvenile bull trout (70–170 mm total length). We evaluated the relative performance of multiple survival estimation techniques by comparing results from a common Cormack–Jolly–Seber (CJS) model, the less widely used Barker model, and a simple return rate (an index of survival). Juvenile bull trout of all sizes emigrated from their natal habitat throughout the year, and thereafter migrated up to 50 km downstream. With the CJS model, high emigration rates led to an extreme underestimate of apparent survival, a combined estimate of site fidelity and survival. In contrast, the Barker model, which allows survival and emigration to be modeled as separate parameters, produced estimates of survival that were much less biased than the return rate. Estimates of age-class-specific annual survival from the Barker model based on all available data were 0.218±0.028 (estimate±SE) for age-1 bull trout and 0.231±0.065 for age-2 bull trout. This research demonstrates the importance of incorporating movement patterns into survival analyses, and we provide one of the first field-based estimates of juvenile bull trout annual survival in relatively pristine rearing conditions. These estimates can provide a baseline for comparison with future studies in more impacted systems and will help managers develop reliable stage-structured population models to evaluate future recovery strategies.

  12. Development of acute hydrocephalus does not change brain tissue mechanical properties in adult rats, but in juvenile rats.

    PubMed

    Pong, Alice C; Jugé, Lauriane; Bilston, Lynne E; Cheng, Shaokoon

    2017-01-01

    previous findings in juvenile hydrocephalic rats which had significantly less brain compression (as the brain circumference was able to stretch with the cranium due to the open skull sutures) and had a significant increase in caudate putamen stiffness. These results suggest that change in brain mechanical properties in hydrocephalus is complex and is not solely dependent on brain tissue deformation. Further studies on the interactions between brain tissue stiffness, deformation, tissue oedema and neural damage are necessary before MRE can be used as a tool to track changes in brain biomechanics in hydrocephalus.

  13. Seizures in juvenile Huntington's disease: frequency and characterization in a multicenter cohort.

    PubMed

    Cloud, Leslie J; Rosenblatt, Adam; Margolis, Russel L; Ross, Christopher A; Pillai, Jagan A; Corey-Bloom, Jody; Tully, Hannah M; Bird, Thomas; Panegyres, Peter K; Nichter, Charles A; Higgins, Donald S; Helmers, Sandra L; Factor, Stewart A; Jones, Randi; Testa, Claudia M

    2012-12-01

    Little is known about the epilepsy that often occurs in the juvenile form of Huntington's disease (HD), but is absent from the adult-onset form. The primary aim of this study was to characterize the seizures in juvenile HD (JHD) subjects with regard to frequency, semiology, defining EEG characteristics, and response to antiepileptic agents. A multicenter, retrospective cohort was identified by database query and/or chart review. Data on age of HD onset, primary HD manifestations, number of CAG repeats, the presence or absence of seizures, seizure type(s), antiepileptic drugs used, subjects' response to antiepileptic drugs (AEDs), and EEG results were assembled, where available. Ninety subjects with genetically confirmed JHD were included. Seizures were present in 38% of subjects and were more likely to occur with younger ages of HD onset. Generalized tonic-clonic seizures were the most common seizure type, followed by tonic, myoclonic, and staring spells. Multiple seizure types commonly occurred within the same individual. Data on EEG findings and AED usage are presented. Seizure risk in JHD increases with younger age of HD onset. Our ability to draw firm conclusions about defining EEG characteristics and response to AEDs was limited by the retrospective nature of the study. Future prospective studies are required. Copyright © 2012 Movement Disorder Society.

  14. Juvenile hormone activity in Dysdercus cingulatus Fabr by juvenile hormone esterase inhibitor, OTFP.

    PubMed

    Elayidam, U Gayathri; Muraleedharan, D

    2007-10-01

    Application of juvenile hormone esterase inhibitor 3-octylthio-1,1,1- trifluropropan-2-one (OTFP) to 5th instar nymphs and virgin females of D. cingulatus revealed the profound role played by juvenile hormone esterase (JHE) in metamorphosis and reproduction. The ability of OTFP to cause delay and the formation of malformed nymphs, suggests that inhibition of JHE in vivo maintains a higher than normal hemolymph JH titer. It is obvious that OTFP does inhibit in vivo JHE activity in late instar nymphs. Further, the application of JHE inhibitor, OTFP to virgin females demonstrates that substituted trifluropropanones can indirectly stimulate egg development by inhibiting JHE activity in virgin females.

  15. Mental Health Referrals Reduce Recidivism in First-Time Juvenile Offenders, But How Do We Determine Who is Referred?

    PubMed

    Zeola, Michael P; Guina, Jeffrey; Nahhas, Ramzi W

    2017-03-01

    While psychiatric disorders are common among juvenile delinquents, many mental health problems go undetected, increasing the likelihood for persistent difficulties. This is the first known study to examine mental health referral rates and recidivism in the juvenile justice system. In addition to the study, we review juvenile justice mental health screening to improve detection and treatment. Juvenile criminal records in conjunction with behavioral health screenings were analyzed to determine differences in referrals and recidivism among first time offenders. Recidivism rates were significantly lower (p = 0.04) and time to recidivism was significantly longer (p = 0.03) for those referred specifically for mental health services than for those without any referrals, even after adjusting for offense severity. While black youths had a significantly higher recidivism rate (p = 0.02) and a shorter time to recidivism (p = 0.009) than white youths, there was no significant difference between races when referred specifically for mental health services. Among the groups studied, black youths had the most profound positive effect from mental health referrals (p < 0.0001). This study indicates the importance of detecting mental health problems among juvenile delinquents, especially for black offenders. The apparent protective effect of mental health interventions necessitates screening that better identifies underlying psychosocial factors rather than strict reliance upon diagnostic criteria and self-report. Broader or even universal mental health referrals for juvenile offenders could reduce future legal system involvement and costs to society. We review potential reasons that mental health problems go undetected and provide recommendations.

  16. Juvenile Offenders and Victims: 2006 National Report

    ERIC Educational Resources Information Center

    Snyder, Howard N.; Sickmund, Melissa

    2006-01-01

    This report presents comprehensive information on juvenile crime, violence, and victimization and on the juvenile justice system. This report brings together the latest available statistics from a variety of sources and includes numerous tables, graphs, and maps, accompanied by analyses in clear, nontechnical language. The report offers Congress,…

  17. Juvenile Obesity, Physical Activity, and Lifestyle Changes.

    ERIC Educational Resources Information Center

    Bar-Or, Oded

    2000-01-01

    Because many obese children become obese adults, the recent rapid increase in juvenile obesity poses a major public health challenge. Enhanced physical activity is a cornerstone in a multidisciplinary approach to preventing and treating juvenile obesity. Giving exercise recommendations focused for obese youth is critical. Cutting down on sedentary…

  18. Preliminary evidence of altered biomechanics in adolescents with juvenile fibromyalgia.

    PubMed

    Sil, Soumitri; Thomas, Staci; DiCesare, Christopher; Strotman, Daniel; Ting, Tracy V; Myer, Gregory; Kashikar-Zuck, Susmita

    2015-01-01

    Juvenile fibromyalgia (FM) is characterized by chronic musculoskeletal pain and marked reduction in physical activity. Despite recommendations for exercise to manage juvenile FM pain, exercise adherence is poor. Because of pain and activity avoidance, adolescents with juvenile FM are at risk for altered joint mechanics that may make them susceptible to increased pain and reduced tolerance for exercise. The primary aim of this study was to assess functional deficits in patients with juvenile FM compared to healthy controls using objective biomechanical assessment. Female adolescent patients with juvenile FM (n = 17) and healthy controls (n = 14) completed biomechanical assessments, including gait analysis and tests of lower extremity strength (isokinetic knee extension/flexion and hip abduction) and functional performance (drop vertical jump test) along with self-reported measures of disability (Functional Disability Inventory), pain intensity, depressive symptoms (Children's Depression Inventory), and fear of movement (Tampa Scale of Kinesiophobia). Patients with juvenile FM demonstrated mild deficiencies in walking gait and functional performance (P < 0.05 for both) and significantly lower left knee extension and flexion strength (18-22% deficit) and bilateral hip abduction strength (34-38%) compared with healthy controls (P < 0.008 for all). Patients with juvenile FM reported significantly higher functional disability, pain intensity, depressive symptoms, and fear of movement relative to controls (P < 0.01 for all). This study showed that adolescents with juvenile FM exhibited objective alterations in biomechanics and self-reported fear of movement that may have reinforced their activity avoidance. Interventions for juvenile FM should include a focus on correcting functional deficits and instilling greater confidence in adolescents with juvenile FM to engage in exercise to improve functional outcomes. Copyright © 2015 by the American College of Rheumatology.

  19. Update on the Treatment of Uveitis in Patients with Juvenile Idiopathic Arthritis: A Review.

    PubMed

    Asproudis, Ioannis; Katsanos, Andreas; Kozeis, Nikolaos; Tantou, Alexandra; Konstas, Anastasios G

    2017-12-01

    Chronic uveitis is a common extra-articular manifestation of juvenile idiopathic arthritis. The classic clinical picture is one of chronic anterior uveitis, which usually remains asymptomatic until ocular complications arise. The risk of uveitis is increased in girls with an early onset of oligoarthritis and positive antinuclear antibodies. Even though the inflammation in patients with juvenile idiopathic arthritis is initially limited in the anterior part of the eye, chronic active inflammation may eventually cause significant damage to the posterior pole. Complications may include band keratopathy, cataract, secondary glaucoma, posterior synechiae, cystoid macular edema, and hypotony. The cooperation of ophthalmologists with rheumatologists may help define the best treatment plan. The ophthalmic therapeutic regimen includes topical corticosteroids and mydriatics, while in severe cases immunosuppressive and biological agents are introduced. Surgical management of complications might be needed.

  20. Physiotherapy in pauciarticular juvenile idiopathic arthritis. Case study.

    PubMed

    Zuk, Beata; Kaczor, Zofia; Zuk-Drążyk, Berenika; Księżopolska-Orłowska, Krystyna

    2014-01-01

    Juvenile idiopathic arthritis (JIA) is the most common arthropathy of childhood and adolescence. This term encompasses a group of chronic systemic inflammatory diseases of the connective tissue which cause arthritis in patients under 16 years of age lasting at least 6 weeks. The authors presented the characteristic features of physiotherapy based on functional examination results on the basis of two cases of girls with pauciarticular JIA treated according to an established pharmacological regimen. Physiotherapy should be introduced at an early stage of the disease. Kinesiotherapy preceded by history-taking and a functional examination of the patient, has to focus on both primary and secondary joint lesions.

  1. Ultrasound-guided corticosteroid injection of the subtalar joint for treatment of juvenile idiopathic arthritis.

    PubMed

    Young, Cody M; Horst, Deanna M; Murakami, James W; Shiels, William E

    2015-07-01

    The subtalar joint is commonly affected in children with juvenile idiopathic arthritis and is challenging to treat percutaneously. To describe the technique for treating the subtalar joint with US-guided corticosteroid injections in children and young adults with juvenile idiopathic arthritis and to evaluate the safety of the treatment. We retrospectively analyzed 122 patients (age 15 months-29 years) with juvenile idiopathic arthritis who were referred by a pediatric rheumatologist for corticosteroid injection therapy for symptoms related to the hindfoot or ankle. In these patients the diseased subtalar joint was targeted for therapy, often in conjunction with adjacent affected joints or tendon sheaths of the ankle. We used a protocol based on age, weight and joint for triamcinolone hexacetonide or triamcinolone acetonide dose prescription. We describe the technique for successful treatment of the subtalar joint. A total of 241 subtalar joint corticosteroid injections were performed under US guidance, including 68 repeat injections for recurrent symptoms in 26 of the 122 children and young adults. The average time interval between repeat injections was 24.8 months (range 2.2-130.7 months, median 14.2 months). Subcutaneous tissue atrophy and skin hypopigmentation were the primary complications observed. These complications occurred in 3.9% of the injections. With appropriate training and practice, the subtalar joint can be reliably and safely targeted with US-guided corticosteroid injection to treat symptoms related to juvenile idiopathic arthritis.

  2. Exposure to teflubenzuron negatively impacts exploratory behavior, learning and activity of juvenile European lobster (Homarus gammarus).

    PubMed

    Cresci, Alessandro; Samuelsen, Ole B; Durif, Caroline M F; Bjelland, Reidun M; Skiftesvik, Anne Berit; Browman, Howard I; Agnalt, Ann-Lisbeth

    2018-09-30

    Infestations with salmon lice, a parasitic copepod, is a major problem in the salmon farming industry. Teflubenzuron is an in-feed pharmaceutical applied to control lice outbreaks; the standard medication is 10 mg per kg fish per day for seven days. Surveys reveal that teflubenzuron accumulates and persists in the sediment around fish farms and causes deformities and mortality in juvenile European lobster (Homarus gammarus), a species commonly found in the vicinity of salmon farms in Norway. To date, there is no information on sub-lethal effects of teflubenzuron on, for example, behavior. We conducted an experiment to assess possible difference in the shelter seeking behavior of teflubenzuron-exposed (N = 19) vs. not exposed (N = 19) H. gammarus juveniles. The teflubenzuron-exposed juveniles had been given very low concentrations, 1.7 µg per pellet twice per week for 113 days prior to this experiment. The concentration of teflubenzuron was estimated to be less than 1 ng/g lobster when they were tested in the behavior experiment. Animals were placed in a lane with a shelter at one end. Once a lobster had found and entered the shelter, they were repeatedly displaced back to the opposite end of the lane, for a total of 3 repeated runs per animal. Three of the exposed juveniles failed to settle in the shelter, and the remaining teflubenzuron-exposed animals took significantly more time to explore the environment and to find and recognize shelter. Furthermore, exposed lobsters also exhibited slower walking speed compared to the controls. These results demonstrate that teflubenzuron significantly reduces exploratory behavior, learning and activity of juvenile H. gammarus. Thus, exposure to teflubenzuron could increase predation mortality of juvenile lobsters in the wild. Copyright © 2018. Published by Elsevier Inc.

  3. Prevention of Serious and Violent Juvenile Offending. Juvenile Justice Bulletin.

    ERIC Educational Resources Information Center

    Wasserman, Gail A.; Miller, Laurie S.; Cothern, Lynn

    This bulletin explores the proximal risk factors for juvenile offending, reviews the early developmental precursors to violent offending, and summarizes approaches to prevention. It also discusses components of intervention programs, limitations of single-focus prevention, examples of multi systemic interventions, and limitations of prevention…

  4. Effects of nonylphenol on juveniles and adults in the grey mullet, Liza aurata.

    PubMed

    Cionna, Cristina; Maradonna, Francesca; Olivotto, Ike; Pizzonia, Gianluca; Carnevali, Oliana

    2006-10-01

    The aim of this study was to investigate the effects of nonylphenol (NP), an environmental pollutant known to have estrogenic activity, on grey mullets. Juvenile and adult physiology was monitored by the expression of vitellogenin (VTG), which is commonly induced by estrogenic pollutants, and cytochrome P4501A1(CYP1A1) as a first signal of detoxification. The dose-response estrogenic effects of NP (25, 100, 1000 microg/l) on hepatic VTG transcript and plasma protein levels, as well as on CYP1A1 transcription and its associated ethoxyresorufin O-deethylase (EROD) activity, were assessed in juvenile Liza aurata; 17beta-estradiol (E2; 2 microg/l) treatment for 1 week served as positive control. In addition, we investigated VTG and CYP1A1 expression in adult males injected with two NP at 0.25 or 250 mg/kg body weight relative to 0.07 mg/kg of E2 as a positive control. Juvenile exposure to NP failed to induce a measurable VTG response. In the adult fish, NP exerted estrogenic effects only at the highest dose injected. E2 treatment elicited VTG induction only in adults in a time-related manner. In contrast, NP treatment induced a dose-dependent decrease in CYP1A1 response in both juveniles and adults. An inhibitory effect of E2 on CYP1A1 was evident in all treatment groups as well. These data suggest that, in biomonitoring studies, testing the expression of different biomarkers may provide a more realistic picture of the environmental conditions.

  5. Improving Quality of Shoe Soles Product using Six Sigma

    NASA Astrophysics Data System (ADS)

    Jesslyn Wijaya, Athalia; Trusaji, Wildan; Akbar, Muhammad; Ma’ruf, Anas; Irianto, Dradjad

    2018-03-01

    A manufacture in Bandung produce kind of rubber-based product i.e. trim, rice rollers, shoe soles, etc. After penetrating the shoe soles market, the manufacture has met customer with tight quality control. Based on the past data, defect level of this product was 18.08% that caused the manufacture’s loss of time and money. Quality improvement effort was done using six sigma method that included phases of define, measure, analyse, improve, and control (DMAIC). In the design phase, the object’s problem and definition were defined. Delphi method was also used in this phase to identify critical factors. In the measure phase, the existing process stability and sigma quality level were measured. Fishbone diagram and failure mode and effect analysis (FMEA) were used in the next phase to analyse the root cause and determine the priority issues. Improve phase was done by designing alternative improvement strategy using 5W1H method. Some improvement efforts were identified, i.e. (i) modifying design of the hanging rack, (ii) create pantone colour book and check sheet, (iii) provide pedestrian line at compound department, (iv) buying stop watch, and (v) modifying shoe soles dies. Some control strategies for continuous improvement were proposed such as SOP or reward and punishment system.

  6. Intelligence Score Profiles of Female Juvenile Offenders

    ERIC Educational Resources Information Center

    Werner, Shelby Spare; Hart, Kathleen J.; Ficke, Susan L.

    2016-01-01

    Previous studies have found that male juvenile offenders typically obtain low scores on measures of intelligence, often with a pattern of higher scores on measures of nonverbal relative to verbal tasks. The research on the intelligence performance of female juvenile offenders is limited. This study explored the Wechsler Intelligence Scale for…

  7. Juvenile Anorexia Nervosa: Family Therapy's Natural Niche

    ERIC Educational Resources Information Center

    Fishman, H. Charles

    2006-01-01

    Juvenile Anorexia Nervosa (AN) is a severe problem both in terms of presenting symptomatology and its tendency toward chronicity. Researchers have consistently shown that family-based approaches are superior to individual approaches for the treatment of juvenile AN. This article addresses the capacity deficit of trained family therapists to treat…

  8. Resiliency Scales for Children and Adolescents: Profiles of Juvenile Offenders

    ERIC Educational Resources Information Center

    Mowder, Melissa H.; Cummings, Jack A.; McKinney, Robert

    2010-01-01

    An exploratory study of resiliency profiles of male and female juvenile offenders committed to a juvenile correctional facility was conducted. The goal of the present study was to examine juvenile offenders' positive characteristics (e.g., adaptability, optimism, self-efficacy, tolerance of differences). To assess positive characteristics and…

  9. Effects of chronic dietary exposure of zinc oxide nanoparticles on the serum protein profile of juvenile common carp (Cyprinus carpio L.).

    PubMed

    Chupani, Latifeh; Zusková, Eliška; Niksirat, Hamid; Panáček, Aleš; Lünsmann, Vanessa; Haange, Sven-Bastiaan; von Bergen, Martin; Jehmlich, Nico

    2017-02-01

    Zinc oxide (ZnO) nanoparticles (NPs) have been dramatically used in industry, biology, and medicine. Despite their interesting physico-chemical properties for application in various industrial, medical, and consumer products, safe use of ZnO NPs are under challenges due to the inadequate information related to their toxicological endpoints. Proteomics was applied to evaluate the sub-lethal effects of dietary exposure to ZnO NPs on serum proteome profile of juvenile common carp, (Cyprinus carpio). Therefore, ZnO NPs solution (500mgkg -1 of feed) was added to a commercial carp feed for six weeks. We compared the serum proteome profile from 7 controls and 7 treated fish. In addition, zinc accumulation were measured in intestine, liver, gill and brain. In total, we were able to identify 326 proteins from 6845 distinct peptides. As a result of the data analysis, the abundance levels of four proteins were significantly altered (fold change (fc) ≥2 and p<0.05) after dietary exposure to ZnO NPs. The protein levels of the complement component C4-2 (fc 2.5) and the uncharacterised protein encoded by kng1 (fc 5.8) were increased and major histocompatibility class I (fc 4.9) and the uncharacterised protein encoded by lum (fc 3.5) were decreased (fc 2.5). Molecular pathway analysis revealed four canonical pathways including acute-phase response signalling, liver and retinoid X receptors activation, and intrinsic and extrinsic prothrombin activation pathways as significantly regulated in the treated fish. No significant difference was observed for zinc accumulation in exposed fish compared to controls. In summary, despite no apparent accumulation, ZnO NPs exposure to common carp probably disturbs the fish homeostasis by affecting proteins of the haematological and the immune systems. Copyright © 2016 Elsevier B.V. All rights reserved.

  10. 77 FR 61641 - Meeting of the Federal Advisory Committee on Juvenile Justice

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-10

    ... Federal Advisory Committee on Juvenile Justice AGENCY: Office of Juvenile Justice and Delinquency... Office of Juvenile Justice and Delinquency Prevention (OJJDP) announces a meeting of the Federal Advisory...) of the Juvenile Justice and Delinquency Prevention Act of 2002. The FACJJ is composed of...

  11. Yolo Bypass Juvenile Salmon Utilization Study 2016—Summary of acoustically tagged juvenile salmon and study fish release, Sacramento River, California

    USGS Publications Warehouse

    Liedtke, Theresa L.; Hurst, William R.

    2017-09-12

    The Yolo Bypass is a flood control bypass in Sacramento Valley, California. Flood plain habitats may be used for juvenile salmon rearing, however, the potential value of such habitats can be difficult to evaluate because of the intermittent nature of inundation events. The Yolo Bypass Juvenile Salmon Utilization Study (YBUS) used acoustic telemetry to evaluate the movements and survival of juvenile salmon adjacent to and within the Yolo Bypass during the winter of 2016. This report presents numbers, size data, and release data (times, dates, and locations) for the 1,197 acoustically tagged juvenile salmon released for the YBUS from February 21 to March 18, 2016. Detailed descriptions of the surgical implantation of transmitters are also presented. These data are presented to support the collaborative, interagency analysis and reporting of the study findings.

  12. A comparison of biomarker responses in juvenile diploid and triploid African catfish, Clarias gariepinus, exposed to the pesticide butachlor

    EPA Science Inventory

    Influence of waterborne butachlor (BUC), a commonly used pesticide, on morphometric, biochemical, and molecular biomarkers was evaluated in juvenile, full sibling, diploid and triploid African catfish (Clarias gariepinus). Fish were exposed for 21 days to one of three concentrati...

  13. Prevalence of traumatic brain injury in juvenile offenders: a meta-analysis.

    PubMed

    Farrer, Thomas J; Frost, R Brock; Hedges, Dawson W

    2013-01-01

    Studies of traumatic brain injury (TBI) among adult populations demonstrate that such injuries can lead to aggressive behaviors. Related findings suggest that incarcerated individuals have high rates of brain injuries. Such studies suggest that traumatic brain injury may be related to the etiology and recidivism of criminal behavior. Relatively few studies have examined the prevalence of TBI using a delinquent juvenile sample. In order to assess the relationship between TBI and juvenile offender status, the current study used meta-analytic techniques to examine the odds of having a TBI among juvenile offenders. Across 9 studies, we found that approximately 30% of juvenile offenders have sustained a previous brain injury. Across 5 studies that used a control group, a calculated summary odds ratio of 3.37 suggests that juvenile offenders are significantly more likely to have a TBI compared to controls. Results suggest that the rate of TBIs within the juvenile offender population is significant and that there may be a relationship between TBIs and juvenile criminal behavior.

  14. Rocker bottom soles alter the postural response to backward translation during stance.

    PubMed

    Albright, Bruce C; Woodhull-Smith, Whitney M

    2009-07-01

    Shoes with rocker bottom soles are utilized by persons with diabetic peripheral neuropathy to reduce plantar pressures during gait. This population also has a high risk for falls. This study analyzed the effects of shoes with rocker bottom soles on the postural response during perturbed stance. Participants were 20 healthy subjects (16 women, 4 men) ages 22-25 years. Canvas shoes were modified by the addition of crepe sole material to represent two forms of rocker bottom shoes and a control shoe. Subjects stood on a dynamic force plate programmed to move backward at a velocity that produced an automatic postural response without stepping. Force plate data were collected for five trials per shoe type. Sway variables for center of pressure (COP) and center of mass (COM) included: mean sway amplitude, sway variance, time to peak, anterior and posterior peak velocities, functional stability margin, and peak duration time. Compared to control, both the experimental shoes had significantly larger COP and COM values for mean sway amplitude, sway variance and peak duration. The functional stability margins were significantly smaller for the experimental shoes while their anterior and posterior peak velocities were slower and time to peaks were significantly longer. In young healthy adults, shoes with rocker bottom soles had a destabilizing effect to perturbed stance, thereby increasing the potential for imbalance. These results raise concerns that footwear with rocker bottom sole modifications to accommodate an insensate foot may increase the risk of falls.

  15. Moral Development of Solo Juvenile Sex Offenders

    ERIC Educational Resources Information Center

    Van Vugt, Eveline; Stams, Geert Jan; Dekovic, Maja; Brugman, Daan; Rutten, Esther; Hendriks, Jan

    2008-01-01

    This study compared the moral development of solo juvenile male sex offenders (n = 20) and juvenile male non-offenders (n = 76), aged 13-19 years, from lower socioeconomic and educational backgrounds. The Moral Orientation Measure (MOM) was used to assess punishment- and victim-based moral orientation in sexual and non-sexual situations. Moral…

  16. Conditions of Confinement: Juvenile Detention and Corrections Facilities. Research Summary.

    ERIC Educational Resources Information Center

    Parent, Dale G.; And Others

    The most comprehensive nationwide research ever conducted on the juvenile detention and corrections field was a study by the Office of Juvenile Justice and Delinquency Prevention (OJJDP) assessing conditions of confinement for juveniles and determining the extent to which those conditions conform to recognized national professional standards. The…

  17. Carcass addition does not enhance juvenile salmonid biomass, growth, or retention in six Northwestern California streams.

    Treesearch

    Bret Harvey; Margaret A. Wilzbach

    2010-01-01

    Fisheries managers commonly consider the addition of salmon carcasses when seeking to enhance salmonid populations. However, the range of environmental conditions under which the technique is effective remains poorly defined. We addressed this issue by measuring the effects of wintertime addition of salmon carcasses on the biomass, growth, and retention of juvenile...

  18. Juvenile xanthogranuloma of the corneoscleral limbus.

    PubMed

    Yanoff, M; Perry, H D

    1995-07-01

    Juvenile xanthogranuloma is a rare and usually benign skin disease of unknown cause that occurs in infants and young children. We studied a case of juvenile xanthogranuloma of the corneoscleral limbus in a 17-year-old black boy, who presented with a 5-month history of a lump in the right eye. The lesion extended from the superior limbus, fanning out as it proceeded posteriorly for 6 mm with a width of 9 mm and a height of 2 to 3 mm. This yellow-orange mass was vascular and firmly fixed to the underlying tissue. The lesion was diagnosed as a dermoid and observed for 7 months without documented growth before an uneventful excisional biopsy was performed. The pathologic diagnosis showed the characteristic picture of juvenile xanthogranuloma with numerous Touton giant cells. Lipid stains provided further confirmation.

  19. 76 FR 53965 - Meeting of the Federal Advisory Committee on Juvenile Justice

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-30

    ... Federal Advisory Committee on Juvenile Justice AGENCY: Office of Juvenile Justice and Delinquency... Office of Juvenile Justice and Delinquency Prevention (OJJDP) announces a meeting of the Federal Advisory... carry out its advisory functions under Section 223(f)(2)(C-E) of the Juvenile Justice and Delinquency...

  20. 78 FR 69876 - Meeting of the Federal Advisory Committee on Juvenile Justice

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-21

    ... Federal Advisory Committee on Juvenile Justice AGENCY: Office of Juvenile Justice and Delinquency... Office of Juvenile Justice and Delinquency Prevention (OJJDP) announces a meeting of the Federal Advisory... carry out its advisory functions under Section 223(f)(2)(C-E) of the Juvenile Justice and Delinquency...

  1. Home range and movements of juvenile Puerto Rican parrots

    USGS Publications Warehouse

    Lindsey, G.D.; Arendt, W.J.; Kalina, J.; Pendleton, G.W.

    1991-01-01

    We studied home range and movements of 15 radio-marked, juvenile Puerto Rican parrots (Amazona vittata) fledging from wild nests during summer and fall, 1985-87. When juvenile parrots remained in the nest valley, home ranges during 1986 (.hivin.x = 32 .+-. 10 [SE] ha, n = 4) were larger (P = 0.0079) than during 1987 (.hivin.x = 13 .+-. 6 ha, n = 5). After radio-marked parrots integrated into adult flocks, home ranges during 1986 (.hivin.x = 1,075 .+-. 135 ha, n = 3) were similar (P = 0.10) to 1987 (.hivin.x = 416 .+-. 62 ha, n = 2). Juvenile parrots restricted their movements to nest valleys an average of 58 .+-. 29 days following fledging. After joining adult flocks, juvenile parrots routinely flew between the east and west slopes of the Luquillo Mountains but did not exhibit a seaonal pattern of movement. We recommend that captive-raised, juvenile parrots used in release programs be .gtoreq. 5 months old to ensure they are mature enough to integrate into wild flocks.

  2. Juvenile Suicide in Confinement--Findings from the First National Survey

    ERIC Educational Resources Information Center

    Hayes, Lindsay M.

    2009-01-01

    Findings from the first national survey on juvenile suicide in confinement are provided, and include the extent and distribution of juvenile suicides, as well as descriptive data on demographic characteristics of each victim, incident, and juvenile facility which sustained the suicide. Among the significant findings were that suicides were evenly…

  3. Juvenile Drug Court: Enhancing Outcomes by Integrating Evidence-Based Treatments

    ERIC Educational Resources Information Center

    Henggeler, Scott W.; Halliday-Boykins, Colleen A.; Cunningham, Phillippe B.; Randall, Jeff; Shapiro, Steven B.; Chapman, Jason E.

    2006-01-01

    Evaluated the effectiveness of juvenile drug court for 161 juvenile offenders meeting diagnostic criteria for substance abuse or dependence and determined whether the integration of evidence-based practices enhanced the outcomes of juvenile drug court. Over a 1-year period, a four-condition randomized design evaluated outcomes for family court…

  4. Using the Juvenile Justice Poster. Teaching Strategy.

    ERIC Educational Resources Information Center

    Update on Law-Related Education, 2000

    2000-01-01

    Presents a lesson that can help students review and summarize what they have learned about the juvenile justice system. Explains that the students discuss how the juvenile justice system can be improved and conduct a survey on how it might be changed in the future. Provides a copy of the survey and directions. (CMK)

  5. Juvenile Offender Comprehensive Reentry Substance Abuse Treatment

    ERIC Educational Resources Information Center

    Watson, Donnie W.

    2004-01-01

    The literature provides ample evidence of the relationship of substance abuse to crime. Research over the last 20 years has established a strong correlation between substance abuse and juvenile delinquency (held, 1998). Currently, there are more than 350,000 juveniles on probation and in continuing care programs in the U.S. who have substance…

  6. Families, Juvenile Justice and Children's Mental Health.

    ERIC Educational Resources Information Center

    McManus, Marilyn C., Ed.

    1997-01-01

    The theme issue of this bulletin is a discussion of youth with emotional disturbances who are in the juvenile justice system and how to meet their needs. Articles include: (1) "Responding to the Mental Health Needs of Youth in the Juvenile Justice System" (Susan Rotenberg); (2) "Prevalence of Mental Disorders among Youth in the…

  7. Genetic and clinical evaluation of juvenile retinoschisis.

    PubMed

    Kim, Judy E; Ruttum, Mark S; Koeberl, Matthew J; Hassemer, Eryn L; Sidjanin, D J

    2009-04-01

    Juvenile retinoschisis is a rare retinal dystrophy caused by RS1 gene mutations.(1) Clinical examinations and molecular testing definitively diagnosed juvenile retinoschisis in 2 male infants, one of whom had a novel mutation not previously reported in the United States. Genetic testing may be the simplest way to confirm this diagnosis in infants.

  8. Juvenile Delinquency and Teenage Pregnancy: A Comparison of Ecological Risk Profiles among Midwestern White and Black Female Juvenile Offenders

    ERIC Educational Resources Information Center

    Khurana, Atika; Cooksey, Elizabeth C.; Gavazzi, Stephen M.

    2011-01-01

    The authors examined ecological risk factors associated with teen pregnancy with a sample of 1,190 court-involved female juvenile offenders between 11 and 18 years of age. Data were obtained from five Midwestern juvenile county courts using a recently developed youth risk assessment instrument called the global risk assessment device (GRAD). In…

  9. Bilateral, independent juvenile nasopharyngeal angiofibroma: case report.

    PubMed

    Mørkenborg, M-L; Frendø, M; Stavngaard, T; Von Buchwald, C

    2015-10-01

    Juvenile nasopharyngeal angiofibroma is a benign, vascular tumour that primarily occurs in adolescent males. Despite its benign nature, aggressive growth patterns can cause potential life-threatening complications. Juvenile nasopharyngeal angiofibroma is normally unilateral, originating from the sphenopalatine artery, but bilateral symptoms can occur if a large tumour extends to the contralateral side of the nasopharynx. This paper presents the first reported case of true bilateral extensive juvenile nasopharyngeal angiofibroma involving clinically challenging pre-surgical planning and surgical strategy. A 21-year-old male presented with increasing bilateral nasal obstruction and discharge. Examination revealed tumours bilaterally and imaging demonstrated non-contiguous tumours. Pre-operative angiography showed strictly ipsilateral vascular supplies requiring bilateral embolisation. Radical removal performed as one-step, computer-assisted functional endoscopic sinus surgery was performed. The follow-up period was uncomplicated. This case illustrates the importance of suspecting bilateral juvenile nasopharyngeal angiofibroma in patients presenting with bilateral symptoms. Our management, including successful pre-operative planning, enabled one-step total removal of both tumours and rapid patient recovery.

  10. Phototaxis of larval and juvenile northern pike

    USGS Publications Warehouse

    Zigler, S.J.; Dewey, M.R.

    1995-01-01

    Age- Phi northern pike Esox lucius prefer vegetated habitats that are difficult to sample with standard towed gears. Light traps can be effective for sampling larval fishes in dense vegetation, given positive phototaxis of fish. We evaluated the phototactic response of young northern pike by comparing the catches of larvae and juveniles obtained with plexiglass traps deployed with a chemical light stick versus traps deployed without a light source (controls) in a laboratory raceway and in a vegetated pond. In the laboratory tests, catches of protolarvae and mesolarvae in lighted traps were 11-35 times greater than catches in control traps. The catches of juvenile northern pike in field and laboratory experiments were 3-15 times greater in lighted traps than in control traps, even though the maximum body width of the larger juveniles was similar to the width of the entrance slots of the traps (5 mm). Larval and juvenile northern pike were photopositive; thus, light traps should effectively sample age-0 northern pike for at least 6 weeks after hatching.

  11. The myositis autoantibody phenotypes of the juvenile idiopathic inflammatory myopathies.

    PubMed

    Rider, Lisa G; Shah, Mona; Mamyrova, Gulnara; Huber, Adam M; Rice, Madeline Murguia; Targoff, Ira N; Miller, Frederick W

    2013-07-01

    frequencies of black race, severe onset, distal weakness, falling episodes, Raynaud phenomenon, cardiac involvement, high CK levels, chronic disease course, frequent hospitalization, and wheelchair use. Characteristic features of the anti-Mi-2 subgroup included Hispanic ethnicity, classic dermatomyositis and malar rashes, high CK levels, and very low mortality. Finally, the most common features of patients without any currently defined MSA or myositis-associated autoantibodies included linear extensor erythema, arthralgia, and a monocyclic disease course. Several demographic and clinical features were shared between juvenile and adult idiopathic inflammatory myopathy subgroups, but with several important differences. We conclude that juvenile myositis is a heterogeneous group of illnesses with distinct autoantibody phenotypes defined by varying clinical and demographic characteristics, laboratory features, and outcomes.

  12. Metamorphic sole formation and early plate interface rheology: Insights from Griggs apparatus experiments

    NASA Astrophysics Data System (ADS)

    Soret, Mathieu; Agard, Philippe; Dubacq, Benoît; Hirth, Greg; Yamato, Philippe; Ildefonse, Benoît; Prigent, Cécile

    2016-04-01

    Metamorphic soles correspond to m to ~500 m thick highly strained metamorphic rock units found beneath mylonitic banded peridotites at the base of large-scale ophiolites, as exemplified in Oman. Metamorphic soles are mainly composed of metabasalts deriving from the downgoing oceanic lithosphere and metamorphosed up to granulite-facies conditions by heat transfer from the mantle wedge. Pressure-temperature peak conditions are usually estimated at 1.0±0.2 GPa and 800±100°C. The absence of HP-LT metamorphism overprint implies that metamorphic soles have been formed and exhumed during subduction infancy. In this view, metamorphic soles were strongly deformed during their accretion to the mantle wedge (corresponding, now, to the base of the ophiolite). Therefore, metamorphic soles and banded peridotites are direct witnesses of the dynamics of early subduction zones, in terms of thermal structure, fluid migration and rheology evolution across the nascent slab interface. Based on fieldwork and EBSD analyses, we present a detailed (micro-) structural study performed on samples coming from the Sumeini window, the better-preserved cross-section of the metamorphic sole of Oman. Large differences are found in the deformation (CPO, grain size, aspect ratio) of clinopyroxene, amphibole and plagioclase, related to mineralogical changes linked with the distance to the peridotite contact (e.g., hardening due to the appearance of garnet and clinopyroxene). To model the incipient slab interface in laboratory, we carried out 5 hydrostatic annealing and simple-shear experiments on Griggs solid-medium apparatus. Deformation experiments were conducted at axial strain rates of 10-6 s-1. Fine-grained amphibolite was synthetized by adding 1 wt.% water to a (Mid-Ocean Ridge) basalt powder as a proxy for the metamorphic sole (amphibole + plagioclase + clinopyroxene ± garnet assemblage). To synthetize garnet, 2 experiments were carried out in hydrostatic conditions and with deformation at

  13. Race and the Fragility of the Legal Distinction between Juveniles and Adults

    PubMed Central

    Rattan, Aneeta; Levine, Cynthia S.; Dweck, Carol S.; Eberhardt, Jennifer L.

    2012-01-01

    Legal precedent establishes juvenile offenders as inherently less culpable than adult offenders and thus protects juveniles from the most severe of punishments. But how fragile might these protections be? In the present study, simply bringing to mind a Black (vs. White) juvenile offender led participants to view juveniles in general as significantly more similar to adults in their inherent culpability and to express more support for severe sentencing. Indeed, these differences in participants’ perceptions of this foundational legal precedent distinguishing between juveniles and adults accounted for their greater support for severe punishment. These results highlight the fragility of protections for juveniles when race is in play. Furthermore, we suggest that this fragility may have broad implications for how juveniles are seen and treated in the criminal justice system. PMID:22649496

  14. Race and the fragility of the legal distinction between juveniles and adults.

    PubMed

    Rattan, Aneeta; Levine, Cynthia S; Dweck, Carol S; Eberhardt, Jennifer L

    2012-01-01

    Legal precedent establishes juvenile offenders as inherently less culpable than adult offenders and thus protects juveniles from the most severe of punishments. But how fragile might these protections be? In the present study, simply bringing to mind a Black (vs. White) juvenile offender led participants to view juveniles in general as significantly more similar to adults in their inherent culpability and to express more support for severe sentencing. Indeed, these differences in participants' perceptions of this foundational legal precedent distinguishing between juveniles and adults accounted for their greater support for severe punishment. These results highlight the fragility of protections for juveniles when race is in play. Furthermore, we suggest that this fragility may have broad implications for how juveniles are seen and treated in the criminal justice system.

  15. Calcifying (juvenile) aponeurotic fibroma of the scalp.

    PubMed

    Thakur, Jagdeep S; Diwana, Vijay K; Sharma, Sudarshan; Thakur, Anamika

    2011-10-01

    Calcifying aponeurotic fibroma is a benign tumor with a predilection for distal parts of the extremities; it is very rare in the head and neck region. It commonly affects young patients-hence the term juvenile in the name. It is fibroblastic in origin and considered a cartilage analogue of fibromatosis, but its exact etiology remains unknown. Clinically, this tumor needs to be differentiated from fibromatosis, nodular fasciitis, chondroma, schwannoma, and rheumatoid nodule. A 24-year-old woman presented with swelling in the forehead for the previous 6 months. Wide surgical excision of the lesion was performed, and histopathologic examination revealed a calcifying aponeurotic fibroma. We reviewed the literature on this rare clinical entity and present our hypothesis on its etiology.

  16. Plantar Sole Unweighting Alters the Sensory Transmission to the Cortical Areas

    PubMed Central

    Mouchnino, Laurence; Lhomond, Olivia; Morant, Clément; Chavet, Pascale

    2017-01-01

    It is well established that somatosensory inputs to the cortex undergo an early and a later stage of processing. The later has been shown to be enhanced when the earlier transmission decreased. In this framework, mechanical factors such as the mechanical stress to which sensors are subjected when wearing a loaded vest are associated with a decrease in sensory transmission. This decrease is in turn associated with an increase in the late sensory processes originating from cortical areas. We hypothesized that unweighting the plantar sole should lead to a facilitation of the sensory transmission. To test this hypothesis, we recorded cortical somatosensory evoked potentials (SEPs) of individuals following cutaneous stimulation (by mean of an electrical stimulation of the foot sole) in different conditions of unweighting when standing still with eyes closed. To this end, the effective bodyweight (BW) was reduced from 100% BW to 40% BW. Contrary to what was expected, we found an attenuation of sensory information when the BW was unweighted to 41% which was not compensated by an increase of the late SEP component. Overall these results suggested that the attenuation of sensory transmission observed in 40 BW condition was not solely due to the absence of forces acting on the sole of the feet but rather to the current relevance of the afferent signals related to the balance constraints of the task. PMID:28539876

  17. Criminal history and future offending of juveniles convicted of the possession of child pornography.

    PubMed

    Aebi, Marcel; Plattner, Belinda; Ernest, Melanie; Kaszynski, Katie; Bessler, Cornelia

    2014-08-01

    Most child pornography is distributed online. It is estimated that 3% to 15% of child pornography consumers are juveniles. The present study analyzed a consecutive sample of 54 male juveniles convicted of the possession of child pornography. Demographic characteristics, criminal history, and subsequent offending were assessed from criminal files and official reports. Juvenile possessors of child pornography were compared to three different groups of juveniles: Juvenile possessors of other illegal pornography (n = 42), juveniles who committed a sexual contact offense against a child (n = 64), and juveniles who committed a sexual contact offense against a peer or adult (n = 104). Juvenile possessors of child pornography were found to have downloaded the illegal material more frequently and over a longer time period than juvenile possessors of other illegal pornography. Furthermore, juvenile possessors of child pornography differed from juveniles who had committed a sexual contact offense in terms of demographics and showed fewer previous and subsequent offending than juveniles who sexually offended against a peer or adult. We conclude that juvenile possessors of child pornography need a specific target intervention focusing on dysfunctional Internet use and sexually deviant arousal. © The Author(s) 2013.

  18. Maternal Touch Moderates Sex Differences in Juvenile Social Play Behavior

    PubMed Central

    Edelmann, Michelle N.; Demers, Catherine H.; Auger, Anthony P.

    2013-01-01

    Additional somatosensory contact of preterm human infants improves a variety of developmental assessment scores, but less is known about its lasting consequences. In rodents, maternal contact may influence the programming of juvenile social play behavior. Therefore, we used a paradigm where we can control the levels of somatosensory contact associated with maternal care. We find that additional somatosensory contact of offspring can have lasting consequences on juvenile social play behavior in a sex-dependent manner. Specifically, additional somatosensory stimuli reduced male social play behavior, but did not change female play behavior. We then examined if this additional infant contact altered some neurobiological substrates associated with play within the juvenile amygdala. Control males had lower levels of 5HT2a receptor mRNA levels contrasted to females; however, similar to its sex-dependent effect on juvenile social play, males that received additional somatosensory contact had higher serotonin 5HT2a receptor mRNA levels than control males. No difference was found in females. As serotonin signaling typically opposes juvenile play behavior, these data suggest that maternal touch can program lasting differences in juvenile social play and 5HT2a receptors mRNA levels within the juvenile amygdala. PMID:23460849

  19. The effect of medical cannabis laws on juvenile cannabis use.

    PubMed

    Stolzenberg, Lisa; D'Alessio, Stewart J; Dariano, Dustin

    2016-01-01

    A number of states in the United States legally allow the use of cannabis as a medical therapy to treat an illness or to alleviate symptoms. Concern persists as to whether these types of laws are increasing juvenile recreational cannabis use. It is also plausible that medical cannabis laws engender an escalation of illicit non-cannabis drug use among juveniles because cannabis is frequently considered to be a gateway drug. This study uses longitudinal data drawn from the National Survey on Drug Use and Health for the 50 U.S. states and a cross-sectional pooled-time series research design to investigate the effect of medical cannabis laws on juvenile cannabis use and on juvenile non-cannabis illicit drug use. Our study period encompasses five measurement periods calibrated in two-year intervals (2002-2003 to 2010-2011). This research design is advantageous in that it affords us the ability not only to assess the effect of the implementation of medical cannabis laws on juvenile drug use, but also to consider other state-specific factors that may explain variation in drug use that cannot be accounted for using a single time series. Findings show that medical cannabis laws amplify recreational juvenile cannabis use. Other salient predictors of juvenile cannabis use at the state-level of analysis include perceived availability of cannabis, percent of juveniles skipping school, severity of perceived punishment for cannabis possession, alcohol consumption, percent of respondents with a father residing in household, and percent of families in the state receiving public assistance. There is little empirical evidence to support the view that medical cannabis laws affect juveniles' use of illicit non-cannabis drugs. Based on our findings, it seems reasonable to speculate that medical cannabis laws amplify juveniles' use of cannabis by allaying the social stigma associated with recreational cannabis use and by placating the fear that cannabis use could potentially result in a

  20. Arc/Forearc Lengthening at Plate Triple Junctions and the Formation of Ophiolitic Soles

    NASA Astrophysics Data System (ADS)

    Casey, John; Dewey, John

    2013-04-01

    The principal enigma of large obducted ophiolite slabs is that they clearly must have been generated by some form of organized sea-floor spreading/plate-accretion, such as may be envisioned for the oceanic ridges, yet the volcanics commonly have arc affinity (Miyashiro) with boninites (high-temperature/low-pressure, high Mg and Si andesites), which are suggestive of a forearc origin. PT conditions under which boninites and metamorphic soles form and observations of modern forearc systems lead us to the conclusion that ophiolite formation is associated with overidding plate spreading centers that intersect the trench to form ridge-trench-trench of ridge-trench-tranform triple junctions. The spreading centers extend and lengthen the forearc parallel to the trench and by definition are in supra-subduction zone (SSZ) settings. Many ophiolites likewise have complexly-deformed associated mafic-ultramafic assemblages that suggest fracture zone/transform t along their frontal edges, which in turn has led to models involving the nucleation of subduction zones on fracture zones or transpressional transforms. Hitherto, arc-related sea-floor-spreading has been considered to be either pre-arc (fore-arc boninites) or post-arc (classic Karig-style back arc basins that trench-parallell split arcs). Syn-arc boninites and forearc oceanic spreading centers that involve a stable ridge/trench/trench triple or a ridge-trench-transform triple junction, the ridge being between the two upper plates, are consistent with large slab ophiolite formation in a readied obduction settting. The direction of subduction must be oblique with a different sense in the two subduction zones and the oblique subduction cannot be partitioned into trench orthogonal and parallel strike-slip components. As the ridge spreads, new oceanic lithosphere is created within the forearc, the arc and fore-arc lengthen significantly, and a syn-arc ophiolite forearc complex is generated by this mechanism. The ophiolite

  1. Micropropagation of juvenile and mature american beech

    Treesearch

    Melanie J. Barker; Paula M. Pijut; Michael E. Ostry; David R. Houston

    1997-01-01

    The purpose of this study was to micropropagate juvenile and mature American beech (Fagus grandifolia Ehrh.) resistant to beech bark disease. Shoot tips (from juvenile seedlings and root sprouts of mature trees) and buds from branches of mature trees, were cultured and multiplied on aspen culture medium supplemented with 0.89 ?M 6-benzyladenine, 0.27 ?M a-...

  2. Thermomechanical pulping of loblolly pine juvenile wood

    Treesearch

    Gary C. Myers

    2002-01-01

    Intensive forest management, with a heavy emphasis on ecosystem management and restoring or maintaining forest health, will result in the removal of smaller diameter materials from the forest. This increases the probability of higher juvenile wood content in the harvested materials. The purpose of this study was to compare the performance of loblolly pine juvenile and...

  3. Genetic and clinical evaluation of juvenile retinoschisis

    PubMed Central

    Kim, Judy E.; Ruttum, Mark S.; Koeberl, Matthew J.; Hassemer, Eryn L.; Sidjanin, D. J.

    2014-01-01

    Juvenile retinoschisis is a rare retinal dystrophy caused by RS1 gene mutations.1 Clinical examinations and molecular testing definitively diagnosed juvenile retinoschisis in 2 male infants, one of whom had a novel mutation not previously reported in the United States. Genetic testing may be the simplest way to confirm this diagnosis in infants. PMID:19393523

  4. Activation of basolateral amygdala in juvenile C57BL/6J mice during social approach behavior.

    PubMed

    Ferri, Sarah L; Kreibich, Arati S; Torre, Matthew; Piccoli, Cara T; Dow, Holly; Pallathra, Ashley A; Li, Hongzhe; Bilker, Warren B; Gur, Ruben C; Abel, Ted; Brodkin, Edward S

    2016-10-29

    There is a strong need to better understand the neurobiology of juvenile sociability (tendency to seek social interaction), a phenotype of central relevance to autism spectrum disorders (ASD). Although numerous genetic mouse models of ASD showing reduced sociability have been reported, and certain brain regions, such as the amygdala, have been implicated in sociability, there has been little emphasis on delineating brain structures and circuits activated during social interactions in the critical juvenile period of the mouse strain that serves as the most common genetic background for these models-the highly sociable C57BL/6J (B6) strain. We measured expression of the immediate early genes Fos and Egr-1 to map activation of brain regions following the Social Approach Test (SAT) in juvenile male B6 mice. We hypothesized that juvenile B6 mice would show activation of the amygdala during social interactions. The basolateral amygdala (BLA) was activated by social exposure in highly sociable, 4-week-old B6 mice. In light of these data, and the many lines of evidence indicating alteration of amygdala circuits in human ASD, future studies are warranted to assess structural and functional alterations in the BLA, particularly at BLA synapses, in various mouse models of ASD. Copyright © 2016 IBRO. Published by Elsevier Ltd. All rights reserved.

  5. Leukoproliferative response of splenocytes from English sole (Pleuronectes vetulus) exposed to chemical contaminants

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Arkoosh, M.R.; Clemons, E.; Huffman, P.

    The leukoproliferative (LP) response of splenic leukocytes from the marine benthic fish English sole (Pleuronectes vetulus) stimulated with the mitogens lipopolysaccharide (LPS), convanavalin A (Con A), and pokeweed mitogen (PWM) was examined as a biomarker of immunotoxic effects. English sole were exposed to contaminants, either by injection of an organic-solvent extract of a sediment containing polycyclic aromatic compounds (PACs) or placed for up to 5 weeks on a reference sediment containing 0.15 to 1.5% (v/v) of the PAC-contaminated sediment. English sole either injected with the contaminated extract or held on PAC-contaminated sediment had an augmented response to Con A. Themore » LP response to LPS showed no relationship to PAC exposure in laboratory-exposed fish, while PWM showed no consistent relationship to exposure to PACs. In a field study, English sole captured from an urban area in Puget Sound, Washington, USA, contaminated with PACs and other chemical contaminants had a significantly augmented LP response to Con A and PWM in comparison to the LP response in fish from a nonurban reference site. Fish from another nonurban site also had an augmented LP response to Con A, indicating that the elevation of the Con A LP response can also result from factors other than chemical contaminant exposure. In addition, English sole from this site also had an augmented LP response to LPS, whereas fish from urban sites did not exhibit an augmented LP response to LPS. Overall, the results demonstrated that although the LP response in splenic leukocytes of English sole to Con A was linked to contaminant exposure, the LP response to Con A did not exhibit high specificity as an indicator of chemical contaminant exposure. However, the concerted use of Con A, LPS, and PWM allowed for identification of apparent chemical contaminant-induced alterations of the LP response in English sole from an urban area of Puget Sound.« less

  6. Juvenile Radio-Tag Study: Lower Granite Dam, 1985 Annual Report.

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Stuehrenberg, Lowell C.

    The concept of using mass releases of juvenile radio tags represents a new and potentially powerful research tool that could be effectively applied to juvenile salmonid passage problems at dams on the Columbia and Snake Rivers. A system of detector antennas, strategically located, would automatically detect and record individually tagged juvenile salmonids as they pass through the spillway, powerhouse, bypass system, or tailrace areas below the dam. Accurate measurements of spill effectiveness, fish guiding efficiency (FGE), collection efficiency (CE), spillway survival, powerhouse survival, and bypass survival would be possible without handling large numbers of unmarked fish. A prototype juvenile radio-tagmore » system was developed and tested by the National Marine Fisheries Service (NMFS) and Bonneville Power Administration (BPA) at John Day Dam and at Lower Granite Dam. This report summarizes research to: (1) evaluate the effectiveness of the prototype juvenile radio-tag system in a field situation and (2) to test the basic assumptions inherent in using the juvenile radio tag as a research tool.« less

  7. Diagnostic Changes to DSM-5: The Potential Impact on Juvenile Justice.

    PubMed

    Haney-Caron, Emily; Brogan, Leah; NeMoyer, Amanda; Kelley, Sharon; Heilbrun, Kirk

    2016-12-01

    Legal decision-makers have discretion at every stage of processing in the juvenile justice system, and individual youth characteristics (e.g., a particular psychiatric diagnosis) influence how a youth progresses through the system. As a result, changes in diagnostic criteria in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) may affect the rates of diagnoses among justice-involved youths and subsequently influence youths' experiences within the justice system. In this article, we identify the diagnoses most likely to exert such influences and review the prevalence of diagnosis and psychiatric disorder symptomatology in justice-involved youths. We highlight the DSM-5 changes in diagnostic criteria for internalizing and externalizing disorders that commonly occur among justice-involved youths and the potential impact of these changes on the rates of diagnoses within this population. Finally, we address the limitations of using psychiatric diagnoses in juvenile justice decision making, including the potential for biasing legal decision-makers and the importance of considering context as part of diagnosis. © 2016 American Academy of Psychiatry and the Law.

  8. The role of emergent wetlands as potential rearing habitats for juvenile salmonids

    USGS Publications Warehouse

    Henning, Julie A.; Gresswell, Robert E.; Flemming, Ian A.

    2006-01-01

    A recent trend of enhancing freshwater emergent wetlands for waterfowl and other wildlife has raised concern about the effects of such measures on juvenile salmonids. We undertook this study to quantify the degree and extent of juvenile Pacific salmon Oncorhynchus spp. utilization of enhanced and unenhanced emergent wetlands within the floodplain of the lower Chehalis River, Washington, and to determine the fate of the salmon using them. Enhanced emergent wetlands contained water control structures that provided an outlet for fish emigration and a longer hydroperiod for rearing than unenhanced wetlands. Age-0 and age-1 coho salmon O. kisutch were the most common salmonid at all sites, enhanced wetlands having significantly higher age-1 abundance than unenhanced wetlands that were a similar distance from the main-stem river. Yearling coho salmon benefited from rearing in two enhanced wetland habitats, where their specific growth rate and minimum estimates of survival (1.43%/d by weight and 30%; 1.37%/d and 57%) were comparable to those in other side-channel rearing studies. Dissolved oxygen concentrations decreased in emergent wetlands throughout the season and approached the limits lethal to juvenile salmon by May or June each year. Emigration patterns suggested that age-0 and age-1 coho salmon emigrated as habitat conditions declined. This observation was further supported by the results of an experimental release of coho salmon. Survival of fish utilizing emergent wetlands was dependent on movement to the river before water quality decreased or stranding occurred from wetland desiccation. Thus, our results suggest that enhancing freshwater wetlands via water control structures can benefit juvenile salmonids, at least in the short term, by providing conditions for greater growth, survival, and emigration.

  9. Juvenile Probation Officer Self-Assessed Mental Health Competency as a Predictor of Case Management Practices.

    PubMed

    Holloway, Evan D; Cruise, Keith R; Downs, Sarah M; Monahan, Patrick O; Aalsma, Matthew C

    2017-07-01

    Justice-involved youth endorse high rates of mental health problems. Juvenile probation is the most common disposition in the justice system and juvenile probation officers (JPOs) are crucial for connecting justice-involved youth with appropriate care. We examined the role of mental health competency on the use of self-report case management strategy types (deterrence, restorative justice, and treatment) by JPOs and whether jurisdiction-level differences were relevant. Results suggest that mental health competency predicted use of restorative justice and treatment strategies and all three strategy types varied at the county level. The role of mental health competency in use of treatment strategies is relevant to connecting justice-involved youth to mental health care. Furthermore, a substantial amount of the variance predicting the use of all three strategies was accounted for at the county level.

  10. Lake-specific variation in growth, migration timing and survival of juvenile sockeye salmon Oncorhynchus nerka: separating environmental from genetic influences.

    PubMed

    Reed, T E; Martinek, G; Quinn, T P

    2010-08-01

    Time series on juvenile life-history traits obtained from sockeye salmon Oncorhynchus nerka were analysed to assess lake-specific environmental influences on juvenile migration timing, size and survival of fish from a common gene pool. Every year for the past two decades, O. nerka have been spawned at a hatchery facility, and the progeny released into two lakes that differ in average summer temperatures, limnological attributes and growth opportunities. Juveniles reared in the warmer, more productive Crosswind Lake were larger and heavier as smolts compared to those from the cooler, less productive Summit Lake and had higher in-lake and subsequent marine survival. Crosswind Lake smolts migrated from the lake to sea slightly earlier in the season but the migration timing distributions overlapped considerably across years. Fry stocking density had a negative effect on smolt length for both lakes, and a negative effect on in-lake survival in Summit Lake. Taken together, the results revealed a strong effect of lake-rearing environment on the expression of life-history variation in O. nerka. The stocking of these lakes each year with juveniles from a single mixed-source population provided a large-scale reverse common-garden experiment, where the same gene pool was exposed to different environments, rather than the different gene pools in the same environment approach typical of evolutionary ecology studies. Other researchers are encouraged to seek and exploit similar serendipitous situations, which might allow environmental and genetic influences on ecologically important traits to be distinguished in natural or semi-natural settings.

  11. Corporal and capital punishment of juveniles.

    PubMed

    Frazier, H C

    1990-01-01

    There is a previously unobserved connection between corporal punishment of public school children and capital punishment of juveniles. Both are barometers of acceptable levels of violent punishment and their elimination is a hallmark of a maturing and decent society. Within a majority of the eighteen states where school authorities most frequently strike children are housed 25 of the nation's 28 juvenile death row inmates. On average, the homicide rates of these jurisdictions are two and a half times greater than those that have abolished both state-sanctioned corporal and capital punishment or limit death sentences to those age eighteen and older at the time of their crime(s). Most of the eighteen state abolitions of corporal punishment occurred in the 1980's. The US Supreme Court has ruled both corporal and capital punishment of juveniles constitutional. Additional state legislative abolition of both is anticipated in the 1990s.

  12. Modern management of juvenile recurrent parotitis.

    PubMed

    Capaccio, P; Sigismund, P E; Luca, N; Marchisio, P; Pignataro, L

    2012-12-01

    To evaluate modern diagnostic and therapeutic management of juvenile recurrent parotitis, and to show the benefits of operative sialoendoscopy on the basis of our experience in 14 patients and the results of others. Ultrasonography is sensitive in detecting the pathological features of juvenile recurrent parotitis. Interventional sialoendoscopy is a safe and effective method of treating the disease. In our case series, after a mean follow-up time of 30 months only 5 patients experienced recurrence of symptoms, with a mean symptom-free period of 20 months. The use of modern, minimally invasive diagnostic tools such as colour Doppler ultrasonography, magnetic resonance sialography and sialoendoscopy represents a new frontier in the management of juvenile recurrent parotitis. Operative sialoendoscopy also has the important therapeutic benefit of reducing the number of recurrences of acute episodes of parotitis, thus giving patients a better quality of life until puberty.

  13. Thinking like a duck: fall lake use and movement patterns of juvenile ring-necked ducks before migration.

    PubMed

    Roy, Charlotte L; Fieberg, John; Scharenbroich, Christopher; Herwig, Christine M

    2014-01-01

    The post-fledging period is one of the least studied portions of the annual cycle in waterfowl. Yet, recruitment into the breeding population requires that young birds have sufficient resources to survive this period. We used radio-telemetry and generalized estimating equations to examine support for four hypotheses regarding the drivers of landscape scale habitat use and movements made by juvenile ring-necked ducks between the pre-fledging period and departure for migration. Our response variables included the probability of movement, distances moved, and use of different lake types: brood-rearing lakes, staging lakes, and lakes with low potential for disturbance. Birds increased their use of staging areas and lakes with low potential for disturbance (i.e., without houses or boat accesses, >100 m from roads, or big lakes with areas where birds could sit undisturbed) throughout the fall, but these changes began before the start of the hunting season and their trajectory was not changed by the onset of hunting. Males and females moved similar distances and had similar probabilities of movements each week. However, females were more likely than males to use brood-rearing lakes later in the fall. Our findings suggest juvenile ring-necked ducks require different lake types throughout the fall, and managing solely for breeding habitat will be insufficient for meeting needs during the post-fledging period. Maintaining areas with low potential for disturbance and areas suitable for staging will ensure that ring-necked ducks have access to habitat throughout the fall.

  14. Bidirectional manipulation of mTOR signaling disrupts socially mediated vocal learning in juvenile songbirds.

    PubMed

    Ahmadiantehrani, Somayeh; London, Sarah E

    2017-08-29

    Early life experiences can have long-lasting behavioral consequences because they are encoded when the brain is most malleable. The mechanistic target of rapamycin (mTOR) signaling cascade modulates experience-dependent synaptic plasticity, among other processes. mTOR has been almost exclusively examined in adult rodent learning models, but may be especially important in organizing neural circuits required for developmental acquisition of meaningful complex behaviors. It is among the most commonly implicated factors in neurodevelopmental autism spectrum disorders (ASD), characterized, in part, by distinct social and communication phenotypes. Here, we investigated mTOR in juvenile zebra finch songbirds. Much as children learn language, young male zebra finches need to interact socially with an adult tutor to learn a meaningful song. The memory of the tutor's song structure guides the juvenile's own song, which it uses to communicate for the rest of its life. We hypothesized that mTOR is required for juveniles to learn song. To this end, we first discovered that hearing song activates mTOR signaling in a brain area required for tutor song memorization in males old enough to copy song but not in younger males or females, who cannot sing. We then showed that both inhibition and constitutive activation of mTOR during tutor experiences significantly diminished tutor song copying. Finally, we found that constitutive mTOR activation lowered a behavioral measure of the juvenile's social engagement during tutor experiences, mirroring the relationship in humans. These studies therefore advance understanding about the effects of experience in the context of neurodevelopmental disorders and typical neural development.

  15. 28 CFR 115.114 - Juveniles and youthful detainees.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 28 Judicial Administration 2 2012-07-01 2012-07-01 false Juveniles and youthful detainees. 115.114 Section 115.114 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) PRISON RAPE ELIMINATION ACT NATIONAL STANDARDS Standards for Lockups Prevention Planning § 115.114 Juveniles and youthful detainees...

  16. 28 CFR 115.114 - Juveniles and youthful detainees.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 28 Judicial Administration 2 2014-07-01 2014-07-01 false Juveniles and youthful detainees. 115.114 Section 115.114 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) PRISON RAPE ELIMINATION ACT NATIONAL STANDARDS Standards for Lockups Prevention Planning § 115.114 Juveniles and youthful detainees...

  17. 28 CFR 115.114 - Juveniles and youthful detainees.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 28 Judicial Administration 2 2013-07-01 2013-07-01 false Juveniles and youthful detainees. 115.114 Section 115.114 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) PRISON RAPE ELIMINATION ACT NATIONAL STANDARDS Standards for Lockups Prevention Planning § 115.114 Juveniles and youthful detainees...

  18. Trauma and Juvenile Delinquency: Theory, Research, and Interventions.

    ERIC Educational Resources Information Center

    Greenwald, Ricky, Ed.

    This book addresses the connection between childhood trauma and juvenile delinquency. It includes theoretical models of this relationship and examinations of its most important aspects, explorations of trauma-related assessment issues, and practical therapeutic interventions for use with juvenile delinquents. Chapters include: (1) "The Role…

  19. [Juvenile xanthogranuloma: 3 cases report and literature review].

    PubMed

    Liu, Zi-qin; Liu, Rong; Shi, Xiao-dong; Li, Jing-xian; Zou, Ji-zhen

    2011-09-01

    To report the clinical characteristics and treatment of 3 patients with juvenile xanthogranuloma (JXG). A retrospective review of the medical records of 3 patients with JXG. JXG was characterized by solitary or multiple yellowish cutaneous nodules, or eye involvement . It could also affect pituitary. JXG was easily misdiagnosed as Langerhans cell histiocytosis (LCH). Treatment for JXG was surgical excision of a solitary skin lesion and some cases might be, spontaneous regression. In cases with multisystem involvement, chemotherapy regimens used to treat LCH may be effective. JXG is one of the more common non-Langerhans histiocytic proliferations and is frequently seen in infants and children. LCH-like chemotherapy is effective for patients with symptomatic multisystem JXG.

  20. Uveitis in juvenile idiopathic arthritis.

    PubMed

    Heiligenhaus, Arnd; Minden, Kirsten; Föll, Dirk; Pleyer, Uwe

    2015-02-06

    Juvenile idiopathic arthritis (JIA) is the most common systemic disease causing uveitis in childhood, with a prevalence of 10 per 100 000 persons. JIA often takes a severe inflammatory course, and its complications often endanger vision. This review is based on pertinent articles retrieved by a selective literature search up to 18 August 2014 and on the current interdisciplinary S2k guideline on the diagnostic evaluation and anti-inflammatory treatment of juvenile idiopathic uveitis. Uveitis arises in roughly 1 in 10 patients with JIA. Regular eye check-ups should be performed starting as soon as JIA is diagnosed. 75-80% of patients are girls; antinuclear antibodies are found in 70-90%. The risk to vision is higher if JIA begins in the preschool years. As for treatment, only a single, small-scale randomized controlled trial (RCT) and a small number of prospective trials have been published to date. Topical corticosteroids should be given as the initial treatment. Systemic immunosuppression is needed if irritation persists despite topical corticosteroids, if new complications arise, or if the topical steroids have to be given in excessively high doses or have unacceptable side effects. If the therapeutic effect remains inadequate, conventional and biological immune modulators can be given as add-on (escalation) therapy. Treatment lowers the risk of uveitis and its complications and thereby improves the prognosis for good visual function. Severely affected patients should be treated in competence centers to optimize their long-term outcome. Multidisciplinary, individualized treatment is needed because of the chronic course of active inflammation and the ensuing high risk of complications that can endanger vision. Future improvements in therapy will be aided by prospective, population-based registries and by basic research on biomarkers for the prediction of disease onset, prognosis, tissue damage, and therapeutic response.

  1. 28 CFR 0.94 - Office of Juvenile Justice and Delinquency Prevention.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Delinquency Prevention. 0.94 Section 0.94 Judicial Administration DEPARTMENT OF JUSTICE ORGANIZATION OF THE... Delinquency Prevention. The Office of Juvenile Justice and Delinquency Prevention is headed by an...., relating to juvenile delinquency, the improvement of juvenile justice systems and missing children. ...

  2. Sex differences in play behavior in juvenile tufted capuchin monkeys (Cebus apella).

    PubMed

    Paukner, Annika; Suomi, Stephen J

    2008-10-01

    According to the motor training hypothesis, play behavior in juvenile primates improves motor skills that are required in later adult life. Sex differences in juvenile play behavior can therefore be expected when adult animals assume distinct sexually dimorphic roles. Tufted capuchin monkeys show sexually dimorphic levels of physical antagonism in both inter- and intra-group encounters. Accordingly, it can be predicted that juvenile capuchins also show sex differences in social play behavior. To test this hypothesis, the play behavior of nine juvenile and two infant capuchins was examined. As predicted, juvenile males showed significantly higher levels of social play (wrestle, chase) than juvenile females, but no differences were found in nonsocial play (arboreal, object). Levels of infant play behavior were comparable to that of juveniles. These results lend support to the motor training hypothesis and highlight the need for more detailed investigations of individual differences in play behavior.

  3. Parental Low Self-Control, Family Environments, and Juvenile Delinquency.

    PubMed

    Meldrum, Ryan C; Connolly, George M; Flexon, Jamie; Guerette, Rob T

    2016-10-01

    Research consistently finds that low self-control is significantly correlated with delinquency. Only recently, however, have researchers started to examine associations between parental low self-control, family environments, and child antisocial behavior. Adding to this emerging area of research, the current study examines associations between parental low self-control, aspects of the family environment, and officially recoded juvenile delinquency among a sample (N = 101) of juveniles processed through a juvenile justice assessment facility located in the Southeastern United States. Furthermore, it considers whether aspects of family environments, particularly family cohesion, family conflict, and parental efficacy, mediate the influence of parental low self-control on delinquency. The results of a series of analyses indicate that parental low self-control is correlated with various aspects of family environments and juvenile delinquency, and that the association between parental low self-control and juvenile delinquency is mediated by family environments. Supplementary analyses also suggest that the association between parental low self-control and the family environment may be reciprocal. © The Author(s) 2015.

  4. Temperament of juvenile delinquents with history of substance abuse.

    PubMed

    Chang, Hsueh-Ling; Chen, Sue-Huei; Huang, Chien

    2007-01-01

    The etiological factors and interrelations of juvenile delinquents, with psychiatric morbidity and substance abuse have been continuously debated. Cloninger's Tridimensional Theory of Temperament has been reported to predict patterns of substance abuse and comorbidity. In the current study, we aimed to examine the usability of the theory in predicting juvenile delinquency and substance abuse. Sixty consecutive and newly incarcerated male delinquents with history of substance abuse were recruited from a juvenile correctional facility in northwestern Taiwan from January 2002 through December 2003. All subjects were assessed of their temperament, behavioral problems, and psychiatric disorders on an individual base. The juvenile delinquent subjects with childhood history of attention deficit and hyperactivity disorder (ADHD) were significantly younger, consumed less betel nuts, and had more siblings with history of drug abuse. Consistent with the results of Cloninger's studies, novelty seeking positively correlated to the amount of substance abuse, while harm avoidance inversely correlated in juvenile delinquents. Endemic trend of choice of substance abuse needs to be taken into consideration in future research projects.

  5. The future of criminal violence: juveniles tried as adults.

    PubMed

    Kirkish, P; Sreenivasan, S; Welsh, R; Van Gorp, W; Eth, S; Shoptaw, S; Ling, W

    2000-01-01

    Juveniles tried as adults (JTA) represent a select and small subsample of juvenile offenders. This study seeks to provide a profile of habitually violent JTAs transferred to the adult penal system and to compare them with their adult counterparts. Twenty-nine incarcerated violent male juveniles tried as adults were compared with a sample of 27 incarcerated violent male offenders across demographic, neuropsychological, criminal history, psychopathy, and substance abuse variables. The JTAs were characterized by a high rate of gang membership (96%), substance abuse (alcohol, marijuana, and phenylcyclidene), and use of guns. In the juvenile sample, 65 percent used guns in violence not leading to arrest, and 93 percent used guns in a violent crime leading to arrest. Juvenile offenders were similar to their adult counterparts in patterns of criminality, although adult offenders had higher psychopathy scores. Both groups revealed generally intact neuropsychological functioning with the exception of a higher rate of perseverative responses in the adult sample. The results are discussed in terms of the implication of the degree of violence in a young offender population.

  6. Prevention and Firesetting: Juvenile Justice and Intervention Strategies.

    ERIC Educational Resources Information Center

    Slavkin, Michael L.

    2003-01-01

    Examines the literature on preventing firesetting behavior in preadolescents and adolescents, suggesting the need for policies and programs designed to help juveniles by providing community support and stability. Alternatives to juvenile justice interventions include making changes in the home environment, acquiring a greater sense of self, and…

  7. IDEA-Related Professional Development in Juvenile Corrections Schools

    ERIC Educational Resources Information Center

    Gagnon, Joseph Calvin; Steinberg, Mary Anne; Crockett, Jean; Murphy, Kristin M.; Gaddis, Justin

    2013-01-01

    Incarcerated youth are among the least academically and behaviorally competent students in the United States. In spite of juvenile justice reform efforts, including state and federal guarantees of appropriate education, educational services in juvenile corrections (JC) schools, especially for youth with disabilities, are lacking (Houchins,…

  8. Brain sex differences and the organisation of juvenile social play behaviour.

    PubMed

    Auger, A P; Olesen, K M

    2009-06-01

    Juvenile social play behaviour is one of the earliest forms of non-mother directed social behaviour in rodents. Juvenile social play behaviour is sexually dimorphic, with males exhibiting higher levels compared to females, making it a useful model to study both social development and sexual differentiation of the brain. As with most sexually dimorphic behaviour, juvenile play behaviour is organised by neonatal steroid hormone exposure. The developmental organisation of juvenile play behaviour also appears to be influenced by the early maternal environment. This review will focus briefly on why and how rats play, some brain regions controlling play behaviour, and how neurotransmitters and the social environment converge within the developing brain to influence sexual differentiation of juvenile play behaviour.

  9. Evidence of separate subgroups of juvenile southern bluefin tuna.

    PubMed

    Chambers, Mark S; Sidhu, Leesa A; O'Neill, Ben; Sibanda, Nokuthaba

    2017-11-01

    Archival tagging studies of southern bluefin tuna (SBT , Thunnus maccoyii ) have revealed that juveniles residing in the Great Australian Bight (GAB) over the austral summer undertake seasonal cyclic migrations to the southeast Indian Ocean and the Tasman Sea during winter. However, there remains disagreement about the extent of mixing between juvenile SBT regularly caught by longline fleets south of Africa and those observed in the GAB. Some researchers have argued that archival tag recoveries indicate most juveniles reside in the GAB over the austral summer. Others have suggested that recoveries of conventional and archival tags are better explained by a juvenile population consisting of separate groups on the eastern and western sides of the Indian Ocean with limited intermixing. We present analyses of catch and tag recovery data and re-examine archival tagging studies. The evidence provided strongly favors the hypothesis of separate juvenile subgroups, or contingents, with limited intermixing. We draw some tentative conclusions about the nature of the putative contingents and discuss some implications of these findings for the interpretation of existing datasets and future research priorities. We also provide the first evidence that the migration choices of juveniles that summer in the GAB are influenced by fidelity to winter feeding grounds and suggest this helps explain the collapse of the surface fishery off New South Wales in the 1980s.

  10. American juvenile justice system: history in the making.

    PubMed

    Meng, Aaron; Segal, Roland; Boden, Eric

    2013-01-01

    The original theory behind separating juvenile offenders from adult offenders was to provide care and direction for youngsters instead of isolation and punishment. This idea took hold in the 19th century and became mainstream by the early 20th century. In the 1950s and 1960s, public concern grew because of a perceived lack of effectiveness and lack of rights. The Supreme Court made a series of rulings solidifying juvenile rights including the right to receive notice of charges, the right to have an attorney and the right to have charges proven beyond a reasonable doubt. In the 1980s, the public view was that the juvenile court system was too lenient and that juvenile crimes were on the rise. In the 1990s, many states passed punitive laws, including mandatory sentencing and blanket transfers to adult courts for certain crimes. As a result, the pendulum is now swinging back toward the middle from rehabilitation toward punishment.

  11. Evidence-Based Interventions for Juvenile Offenders and Juvenile Justice Policies that Support Them. Social Policy Report. Volume 25, Number 1

    ERIC Educational Resources Information Center

    Henggeler, Scott W.; Schoenwald, Sonja K.

    2011-01-01

    In a context where more than 1,000,000 American adolescents are processed by juvenile courts annually and approximately 160,000 are sent to residential placements, this paper examines "what works" and "what doesn't work" in reducing the criminal behavior of juvenile offenders and presents examples of government initiatives that have successfully…

  12. Low prevalence of juvenile-onset Behcet's disease with uveitis in East/South Asian people.

    PubMed

    Kitaichi, N; Miyazaki, A; Stanford, M R; Iwata, D; Chams, H; Ohno, S

    2009-11-01

    There is little information on the demographic and clinical characteristics of Behçet's disease in children in different parts of the world. We sought to provide this information through a questionnaire survey of specialist eye centres. Descriptive questionnaires were collected from 25 eye centres in 14 countries. The questionnaire surveyed details of juvenile-onset Behçet's disease with uveitis. Ethnic groups, clinical features, treatments and prognosis of paediatric-age Behçet's disease were examined on a worldwide scale. The clinical data of 135 juvenile-onset and 1227 adult-onset patients with uveitis were collected. The average age of disease diagnosis in the children was 11.7 years old. Of the ethnic groups identified 54% were from Middle East, 43% from Europe, but only 2% from East/South Asian countries. By contrast, 19.2% of adult patients were from East or South Asia. The frequency of genital ulcers in juvenile patients was 38.7%, which was significantly lower than in adult cases (53.5%; p<0.01). Behçet's disease with uveitis was less common in children than in adults in East/South Asia. Although the clinical features of the systemic disease were similar in children and adults, there was a lower frequency of genital ulceration in children.

  13. Race as a Factor in Juvenile Arrests. Juvenile Justice Bulletin.

    ERIC Educational Resources Information Center

    Pope, Carl E.; Snyder, Howard E.

    This bulletin examines the effect of race on police decisions to take juvenile offenders into custody. Analysis of 1997 and 1998 data on 17 states from the Federal Bureau of Investigation's National Incident-Based Reporting System indicates that there is no evidence to support the hypothesis that police are more likely to arrest nonwhite juvenile…

  14. Curfew: An Answer to Juvenile Delinquency and Victimization? Juvenile Justice Bulletin.

    ERIC Educational Resources Information Center

    LeBoeuf, Donni

    Many jurisdictions have implemented curfews in reaction to increased juvenile delinquency and other social trends. This bulletin explores developments in curfew ordinances, legal issues related to curfews, how community based jurisdictions have responded to these issues, and the elements of sound curfew programs as illustrated in seven…

  15. Tag loss and short-term mortality associated with passive integrated transponder tagging of juvenile Lost River suckers

    USGS Publications Warehouse

    Burdick, Summer M.

    2011-01-01

    Passive integrated transponder (PIT) tags are commonly used to mark small catostomids, but tag loss and the effect of tagging on mortality have not been assessed for juveniles of the endangered Lost River sucker Deltistes luxatus. I evaluated tag loss and short-term (34-d) mortality associated with the PIT tagging of juvenile Lost River suckers in the laboratory by using a completely randomized design and three treatment groups (PIT tagged, positive control, and control). An empty needle was inserted into each positive control fish, whereas control fish were handled but not tagged. Only one fish expelled its PIT tag. Mortality rate averaged 9.8 ± 3.4% (mean ± SD) for tagged fish; mortality was 0% for control and positive control fish. All tagging mortalities occurred in fish with standard lengths of 71 mm or less, and most of the mortalities occurred within 48 h of tagging. My results indicate that 12.45- × 2.02-mm PIT tags provide a viable method of marking juvenile Lost River suckers that are 72 mm or larger.

  16. The Community Assessment Center Concept. Juvenile Justice Bulletin.

    ERIC Educational Resources Information Center

    Oldenettel, Debra; Wordes, Madeline

    This bulletin is intended to inform juvenile justice practitioners and other youth service providers about the work of the Office of Juvenile Justice and Delinquency Prevention (OJJDP) in developing and demonstrating a Community Assessment Center (CAC) model, and to increase awareness about some of the challenges associated with its…

  17. Psychotic Symptomatology in a Juvenile Court Clinic Population

    ERIC Educational Resources Information Center

    Lewis, Dorothy Otnow; And Others

    1973-01-01

    This report indicating an unexpectedly high incidence of psychotic symptomatology in a population of cases referred to the Juvenile Court Psychiatric Clinic of the Second District of Connecticut, manifests the necessity for juvenile court systems to be made aware of the possibility of psychosis in our delinquent populations. (CS)

  18. Massive Gastric Juvenile Polyposis: A Clinicopathologic Study Using SMAD4 Immunohistochemistry.

    PubMed

    Lawless, Margaret E; Toweill, Daniel L; Jewell, Kim D; Jain, Dhanpat; Lamps, Laura; Krasinskas, Alyssa M; Swanson, Paul E; Upton, Melissa P; Yeh, Matthew M

    2017-04-01

    Juvenile polyps involving the stomach are uncommon. Massive gastric juvenile polyposis is even rarer. We describe the clinicopathologic features of nine cases of massive gastric juvenile polyposis. All patients had anemia; four had hypoalbuminemia. The polyps were composed predominantly of dilated crypts lined by columnar epithelium and abundant edematous stroma with mixed inflammatory infiltrates. One patient had a poorly differentiated adenocarcinoma, arising in juvenile polyp-associated intraepithelial neoplasia. A second patient had a well-differentiated intramucosal adenocarcinoma arising in a juvenile polyp with high-grade dysplasia. Three of our cases had polyposis restricted to the stomach. Six (66.6%) had loss of SMAD4 immunoreactivity, making them subject to severe bleeding and hypoproteinemia, as well as developing severe dysplasia or adenocarcinoma. SMAD4 immunohistochemstry is a helpful ancillary diagnostic test in cases of suspected juvenile polyposis syndrome involving the stomach. © American Society for Clinical Pathology, 2017. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com

  19. Predictors of involvement in the juvenile justice system among psychiatric hospitalized adolescents.

    PubMed

    Cropsey, Karen L; Weaver, Michael F; Dupre, Madeleine A

    2008-07-01

    Several risk factors for juvenile justice involvement have been identified in previous research among delinquents and include mental illness, substance use, trauma and abuse, family dysfunction, poor parenting, school problems, and aggressive behavior. However, most of these predictors resulted from studies among adolescents incarcerated in the juvenile justice system. We were interested in finding out the prevalence rates of juvenile justice involvement among psychiatric inpatient adolescents and determining predictors of juvenile justice involvement in this high-risk group. Six hundred and thirty-six medical records from adolescents ages 12-17 years who were consecutively admitted to one of two psychiatric inpatient units between July 1, 2003 and June 30, 2004 were examined. Almost half (43.6%) of hospitalized adolescents had a history of juvenile justice involvement. Logistic regression analysis was conducted to determine predictors of juvenile justice involvement. Significant predictors of juvenile justice involvement included being male, parental legal history, family substance abuse history, disruptive disorder, cocaine use, being sexually active, and having a history of aggressive behavior. Adolescents in mental health or substance abuse treatment settings should be screened for juvenile justice involvement and appropriate referrals made to prevent worsening problems for at-risk youth.

  20. Long-term effectiveness and safety of stereotactic gamma knife surgery as a primary sole treatment in the management of glomus jagulare tumor.

    PubMed

    Hafez, Raef F A; Morgan, Magad S; Fahmy, Osama M; Hassan, Hamdy T

    2018-05-01

    This study aims to report and confirm long-term effectiveness and safety of stereotactic Gamma Knife Surgery as a primary sole treatment in the management of 40 glomus jagulare tumors patients. Retrospective analysis of clinical and radiological outcomes of 40 GJTs consecutive patients treated with GKS as primary sole treatment at International Medical Center (IMC), Cairo-Egypt from the beginning of 2005 till the end of 2014,with mean follow-up period of 84 months (range 36-156 months), mean tumor volume was 6.5 cc, and mean peripheral radiation dose of 15 Gy, to mean isodose curve of 38%. The most common neurological deficit at initial evaluation was bulbar symptoms in 24 patients, followed by pulsatile tinnitus in 22, deterioration of hearing in 20 patients. The overall clinical control achieved in 92.5% of patients, while actuarial tumor size control rate post- GKS was 97.5% at 3 years, 97% at 5 years and 92% at 10 years of follow-up period. Gamma knife surgery could be used effectively and safely as a primary sole treatment tool in the management of glomus jugulare tumors. Copyright © 2018 Elsevier B.V. All rights reserved.

  1. A population-based study of juvenile perpetrators of homicide in England and Wales.

    PubMed

    Rodway, Cathryn; Norrington-Moore, Victoria; While, David; Hunt, Isabelle M; Flynn, Sandra; Swinson, Nicola; Roscoe, Alison; Appleby, Louis; Shaw, Jenny

    2011-02-01

    This study aimed to describe the social, behavioural and offence characteristics of all convicted perpetrators of homicide aged 17 and under; to examine their previous contact with mental health services, and to discuss strategies for homicide prevention. An eight-year (1996-2004) sample of 363 juvenile homicide perpetrators in England and Wales was examined. The majority of perpetrators were male, used a sharp instrument, and most victims were acquaintances or strangers. Over half had previously offended. A history of alcohol and/or drug misuse was common, as was the prevalence of family dysfunction, abuse, educational difficulties or discipline problems. Previous contact with mental health services was rare. Earlier intervention targeting social and psychological adversity and substance misuse could help to reduce the level of risk for future violence, and may reduce homicide rates among juveniles. Strengthening engagement with young offenders and increasing resources to prevent recidivism may also be beneficial. Copyright © 2010 The Association for Professionals in Services for Adolescents. All rights reserved.

  2. Effects of Prior Experience on Shelter-Seeking Behavior of Juvenile American Lobsters.

    PubMed

    Bayer, Skylar R; Bianchi, Katherine M; Atema, Jelle; Jacobs, Molly W

    2017-04-01

    Shelter-seeking behaviors are vital for survival for a range of juvenile benthic organisms. These behaviors may be innate or they may be affected by prior experience. After hatching, American lobsters Homarus americanus likely first come into contact with shelter during the late postlarval (decapodid) stage, known as stage IV. After the subsequent molt to the first juvenile stage (stage V), they are entirely benthic and are thought to be highly cryptic. We hypothesized that postlarval (stage IV) experience with shelter would carry over into the first juvenile stage (stage V) and reduce the time needed for juveniles to locate and enter shelters (sheltering). We found some evidence of a carryover effect, but not the one we predicted: stage V juveniles with postlarval shelter experience took significantly longer to initiate sheltering. We also hypothesized that stage V juveniles would demonstrate learning by relocating shelters more quickly with immediate prior experience. Our findings were mixed. In a maze, juveniles with immediate prior experience were faster to regain visual contact with shelter, suggesting that they had learned the location of the shelter. In contrast, there was no significant effect of immediate prior experience on time to initiate sheltering in an open arena, or in the maze after juveniles had regained visual contact. We conclude that very young (stage V) juvenile lobsters modify their shelter-seeking behavior based on prior experiences across several timescales. Ecologically relevant variation in habitat exposure among postlarval and early juvenile lobsters may influence successful recruitment in this culturally and commercially important fishery species.

  3. The Education of Juveniles in Detention: Policy Considerations and Infrastructure Development

    ERIC Educational Resources Information Center

    Geib, Catherine Foley; Chapman, John F.; D'Amaddio, Amy H.; Grigorenko, Elena L.

    2011-01-01

    This article presents a discussion of the state of affairs pertaining to educating juvenile justice-involved youth. It summarizes general observations regarding the schooling of juveniles in pre-trial and post-trial incarceration settings, as well as, juveniles on probation or in community settings. The article selectively presents relevant…

  4. Low-level copper exposures increase visibility and vulnerability of juvenile coho salmon to cutthroat trout predators

    USGS Publications Warehouse

    McIntyre, Jenifer K.; Baldwin, David H.; Beauchamp, David A.; Scholz, Nathaniel L.

    2012-01-01

    Copper contamination in surface waters is common in watersheds with mining activities or agricultural, industrial, commercial, and residential human land uses. This widespread pollutant is neurotoxic to the chemosensory systems of fish and other aquatic species. Among Pacific salmonids (), copper-induced olfactory impairment has previously been shown to disrupt behaviors reliant on a functioning sense of smell. For juvenile coho salmon (O. kisutch), this includes predator avoidance behaviors triggered by a chemical alarm cue (conspecific skin extract). However, the survival consequences of this sublethal neurobehavioral toxicity have not been explored. In the present study juvenile coho were exposed to low levels of dissolved copper (5–20 μg/L for 3 h) and then presented with cues signaling the proximity of a predator. Unexposed coho showed a sharp reduction in swimming activity in response to both conspecific skin extract and the upstream presence of a cutthroat trout predator (O. clarki clarki) previously fed juvenile coho. This alarm response was absent in prey fish that were exposed to copper. Moreover, cutthroat trout were more effective predators on copper-exposed coho during predation trials, as measured by attack latency, survival time, and capture success rate. The shift in predator–prey dynamics was similar when predators and prey were co-exposed to copper. Overall, we show that copper-exposed coho are unresponsive to their chemosensory environment, unprepared to evade nearby predators, and significantly less likely to survive an attack sequence. Our findings contribute to a growing understanding of how common environmental contaminants alter the chemical ecology of aquatic communities.

  5. Assessment of diclofenac LC50 reference values in juvenile and embryonic stages of the zebrafish (Danio rerio).

    PubMed

    Praskova, E; Voslarova, E; Siroka, Z; Plhalova, L; Macova, S; Marsalek, P; Pistekova, V; Svobodova, Z

    2011-01-01

    The aim of the study was to compare the acute toxicity of diclofenac to juvenile and embryonic stages of the zebrafish (Danio rerio). Acute toxicity tests were performed on the aquarium fish Danio rerio, which is one of the model organisms most commonly used in toxicity testing. The tests were performed using a semi-static method according to OECD guideline No. 203 (Fish, acute toxicity test). Embryo toxicity tests were performed in zebrafish embryos (Danio rerio) in compliance with OECD No. 212 methodology (Fish, short-term toxicity test on embryo and sac-fry stages). The results were subjected to a probit analysis using the EKO-TOX 5.2 programme to determine 96hLC50 and 144hLC50 (median lethal concentration, 50% mortality after a 96 h or 144 h interval, respectively) values of diclofenac. The statistical significance of the difference between LC50 values in juvenile and embryonic stages of Danio rerio was tested using the Mann-Whitney non-parametric test implemented in the Unistat 5.1 programme. The LC50 mean value of diclofenac was 166.6 +/- 9.8 mg/L in juvenile Danio rerio, and 6.11 +/- 2.48 mg/L in embryonic stages of Danio rerio. The study demonstrated a statistically higher sensitivity to diclofenac (P < 0.05) in embryonic stages compared to the juvenile fish.

  6. Development of acute hydrocephalus does not change brain tissue mechanical properties in adult rats, but in juvenile rats

    PubMed Central

    Pong, Alice C.; Jugé, Lauriane; Bilston, Lynne E.; Cheng, Shaokoon

    2017-01-01

    . These results are in contrast with our previous findings in juvenile hydrocephalic rats which had significantly less brain compression (as the brain circumference was able to stretch with the cranium due to the open skull sutures) and had a significant increase in caudate putamen stiffness. These results suggest that change in brain mechanical properties in hydrocephalus is complex and is not solely dependent on brain tissue deformation. Further studies on the interactions between brain tissue stiffness, deformation, tissue oedema and neural damage are necessary before MRE can be used as a tool to track changes in brain biomechanics in hydrocephalus. PMID:28837671

  7. Reform the Nation's Juvenile Justice System. Issue Brief

    ERIC Educational Resources Information Center

    Annie E. Casey Foundation, 2009

    2009-01-01

    Across the nation, juvenile courts and corrections systems are littered with poorly conceived strategies that increase crime, endanger young people and damage their future prospects, waste billions of taxpayer dollars, and violate people's deepest held principles about equal justice under the law. While juvenile justice is largely a state and…

  8. The importance of social play network for infant or juvenile wild chimpanzees at Mahale Mountains National Park, Tanzania.

    PubMed

    Shimada, Masaki; Sueur, Cédric

    2014-11-01

    Along with social grooming and food sharing, social play is considered to be an affiliative interaction among wild chimpanzees. However, infant, juvenile, and adolescent animals engage in social play more frequently than adult animals, while other affiliative interactions occur more commonly between adults. We studied the social play of well-habituated and individually identified wild chimpanzees of the M group in Mahale Mountains National Park, Tanzania over two research periods in 2010 and 2011 (21 and 17 observation days, respectively). In both periods, most members of the M group, including adolescents and adults, took part in social play at least once. The degree centralities of the play network in infants, juveniles, and adolescents were significantly higher than those seen in adults. There was a significant and positive correlation between the total number of participations in social play and the degree centrality of play networks. Partial play networks and partial association networks consisting of individuals in same-age categories were significantly and positively correlated in infants and juveniles, although they were not correlated in adolescents or adults. These results suggest that infants, juveniles and adolescents who played frequently were more central in the group, whilst the adults who played infrequently were more peripheral. In addition, the overall structure of the social play network was stable over time. The frequency of participation in social play positively contributed to the development of affiliative social relationships within the chimpanzee group during the infant or juvenile period, but did not have the same effect during the adolescent and adult period. The social play network may allow individuals to develop the social techniques necessary to acquire a central position in a society and enable them to develop affiliative relationships during the infant or juvenile period. © 2014 Wiley Periodicals, Inc.

  9. Setting a minimum age for juvenile justice jurisdiction in California.

    PubMed

    S Barnert, Elizabeth; S Abrams, Laura; Maxson, Cheryl; Gase, Lauren; Soung, Patricia; Carroll, Paul; Bath, Eraka

    2017-03-13

    Purpose Despite the existence of minimum age laws for juvenile justice jurisdiction in 18 US states, California has no explicit law that protects children (i.e. youth less than 12 years old) from being processed in the juvenile justice system. In the absence of a minimum age law, California lags behind other states and international practice and standards. The paper aims to discuss these issues. Design/methodology/approach In this policy brief, academics across the University of California campuses examine current evidence, theory, and policy related to the minimum age of juvenile justice jurisdiction. Findings Existing evidence suggests that children lack the cognitive maturity to comprehend or benefit from formal juvenile justice processing, and diverting children from the system altogether is likely to be more beneficial for the child and for public safety. Research limitations/implications Based on current evidence and theory, the authors argue that minimum age legislation that protects children from contact with the juvenile justice system and treats them as children in need of services and support, rather than as delinquents or criminals, is an important policy goal for California and for other national and international jurisdictions lacking a minimum age law. Originality/value California has no law specifying a minimum age for juvenile justice jurisdiction, meaning that young children of any age can be processed in the juvenile justice system. This policy brief provides a rationale for a minimum age law in California and other states and jurisdictions without one.

  10. Appetite during consumption of enteral formula as a sole source of nutrition: the effect of supplementing pea-fibre and fructo-oligosaccharides.

    PubMed

    Whelan, Kevin; Efthymiou, Loukia; Judd, Patricia A; Preedy, Victor R; Taylor, Moira A

    2006-08-01

    Liquid enteral formulas are commonly used as a sole source of nutritional support of patients in hospital and community settings. Their effect on appetite has important consequences for dietary management of such patients and is likely to be affected by the formula composition. The aim of the present study was to compare appetite within healthy subjects consuming both a standard formula and one supplemented with pea-fibre (10 g/l) and fructo-oligosaccharide (FOS; 5 g/l) as a sole source of nutrition. Eleven healthy subjects consumed a standard formula or a pea-fibre/FOS formula as a sole source of nutrition for 14 d in a double-blind, cross-over trial. Appetite was recorded using standard 100 mm lines anchored at each end by a phrase denoting the most extreme appetite sensation. Consumption of the pea-fibre/FOS formula resulted in higher mean fullness (46 v. 37 mm, P=0.035), minimum fullness (13 v. 9 mm, P=0.024) and minimum satiety (12 v. 8 mm, P=0.012) compared to the standard formula. As there were no differences in macronutrient intake between formulas, these differences are likely to be due to supplementation with pea-fibre and FOS. The effect on appetite of the composition of an enteral formula, both with respect to nutrient content and functional components such as pea-fibre and FOS, may be an important aspect to consider in the dietary management of patients consuming enteral formula as a sole source of nutrition.

  11. Juvenile and resident salmonid movement and passage through culverts

    DOT National Transportation Integrated Search

    1998-07-01

    An outcome of the Washington State Department of Transportation's Juvenile Fish Passage Workshop on September 24, 1997, was agreement that a literature review was necessary to determine the state of knowledge about juvenile salmonid movement and pass...

  12. The Juvenile Transition: A Developmental Switch Point in Human Life History

    ERIC Educational Resources Information Center

    Del Giudice, Marco; Angeleri, Romina; Manera, Valeria

    2009-01-01

    This paper presents a new perspective on the transition from early to middle childhood (i.e., human juvenility), investigated in an integrative evolutionary framework. Juvenility is a crucial life history stage, when social learning and interaction with peers become central developmental functions; here it is argued that the "juvenile transition"…

  13. Self-healing juvenile cutaneous mucinosis: cases highlighting subcutaneous/fascial involvement.

    PubMed

    Nagaraj, Lavanya V; Fangman, William; White, Wain L; Woosley, John T; Prose, Neil; Selim, M Angelica; Morrell, Dean S

    2006-12-01

    Self-healing juvenile cutaneous mucinosis is a rare disease affecting young people characterized by transient cutaneous lesions and sometimes mild inflammatory symptoms. The deep dermal and subcutaneous features of this disorder have not yet been well described. The purpose of our study was to present 3 cases of self-healing juvenile cutaneous mucinosis in which the histopathologic features caused diagnostic confusion between this disorder and proliferative fasciitis. The study includes clinical and histologic findings of 3 patients, complemented by a literature review. The histologic descriptions of nodular lesions in self-healing juvenile cutaneous mucinosis reveal features of proliferative fasciitis, including a myxoid stroma and gangliocyte-like giant cells. Self-healing juvenile cutaneous mucinosis is a rare condition and has not been frequently reported in medical literature. Our findings are based on the pathologic features of 3 patients. Our findings further elucidate the histologic features of self-healing juvenile cutaneous mucinosis and expand the differential diagnosis for entities in which gangliocyte-like giant cells are noted.

  14. Reassessing the Anatomic Origin of the Juvenile Nasopharyngeal Angiofibroma.

    PubMed

    McKnight, Colin D; Parmar, Hemant A; Watcharotone, Kuanwong; Mukherji, Suresh K

    A modern imaging review is necessary to further define the anatomic origin of the juvenile nasopharyngeal angiofibroma. After institutional review board approval, a search from January 1998 to January 2013 yielded 33 male patients (aged 10-23 years) with pathologically proven juvenile nasopharyngeal angiofibroma lesions, as well as pretreatment computed tomography/magnetic resonance imaging. Juvenile nasopharyngeal angiofibroma involvement was assessed in the following regions: sphenopalatine foramen, pterygopalatine fossa, vidian canal, nasopharynx, nasal cavity, sphenoid sinus, choana, pterygomaxillary fissure/masticator space, orbit, and sphenoid bone. The choana and nasopharynx were involved in all 33 patients. In contrast, only 22 lesions involved the pterygopalatine fossa, 24 lesions involved the sphenopalatine foramen, and 28 lesions involved the vidian canal. Our results suggest that the juvenile nasopharyngeal angiofibroma origin is in the region of the choana and nasopharynx rather than the sphenopalatine foramen or pterygopalatine fossa.

  15. Drug Testing Guidelines and Practices for Juvenile Probation and Parole Agencies.

    ERIC Educational Resources Information Center

    American Probation and Parole Association, Lexington, KY.

    This document, intended as a resource manual, provides guidelines on drug testing. These topics are covered: (1) National Institute on Drug Abuse guidelines applicability; (2) introduction to legal issues, drug testing in juvenile probation and parole, and juvenile law; (3) mission of a juvenile parole agency; (4) purpose of testing; (5) drug…

  16. Current treatment of juvenile rheumatoid arthritis.

    PubMed

    Ilowite, Norman T

    2002-01-01

    Prognostic factors in juvenile rheumatoid arthritis (JRA) include polyarticular onset, polyarticular disease course, and rheumatoid factor positivity; in the systemic onset subtype, persistence of systemic features at 6 months after onset confers a worse prognosis. Timely diagnosis and appropriate aggressive treatment of patients with poor prognostic features improve quality of life and outcome. After nonsteroidal anti-inflammatory drugs, methotrexate is the most commonly used second-line agent. However, approximately one third of patients do not respond to methotrexate adequately. Randomized, placebo-controlled, clinical trials in patients with JRA are few, but one such trial with the tumor necrosis factor inhibitor etanercept shows that this drug is effective and well-tolerated. Other recently approved agents for rheumatoid arthritis, including infliximab, leflunomide, celecoxib, and rofecoxib, have not been adequately studied in pediatric patients, and the role of these agents in children with JRA remains to be determined.

  17. Juvenile skeletogenesis in anciently diverged sea urchin clades.

    PubMed

    Gao, Feng; Thompson, Jeffrey R; Petsios, Elizabeth; Erkenbrack, Eric; Moats, Rex A; Bottjer, David J; Davidson, Eric H

    2015-04-01

    Mechanistic understanding of evolutionary divergence in animal body plans devolves from analysis of those developmental processes that, in forms descendant from a common ancestor, are responsible for their morphological differences. The last common ancestor of the two extant subclasses of sea urchins, i.e., euechinoids and cidaroids, existed well before the Permian/Triassic extinction (252 mya). Subsequent evolutionary divergence of these clades offers in principle a rare opportunity to solve the developmental regulatory events underlying a defined evolutionary divergence process. Thus (i) there is an excellent and fairly dense (if yet incompletely analyzed) fossil record; (ii) cladistically confined features of the skeletal structures of modern euechinoid and cidaroid sea urchins are preserved in fossils of ancestral forms; (iii) euechinoids and cidaroids are among current laboratory model systems in molecular developmental biology (here Strongylocentrotus purpuratus [Sp] and Eucidaris tribuloides [Et]); (iv) skeletogenic specification in sea urchins is uncommonly well understood at the causal level of interactions of regulatory genes with one another, and with known skeletogenic effector genes, providing a ready arsenal of available molecular tools. Here we focus on differences in test and perignathic girdle skeletal morphology that distinguish all modern euechinoid from all modern cidaroid sea urchins. We demonstrate distinct canonical test and girdle morphologies in juveniles of both species by use of SEM and X-ray microtomography. Among the sharply distinct morphological features of these clades are the internal skeletal structures of the perignathic girdle to which attach homologous muscles utilized for retraction and protraction of Aristotles׳ lantern and its teeth. We demonstrate that these structures develop de novo between one and four weeks after metamorphosis. In order to study the underlying developmental processes, a method of section whole mount in

  18. Crocodylus acutus (American Crocodile). Long distance juvenile movement

    USGS Publications Warehouse

    Crespo, Rafael; Beauchamp, Jeffrey S.; Mazzotti, Frank; Cherkiss, Michael S.

    2015-01-01

    Crocodylus acutus (American Crocodile) is the most widely distributed New World crocodilian species with its range extending from Peru in the south to the southern tip of peninsular Florida in the north. Crocodylus acutus occupies primarily coastal brackish water habitat, however it also occurs in freshwater to hypersaline habitats (Thorbjarnarson 2010. In Crocodiles. Status Survey and Conservation Action Plan. [Third Edition], American Crocodile Crocodylus acutus, pp. 46–53 S.C. Manolis and C. Stevenson. Crocodile Specialist Group, Darwin). There is limited literature on long distance movements of juvenile crocodilians worldwide and no literature on juvenile crocodiles in Florida. However, adult C. acutus in Florida have been documented to make seasonal movements of 5–15 km from preferred foraging habitat to nesting beaches (Mazzotti 1983. The Ecology of Crocodylus acutus in Florida. PhD Dissertation. The Pennsylvania State University, University Park, Pennsylvania. 161pp), and one adult was documented making a 35 km trip from her nest site to preferred foraging habitat (Cherkiss et. al. 2006. Herpetol. Rev. 38:72–73). Rodda (1984. Herpetologica 40:444–451) reported on juvenile C. acutus movement in Gatun Lake, Panama, and found that juveniles stayed within 1 km of their nest site for the first month. Movements of juvenile Crocodylus porosus (Saltwater Crocodile) in a river system in Northern Australia showed a maximum movement of 38.9 km from a known nest site, with the majority of the crocodiles staying within 15.6 km downstream to 6.8 km upstream (Webb and Messel 1978. Aust. Wildlife Res. 5:263–283). Juvenile movement of Crocodylus niloticus (Nile Crocodile) in Lake Ngezi, Zimbabwe showed crocodiles restricted their movements from 1.0 km up to 4.5 km through the wet and dry seasons (Hutton 1989. Am. Zool. 29:1033–1049). Long distance movements of alligators were recorded for sizes ranging from 28 cm to 361 cm in a coastal refuge in Louisiana, where

  19. The Myositis Autoantibody Phenotypes of the Juvenile Idiopathic Inflammatory Myopathies

    PubMed Central

    Shah, Mona; Mamyrova, Gulnara; Huber, Adam M.; Rice, Madeline Murguia; Targoff, Ira N.; Miller, Frederick W.

    2013-01-01

    characterized by high frequencies of black race, severe onset, distal weakness, falling episodes, Raynaud phenomenon, cardiac involvement, high CK levels, chronic disease course, frequent hospitalization, and wheelchair use. Characteristic features of the anti-Mi-2 subgroup included Hispanic ethnicity, classic dermatomyositis and malar rashes, high CK levels, and very low mortality. Finally, the most common features of patients without any currently defined MSA or myositis-associated autoantibodies included linear extensor erythema, arthralgia, and a monocyclic disease course. Several demographic and clinical features were shared between juvenile and adult idiopathic inflammatory myopathy subgroups, but with several important differences. We conclude that juvenile myositis is a heterogeneous group of illnesses with distinct autoantibody phenotypes defined by varying clinical and demographic characteristics, laboratory features, and outcomes. PMID:23877355

  20. Krüppel homolog 1 and E93 mediate Juvenile hormone regulation of metamorphosis in the common bed bug, Cimex lectularius.

    PubMed

    Gujar, Hemant; Palli, Subba Reddy

    2016-05-17

    The common bed bug is an obligate hematophagous parasite of humans. We studied the regulation of molting and metamorphosis in bed bugs with a goal to identify key players involved. qRT-PCR studies on the expression of genes known to be involved in molting and metamorphosis showed high levels of Krüppel homolog 1 [Kr-h1, a transcription factor that plays key roles in juvenile hormone (JH) action] mRNA in the penultimate nymphal stage (N4). However, low levels of Kr-h1 mRNA were detected in the fifth and last nymphal stage (N5). Knockdown of Kr-h1 in N4 resulted in a precocious development of adult structures. Kr-h1 maintains the immature stage by suppressing E93 (early ecdysone response gene) in N4. E93 expression increases during the N5 in the absence of Kr-h1 and promotes the development of adult structures. Knockdown of E93 in N5 results in the formation of supernumerary nymphs. The role of JH in the suppression of adult structures through interaction with Kr-h1 and E93 was also studied by the topical application of JH analog, methoprene, to N5. Methoprene induced Kr-h1 and suppressed E93 and induced formation of the supernumerary nymph. These data show interactions between Kr-h1, E93 and JH in the regulation of metamorphosis in the bed bugs.

  1. Krüppel homolog 1 and E93 mediate Juvenile hormone regulation of metamorphosis in the common bed bug, Cimex lectularius

    PubMed Central

    Gujar, Hemant; Palli, Subba Reddy

    2016-01-01

    The common bed bug is an obligate hematophagous parasite of humans. We studied the regulation of molting and metamorphosis in bed bugs with a goal to identify key players involved. qRT-PCR studies on the expression of genes known to be involved in molting and metamorphosis showed high levels of Krüppel homolog 1 [Kr-h1, a transcription factor that plays key roles in juvenile hormone (JH) action] mRNA in the penultimate nymphal stage (N4). However, low levels of Kr-h1 mRNA were detected in the fifth and last nymphal stage (N5). Knockdown of Kr-h1 in N4 resulted in a precocious development of adult structures. Kr-h1 maintains the immature stage by suppressing E93 (early ecdysone response gene) in N4. E93 expression increases during the N5 in the absence of Kr-h1 and promotes the development of adult structures. Knockdown of E93 in N5 results in the formation of supernumerary nymphs. The role of JH in the suppression of adult structures through interaction with Kr-h1 and E93 was also studied by the topical application of JH analog, methoprene, to N5. Methoprene induced Kr-h1 and suppressed E93 and induced formation of the supernumerary nymph. These data show interactions between Kr-h1, E93 and JH in the regulation of metamorphosis in the bed bugs. PMID:27185064

  2. Juvenile Crime and Criminal Justice: Resolving Border Disputes

    ERIC Educational Resources Information Center

    Fagan, Jeffrey

    2008-01-01

    Rising juvenile crime rates during the 1970s and 1980s spurred state legislatures across the country to exclude or transfer a significant share of offenders under the age of eighteen to the jurisdiction of the criminal court, essentially redrawing the boundary between the juvenile and adult justice systems. Jeffrey Fagan examines the legal…

  3. Effects of multiple acute stressors on the predator avoidance ability and physiology of juvenile Chinook salmon

    USGS Publications Warehouse

    Mesa, Matthew G.

    1994-01-01

    Northern squaw fish Ptychocheilus oregonensis are the predominant predators of juvenile Pacific salmonids Oncorhynchus spp. in the Columbia River, and their predation rates are greatest just below dams. Because juvenile salmonids are commonly subjected to multiple stressors at dams in the course of their seaward migration, high predation rates below dams may be due in part to an increase in the vulnerability of stressed fish. I conducted laboratory experiments to examine the predator avoidance ability and physiological stress responses of juvenile chinook salmon O. tshawytscha subjected to treatments (stressors) designed to simulate routine hatchery practices (multiple handlings) or dam passage (multiple agitations). Both stressors resulted in lethargic behavior in the fish, and agitation also caused disorieniation and occasional injury. When equal numbers of stressed and unstressed fish were exposed to northern squawfish for up to 1 h, significantly more stressed fish were eaten, but this effect was not evident during longer exposures. The lack of differential predation in trials lasting up to 24 h can be explained by the rapid development of schooling behavior in the prey, but other possibilities exist, such as changing ratios of stressed and unstressed prey over time. Concentrations of plasma cortisol, glucose, and lactate in fish subjected to multiple stressors were similar and sometimes cumulative, returned to prestress levels within 6-24 h, and correlated poorly with predator avoidance ability. My results suggest that juvenile salmonids are capable of avoiding predators within 1 h after being subjected to multiple acute stressors even though physiological homeostasis may be altered for up to 24 h. Therefore, because juvenile salmonids typically reside in lailrace areas for only a short time after dam passage, measures aimed at reducing physical stress or protecting them as they migrate through dam tailraces may help alleviate the relatively intense predation

  4. Assessment of Microvascular Abnormalities by Nailfold Capillaroscopy in Juvenile Dermatomyositis After Medium- to Long-Term Followup.

    PubMed

    Barth, Zoltan; Witczak, Birgit N; Flatø, Berit; Koller, Akos; Sjaastad, Ivar; Sanner, Helga

    2018-05-01

    In juvenile dermatomyositis (DM), microvascular abnormalities, measured by nailfold capillaroscopy (NFC), are common early in the disease course. We aimed to compare the presence of NFC abnormalities in patients with medium- to long-term juvenile DM with that of controls, and to explore associations between NFC abnormalities and disease activity and other disease characteristics. Fifty-eight juvenile DM patients with a median disease duration of 16.8 (range 2-38) years were clinically examined and compared with matched controls. By NFC, we assessed nailfold capillary density (NCD), giant capillaries, scleroderma, and neovascular pattern (defined as scleroderma active or late pattern). NFC was analyzed with researchers blinded to patient/control identity and disease characteristics. We measured disease activity and damage by validated tools, and patients were categorized as having active or inactive disease according to the Paediatric Rheumatology International Trials Organisation criteria. Compared to controls, patients had decreased NCD (mean ± SD 6.4 ± 2.1/mm versus 7.6 ± 0.8/mm; P = 0.001) and showed more abnormality in all other NFC parameters; 36% of patients versus 4% of controls had NCD <6/mm (P < 0.001). Giant capillaries, scleroderma, and neovascular pattern were found in 9%, 84%, and 41% of patients, respectively. Patients with active disease (n = 30) presented more frequently with neovascular pattern than patients with inactive disease (n = 28) (P = 0.041). Decreased NCD and neovascular pattern were associated with higher levels of disease activity and impaired muscle function. After medium- to long-term followup, juvenile DM patients had decreased NCD and, often, neovascular pattern; both were associated with higher levels of disease activity and impaired muscle function. This suggests that NFC can be a biomarker for disease activity in longstanding juvenile DM too. © 2017, American College of Rheumatology.

  5. Effect of TBT on Ruditapes decussatus juveniles.

    PubMed

    Coelho, M R; Langston, W J; Bebianno, M J

    2006-06-01

    The effects of sublethal concentrations of tributyltin (TBT) on growth of juvenile clams Ruditapes decussatus were determined during exposure to TBT concentrations of 50, 100 and 250 ng l(-1) (as Sn) for a period up to two years. Length and weight of clams increased continuously in all treatments throughout the experimental period, and, overall, rates were not significantly influenced by TBT exposure, although final length and weight were inversely related to increasing TBT concentration. Juvenile R. decussatus therefore appear to be less sensitive to TBT than larval stages. Some juveniles exposed to TBT developed abnormal shell growth, laterally, changing the typical flattened shape of clams into a more "rounded" form. This characteristic was more visible in the anterior margins of valves than posteriorly, and mainly observed in clams exposed to TBT at 50 ng l(-1) (as Sn).

  6. 78 FR 66383 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Juvenile...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-05

    ... DEPARTMENT OF JUSTICE Office of Justice Programs Office of Juvenile Justice and Delinquency... Juvenile Justice and Delinquency Prevention, will be submitting the following information collection... Kristen Kracke, (202) 616-3649, Office of Juvenile Justice and Delinquency Prevention, Office of Justice...

  7. Environmental conditions and prey-switching by a seabird predator impact juvenile salmon survival

    USGS Publications Warehouse

    Wells, Brian K.; Santora, Jarrod A.; Henderson, Mark J.; Warzybok, Pete; Jahncke, Jaime; Bradley, Russell W.; Huff, David D.; Schroeder, Isaac D.; Nelson, Peter; Field, John C.; Ainley, David G.

    2017-01-01

    Due to spatio-temporal variability of lower trophic-level productivity along the California Current Ecosystem (CCE), predators must be capable of switching prey or foraging areas in response to changes in environmental conditions and available forage. The Gulf of the Farallones in central California represents a biodiversity hotspot and contains the largest common murre (Uria aalge) colonies along the CCE. During spring, one of the West Coast's most important Chinook salmon (Oncorhynchus tshawytscha) populations out-migrates into the Gulf of the Farallones. We quantify the effect of predation on juvenile Chinook salmon associated with ecosystem-level variability by integrating long-term time series of environmental conditions (upwelling, river discharge), forage species abundance within central CCE, and population size, at-sea distribution, and diet of the common murre. Our results demonstrate common murres typically forage in the vicinity of their offshore breeding sites, but in years in which their primary prey, pelagic young-of-year rockfish (Sebastesspp.), are less available they forage for adult northern anchovies (Engraulis mordax) nearshore. Incidentally, while foraging inshore, common murre consumption of out-migrating juvenile Chinook salmon, which are collocated with northern anchovy, increases and population survival of the salmon is significantly reduced. Results support earlier findings that show timing and strength of upwelling, and the resultant forage fish assemblage, is related to Chinook salmon recruitment variability in the CCE, but we extend those results by demonstrating the significance of top-down impacts associated with these bottom-up dynamics. Our results demonstrate the complexity of ecosystem interactions and impacts between higher trophic-level predators and their prey, complexities necessary to quantify in order to parameterize ecosystem models and evaluate likely outcomes of ecosystem management options.

  8. Environmental conditions and prey-switching by a seabird predator impact juvenile salmon survival

    NASA Astrophysics Data System (ADS)

    Wells, Brian K.; Santora, Jarrod A.; Henderson, Mark J.; Warzybok, Pete; Jahncke, Jaime; Bradley, Russell W.; Huff, David D.; Schroeder, Isaac D.; Nelson, Peter; Field, John C.; Ainley, David G.

    2017-10-01

    Due to spatio-temporal variability of lower trophic-level productivity along the California Current Ecosystem (CCE), predators must be capable of switching prey or foraging areas in response to changes in environmental conditions and available forage. The Gulf of the Farallones in central California represents a biodiversity hotspot and contains the largest common murre (Uria aalge) colonies along the CCE. During spring, one of the West Coast's most important Chinook salmon (Oncorhynchus tshawytscha) populations out-migrates into the Gulf of the Farallones. We quantify the effect of predation on juvenile Chinook salmon associated with ecosystem-level variability by integrating long-term time series of environmental conditions (upwelling, river discharge), forage species abundance within central CCE, and population size, at-sea distribution, and diet of the common murre. Our results demonstrate common murres typically forage in the vicinity of their offshore breeding sites, but in years in which their primary prey, pelagic young-of-year rockfish (Sebastes spp.), are less available they forage for adult northern anchovies (Engraulis mordax) nearshore. Incidentally, while foraging inshore, common murre consumption of out-migrating juvenile Chinook salmon, which are collocated with northern anchovy, increases and population survival of the salmon is significantly reduced. Results support earlier findings that show timing and strength of upwelling, and the resultant forage fish assemblage, is related to Chinook salmon recruitment variability in the CCE, but we extend those results by demonstrating the significance of top-down impacts associated with these bottom-up dynamics. Our results demonstrate the complexity of ecosystem interactions and impacts between higher trophic-level predators and their prey, complexities necessary to quantify in order to parameterize ecosystem models and evaluate likely outcomes of ecosystem management options.

  9. Setting a minimum age for juvenile justice jurisdiction in California

    PubMed Central

    Barnert, Elizabeth S.; Abrams, Laura S.; Maxson, Cheryl; Gase, Lauren; Soung, Patricia; Carroll, Paul; Bath, Eraka

    2018-01-01

    Purpose Despite the existence of minimum age laws for juvenile justice jurisdiction in 18 US states, California has no explicit law that protects children (i.e. youth less than 12 years old) from being processed in the juvenile justice system. In the absence of a minimum age law, California lags behind other states and international practice and standards. The paper aims to discuss these issues. Design/methodology/approach In this policy brief, academics across the University of California campuses examine current evidence, theory, and policy related to the minimum age of juvenile justice jurisdiction. Findings Existing evidence suggests that children lack the cognitive maturity to comprehend or benefit from formal juvenile justice processing, and diverting children from the system altogether is likely to be more beneficial for the child and for public safety. Research limitations/implications Based on current evidence and theory, the authors argue that minimum age legislation that protects children from contact with the juvenile justice system and treats them as children in need of services and support, rather than as delinquents or criminals, is an important policy goal for California and for other national and international jurisdictions lacking a minimum age law. Originality/value California has no law specifying a minimum age for juvenile justice jurisdiction, meaning that young children of any age can be processed in the juvenile justice system. This policy brief provides a rationale for a minimum age law in California and other states and jurisdictions without one. Paper type Conceptual paper PMID:28299968

  10. When love hurts: assessing the intersectionality of ethnicity, socio-economic status, parental connectedness, child abuse, and gender attitudes in juvenile violent delinquency.

    PubMed

    Lahlah, Esmah; Lens, Kim M E; Bogaerts, Stefan; van der Knaap, Leontien M

    2013-11-01

    Researchers have not yet reached agreement about the validity of several competing explanations that seek to explain ethnic differences in juvenile violent offending. Ethnicity cannot solely explain why boys with an ethnic minority background commit more (violent) crimes. By assessing the intersectionality of structural, cultural and individual considerations, both the independent effects as well as the interplay between different factors can be examined. This study shows that aforementioned factors cumulatively play a role in severe violent offending, with parental connectedness and child abuse having the strongest associations. However, since most variables interact and ethnicity is associated with those specific factors, a conclusion to be drawn is that ethnicity may be relevant as an additional variable predicting severe violent offending although indirectly. Copyright © 2013 Elsevier Ltd. All rights reserved.

  11. 78 FR 56940 - Agency Information Collection Activities; Proposed Collection; Comments Requested: Juvenile...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-16

    ... Justice (DOJ), Office of Justice Programs, Office of Juvenile Justice and Delinquency Prevention, will be... information, please contact Brecht Donoghue, (202) 305-1270, Office of Juvenile Justice and Delinquency..., Office of Juvenile Justice and Delinquency Prevention, United States Department of Justice. (4) Affected...

  12. Spatial pattern of risk of common raven predation on desert tortoises

    USGS Publications Warehouse

    Kristan, W. B.; Boarman, W.I.

    2003-01-01

    Common Ravens (Corvus corax) in the Mojave Desert of California, USA are subsidized by anthropogenic resources. Large numbers of nonbreeding ravens are attracted to human developments and thus are spatially restricted, whereas breeding ravens are distributed more evenly throughout the area. We investigated whether the spatial distribution of risk of predation by ravens to juveniles of the threatened desert tortoise (Gopherus agassizii) was determined by the spatial distribution of (1) nonbreeding ravens at human developments (leading to "spillover" predation) or (2) breeding individuals throughout developed and undeveloped areas (leading to " hyperpredation"). Predation risk, measured using styrofoam models of juvenile desert tortoises, was high near places attracting large numbers of nonbreeding ravens, near successful nests, and far from successful nests when large numbers of nonbreeding ravens were present. Patterns consistent with both "spillover" predation and "hyperpredation" were thus observed, attributed to the nonbreeding and breeding segments of the population, respectively. Furthermore, because locations of successful nests changed almost annually, consistent low-predation refugia for juvenile desert tortoises were nearly nonexistent. Consequently, anthropogenic resources for ravens could indirectly lead to the suppression, decline, or even extinction of desert tortoise populations.

  13. Long-wavelength (red) light produces hyperopia in juvenile and adolescent tree shrews.

    PubMed

    Gawne, Timothy J; Ward, Alexander H; Norton, Thomas T

    2017-11-01

    In infant tree shrews, exposure to narrow-band long-wavelength (red) light, that stimulates long-wavelength sensitive cones almost exclusively, slows axial elongation and produces hyperopia. We asked if red light produces hyperopia in juvenile and adolescent animals, ages when plus lenses are ineffective. Animals were raised in fluorescent colony lighting (100-300 lux) until they began 13days of red-light treatment at 11 (n=5, "infant"), 35 (n=5, "juvenile") or 95 (n=5, "adolescent") days of visual experience (DVE). LEDs provided 527-749 lux on the cage floor. To control for the higher red illuminance, a fluorescent control group (n=5) of juvenile (35 DVE) animals was exposed to ∼975 lux. Refractions were measured daily; ocular component dimensions at the start and end of treatment and end of recovery in colony lighting. These groups were compared with normals (n=7). In red light, the refractive state of both juvenile and adolescent animals became significantly (P<0.05) hyperopic: juvenile 3.9±1.0 diopters (D, mean±SEM) vs. normal 0.8±0.1D; adolescent 1.6±0.2D vs. normal 0.4±0.1D. The fluorescent control group refractions (0.6±0.3D) were normal. In red-treated juveniles the vitreous chamber was significantly smaller than normal (P<0.05): juvenile 2.67±0.03mmvs. normal 2.75±0.02mm. The choroid was also significantly thicker: juvenile 77±4μmvs. normal 57±3μm (P<0.05). Although plus lenses do not restrain eye growth in juvenile tree shrews, the red light-induced slowed growth and hyperopia in juvenile and adolescent tree shrews demonstrates that the emmetropization mechanism is still capable of restraining eye growth at these ages. Copyright © 2017 Elsevier Ltd. All rights reserved.

  14. Clinical aspects of juvenile myoclonic epilepsy.

    PubMed

    Genton, Pierre; Thomas, Pierre; Kasteleijn-Nolst Trenité, Dorothee G A; Medina, Marco Tulio; Salas-Puig, Javier

    2013-07-01

    Juvenile myoclonic epilepsy (JME) is a recognizable, frequent epileptic syndrome. The most typical ictal phenomenon is bilateral myoclonia without loss of consciousness (M), with most patients also presenting with generalized tonic-clonic seizures (GTCSs) and some with absence seizures (ASs). The most striking features of JME are its onset around the time of puberty and the fact that seizure episodes occur after awakening from a sleep period or in the evening relaxation period and are facilitated by sleep deprivation and sudden arousal. Photic sensitivity is common in the EEG laboratory but uncommon or unrecognized in daily life. The clinical features of JME make it easy to diagnose. In recent years, awareness of JME has increased, and patients are often accurately diagnosed clinically before confirmation by EEG. The typical circumstance at diagnosis is a first GTCS episode, and one learns during the interview that the patient has had M in the morning for some time before the GTCS episode. There are only few differential diagnoses: the adolescent-onset progressive myoclonus epilepsies, or other forms of idiopathic generalized epilepsies of adolescence. With JME being so common, we propose that a first GTCS episode in a teenager should be considered as revealing JME until proven otherwise. Copyright © 2013. Published by Elsevier Inc.

  15. Juvenile Justice in Australia 2009-10. Juvenile Justice Series. Number 8

    ERIC Educational Resources Information Center

    Aalders, Rachel; Morgan, Kirsten

    2011-01-01

    In Australia, the state and territory governments are responsible for dealing with young people who are involved in crime. One major aspect of the juvenile justice system is the supervision of children and young people who have committed or are alleged to have committed an offence. This report presents information on the young people under…

  16. Youth Homelessness and Juvenile Justice. Best Practices in Interagency Collaboration Brief Series

    ERIC Educational Resources Information Center

    National Center for Homeless Education at SERVE, 2011

    2011-01-01

    This brief is designed for juvenile justice agencies and professionals (including law enforcement officers, juvenile probation officers, attorneys, juvenile court personnel, and detention facility staff), as well as State Coordinators for Homeless Education and local homeless education liaisons. It provides basic information to help educators…

  17. The Effects of Computerized Information Systems on Juvenile Courts

    ERIC Educational Resources Information Center

    Albrecht, Gary L.

    1976-01-01

    Organizational theorists alternatively hypothesized that computerized information systems (CIS) will produce no necessary changes, centralization, or decentralization in juvenile courts. This hypothesis is supported by the results of a four year study on the phenomenon. Suggestions are offered for improving the juvenile judicial system through…

  18. Manual of Standards for Juvenile Training Schools and Services.

    ERIC Educational Resources Information Center

    Commission on Accreditation for Corrections, Rockville, MD.

    This manual of standards for juvenile training schools and services contains 487 American Correctional Association standards for the accreditation of juvenile training schools (youth development centers, villages, correction centers, treatment centers, service centers, homes for boys and girls, camps, and ranches). Standards presented are…

  19. Further evidence for a locus for autosomal dominant juvenile glaucoma on chromosome 1q and evidence for genetic heterogeneity

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Wiggs, J.; Paglinauan, C.; Stawski, S.

    1994-09-01

    Glaucoma is a term used to describe a group of disorders which have in common a characteristic degeneration of the optic nerve associated with typical visual field defects and usually associated with elevated intraocular pressure. Two percent of white Americans and 6-10% of black Americans are affected by the disease. Compelling data indicate that susceptibility to many types of glaucoma is inherited. Hereditary juvenile glaucoma is one form of glaucoma that develops in children and is inherited as an autosomal dominant trait with high penetrance. Using a single large Caucasian pedigree affected with autosomal dominant juvenile glaucoma, Sheffield discovered positivemore » linkage to a group of markers that map to a 30 cM region on the long arm of chromosome 1 (1q21-q31). We have subsequently identified three unrelated Caucasian pedigrees affected with autosomal dominant juvenile glaucoma that also demonstrate linkage to this region on chromosome 1, with the highest combined lod score of 5.12 at theta = .05 for marker D1S218. The identification of critical recombinant individuals in our three pedigrees has allowed us to further localize the disease gene to a 12 cM region between markers D1S242 and D1S431. In addition, we have identified several pedigrees which do not demonstrate linkage to chromosome 1q, including a black family affected with autosomal dominant juvenile glaucoma that is indistinguishable clinically from the disorder affecting the caucasian pedigrees and three pedigrees affected with pigmentary dispersion syndrome, a form of glaucoma that also affects the juvenile population and is also inherited as an autosomal dominant trait. These findings provide evidence for genetic heterogeneity in juvenile glaucoma.« less

  20. Association of digital cushion thickness with sole temperature measured with the use of infrared thermography.

    PubMed

    Oikonomou, G; Trojacanec, P; Ganda, E K; Bicalho, M L S; Bicalho, R C

    2014-07-01

    The main objective of this study was to investigate the association between digital cushion thickness and sole temperature measured by infrared thermography. Data were collected from 216 lactating Holstein cows at 4 to 10d in milk (DIM). Cows were locomotion scored and sole temperature was measured after claw trimming (a minimum delay of 3 min was allowed for the hoof to cool) using an infrared thermography camera. Temperature was measured at the typical ulcer site of the lateral digit of the left hind foot. Immediately after the thermographic image was obtained, the thickness of the digital cushion was measured by ultrasonography. Rumen fluid samples were collected with a stomach tube and sample pH was measured immediately after collection. Additionally, a blood sample was obtained and used for measurements of serum concentrations of β-hydroxybutyrate (BHBA), nonesterified fatty acids (NEFA), and haptoglobin. To evaluate the associations of digital cushion thickness with sole temperature, a linear regression model was built using the GLIMMIX procedure in SAS software (SAS Institute Inc., Cary, NC). Sole temperature was the response variable, and digital cushion thickness quartiles, locomotion score group, rumen fluid pH, rumen fluid sample volume, environmental temperature, age in days, and serum levels of NEFA, BHBA, and haptoglobin were fitted in the model. Only significant variables were retained in the final model. Simple linear regression scatter plots were used to illustrate associations between sole temperature (measured by infrared thermography at the typical ulcer site) and environmental temperature and between NEFA and BHBA serum levels and haptoglobin. One-way ANOVA was used to compare rumen fluid pH for different locomotion score groups and for different digital cushion quartiles. Results from the multivariable linear regression model showed that sole temperature increased as locomotion scores increased and decreased as digital cushion thickness

  1. Structural evolution of the Semail Ophiolite metamorphic sole, Wadi Hawasina and Northern Jebel Nakhl Culmination, Oman

    NASA Astrophysics Data System (ADS)

    Hurtado, C.; Bailey, C.; Visokay, L.; Scharf, A.

    2017-12-01

    The Semail ophiolite is the world's largest and best-exposed ophiolite sequence, however the processes associated with both oceanic detachment and later emplacement onto the Arabian continental margin remain enigmatic. This study examines the upper mantle section of the ophiolite, its associated metamorphic sole, and the autochthonous strata beneath the ophiolite at two locations in northern Oman. Our purpose is to understand the structural history of ophiolite emplacement and evaluate the deformation kinematics of faulted and sheared rocks in the metamorphic sole. At Wadi Hawasina, the base of the ophiolite is defined by a 5- to 15-m thick zone of penetratively-serpentinized mylonitic peridotite. Kinematic indicators record top-to-the SW (reverse) sense-of-shear with a triclinic deformation asymmetry. An inverted metamorphic grade is preserved in the 300- to 500-m thick metamorphic sole that is thrust over deep-water sedimentary rocks of the Hawasina Group. The study site near Buwah, in the northern Jebel Nakhl culmination, contains a N-to-S progression of mantle peridotite, metamorphic sole, and underlying Jurassic carbonates. Liswanite crops out in NW-SE trending linear ridges in the peridotite. The metamorphic sole includes well-foliated quartzite, metachert, and amphibolite. Kinematic evidence indicates that the liswanite and a serpentinized mélange experienced top to-the north (normal) sense-of-shear. Two generations of E-W striking, N-dipping normal faults separate the autochthonous sequence from the metamorphic sole, and also cut out significant sections of the metamorphic sole. Fabric analysis reveals that the metamorphic sole experienced flattening strain (K<0.2) that accumulated during pure shear-dominated general shear (Wk<0.4). Normal faulting and extension at the Buwah site indicates that post-ophiolite deformation is significant in the Jebel Akhdar and Jebel Nakhl culminations.

  2. Sea Louse Infection of Juvenile Sockeye Salmon in Relation to Marine Salmon Farms on Canada's West Coast

    PubMed Central

    Price, Michael H. H.; Proboszcz, Stan L.; Routledge, Rick D.; Gottesfeld, Allen S.; Orr, Craig; Reynolds, John D.

    2011-01-01

    Background Pathogens are growing threats to wildlife. The rapid growth of marine salmon farms over the past two decades has increased host abundance for pathogenic sea lice in coastal waters, and wild juvenile salmon swimming past farms are frequently infected with lice. Here we report the first investigation of the potential role of salmon farms in transmitting sea lice to juvenile sockeye salmon (Oncorhynchus nerka). Methodology/Principal Findings We used genetic analyses to determine the origin of sockeye from Canada's two most important salmon rivers, the Fraser and Skeena; Fraser sockeye migrate through a region with salmon farms, and Skeena sockeye do not. We compared lice levels between Fraser and Skeena juvenile sockeye, and within the salmon farm region we compared lice levels on wild fish either before or after migration past farms. We matched the latter data on wild juveniles with sea lice data concurrently gathered on farms. Fraser River sockeye migrating through a region with salmon farms hosted an order of magnitude more sea lice than Skeena River populations, where there are no farms. Lice abundances on juvenile sockeye in the salmon farm region were substantially higher downstream of farms than upstream of farms for the two common species of lice: Caligus clemensi and Lepeophtheirus salmonis, and changes in their proportions between two years matched changes on the fish farms. Mixed-effects models show that position relative to salmon farms best explained C. clemensi abundance on sockeye, while migration year combined with position relative to salmon farms and temperature was one of two top models to explain L. salmonis abundance. Conclusions/Significance This is the first study to demonstrate a potential role of salmon farms in sea lice transmission to juvenile sockeye salmon during their critical early marine migration. Moreover, it demonstrates a major migration corridor past farms for sockeye that originated in the Fraser River, a complex of

  3. Sea louse infection of juvenile sockeye salmon in relation to marine salmon farms on Canada's west coast.

    PubMed

    Price, Michael H H; Proboszcz, Stan L; Routledge, Rick D; Gottesfeld, Allen S; Orr, Craig; Reynolds, John D

    2011-02-09

    Pathogens are growing threats to wildlife. The rapid growth of marine salmon farms over the past two decades has increased host abundance for pathogenic sea lice in coastal waters, and wild juvenile salmon swimming past farms are frequently infected with lice. Here we report the first investigation of the potential role of salmon farms in transmitting sea lice to juvenile sockeye salmon (Oncorhynchus nerka). We used genetic analyses to determine the origin of sockeye from Canada's two most important salmon rivers, the Fraser and Skeena; Fraser sockeye migrate through a region with salmon farms, and Skeena sockeye do not. We compared lice levels between Fraser and Skeena juvenile sockeye, and within the salmon farm region we compared lice levels on wild fish either before or after migration past farms. We matched the latter data on wild juveniles with sea lice data concurrently gathered on farms. Fraser River sockeye migrating through a region with salmon farms hosted an order of magnitude more sea lice than Skeena River populations, where there are no farms. Lice abundances on juvenile sockeye in the salmon farm region were substantially higher downstream of farms than upstream of farms for the two common species of lice: Caligus clemensi and Lepeophtheirus salmonis, and changes in their proportions between two years matched changes on the fish farms. Mixed-effects models show that position relative to salmon farms best explained C. clemensi abundance on sockeye, while migration year combined with position relative to salmon farms and temperature was one of two top models to explain L. salmonis abundance. This is the first study to demonstrate a potential role of salmon farms in sea lice transmission to juvenile sockeye salmon during their critical early marine migration. Moreover, it demonstrates a major migration corridor past farms for sockeye that originated in the Fraser River, a complex of populations that are the subject of conservation concern.

  4. Impact of multiple stressors on juvenile fish in estuaries of the northeast Pacific.

    PubMed

    Toft, Jason D; Munsch, Stuart H; Cordell, Jeffery R; Siitari, Kiira; Hare, Van C; Holycross, Brett M; DeBruyckere, Lisa A; Greene, Correigh M; Hughes, Brent B

    2018-05-01

    A key step in identifying global change impacts on species and ecosystems is to quantify effects of multiple stressors. To date, the science of global change has been dominated by regional field studies, experimental manipulation, meta-analyses, conceptual models, reviews, and studies focusing on a single stressor or species over broad spatial and temporal scales. Here, we provide one of the first studies for coastal systems examining multiple stressor effects across broad scales, focused on the nursery function of 20 estuaries spanning 1,600 km of coastline, 25 years of monitoring, and seven fish and invertebrate species along the northeast Pacific coast. We hypothesized those species most estuarine dependent and negatively impacted by human activities would have lower presence and abundances in estuaries with greater anthropogenic land cover, pollution, and water flow stress. We found significant negative relationships between juveniles of two of seven species (Chinook salmon and English sole) and estuarine stressors. Chinook salmon were less likely to occur and were less abundant in estuaries with greater pollution stress. They were also less abundant in estuaries with greater flow stress, although this relationship was marginally insignificant. English sole were less abundant in estuaries with greater land cover stress. Together, we provide new empirical evidence that effects of stressors on two fish species culminate in detectable trends along the northeast Pacific coast, elevating the need for protection from pollution, land cover, and flow stressors to their habitats. Lack of response among the other five species could be related to differing resistance to specific stressors, type and precision of the stressor metrics, and limitations in catch data across estuaries and habitats. Acquiring improved measurements of impacts to species will guide future management actions, and help predict how estuarine nursery functions can be optimized given anthropogenic

  5. Cutaneous xanthogranulomas, hepatosplenomegaly, anemia, and thrombocytopenia as presenting signs of juvenile myelomonocytic leukemia.

    PubMed

    Cham, Elaine; Siegel, Dawn; Ruben, Beth S

    2010-01-01

    The development of xanthogranulomas has been linked to hematologic malignancies in children and adults, based on a number of reports in the literature. In children, a specific association between juvenile xanthogranuloma, neurofibromatosis 1, and juvenile myelomonocytic leukemia has been described. We report a case of a 9-month-old child, without a known diagnosis of neurofibromatosis 1, who presented with hepatosplenomegaly, anemia, thrombocytopenia, and multiple cutaneous nodules, which were confirmed to be juvenile xanthogranulomas upon biopsy. A concurrent work-up showed that the child had juvenile myelomonocytic leukemia. Although cutaneous juvenile xanthogranulomas are benign lesions, in several reported cases they have been shown to herald leukemia. This association between xanthogranulomas and hematologic malignancy is poorly understood. Juvenile xanthogranulomas have a number of morphologic variants and clinical presentations that can be confused with the cutaneous lesions of Langerhans cell histiocytosis and dermatofibroma. Recognition of the broad clinicopathologic spectrum of juvenile xanthogranulomas is critical for proper diagnosis.

  6. Tracking from the tropics reveals behaviour of juvenile songbirds on their first spring migration.

    PubMed

    McKinnon, Emily A; Fraser, Kevin C; Stanley, Calandra Q; Stutchbury, Bridget J M

    2014-01-01

    Juvenile songbirds on spring migration travel from tropical wintering sites to temperate breeding destinations thousands of kilometres away with no prior experience to guide them. We provide a first glimpse at the migration timing, routes, and stopover behaviour of juvenile wood thrushes (Hylocichla mustelina) on their inaugural spring migration by using miniaturized archival geolocators to track them from Central America to the U.S. and Canada. We found significant differences between the timing of juvenile migration and that of more experienced adults: juveniles not only departed later from tropical wintering sites relative to adults, they also became progressively later as they moved northward. The increasing delay was driven by more frequent short stops by juveniles along their migration route, particularly in the U.S. as they got closer to breeding sites. Surprisingly, juveniles were just as likely as adults to cross the Gulf of Mexico, an open-water crossing of 800-1000 km, and migration route at the Gulf was not significantly different for juveniles relative to adults. To determine if the later departure of juveniles was related to poor body condition in winter relative to adults, we examined percent lean body mass, fat scores, and pectoral muscle scores of juvenile versus adult birds at a wintering site in Belize. We found no age-related differences in body condition. Later migration timing of juveniles relative to adults could be an adaptive strategy (as opposed to condition-dependent) to avoid the high costs of fast migration and competition for breeding territories with experienced and larger adults. We did find significant differences in wing size between adults and juveniles, which could contribute to lower flight efficiency of juveniles and thus slower overall migration speed. We provide the first step toward understanding the "black box" of juvenile songbird migration by documenting their migration timing and en route performance.

  7. Tracking from the Tropics Reveals Behaviour of Juvenile Songbirds on Their First Spring Migration

    PubMed Central

    McKinnon, Emily A.; Fraser, Kevin C.; Stanley, Calandra Q.; Stutchbury, Bridget J. M.

    2014-01-01

    Juvenile songbirds on spring migration travel from tropical wintering sites to temperate breeding destinations thousands of kilometres away with no prior experience to guide them. We provide a first glimpse at the migration timing, routes, and stopover behaviour of juvenile wood thrushes (Hylocichla mustelina) on their inaugural spring migration by using miniaturized archival geolocators to track them from Central America to the U.S. and Canada. We found significant differences between the timing of juvenile migration and that of more experienced adults: juveniles not only departed later from tropical wintering sites relative to adults, they also became progressively later as they moved northward. The increasing delay was driven by more frequent short stops by juveniles along their migration route, particularly in the U.S. as they got closer to breeding sites. Surprisingly, juveniles were just as likely as adults to cross the Gulf of Mexico, an open-water crossing of 800–1000 km, and migration route at the Gulf was not significantly different for juveniles relative to adults. To determine if the later departure of juveniles was related to poor body condition in winter relative to adults, we examined percent lean body mass, fat scores, and pectoral muscle scores of juvenile versus adult birds at a wintering site in Belize. We found no age-related differences in body condition. Later migration timing of juveniles relative to adults could be an adaptive strategy (as opposed to condition-dependent) to avoid the high costs of fast migration and competition for breeding territories with experienced and larger adults. We did find significant differences in wing size between adults and juveniles, which could contribute to lower flight efficiency of juveniles and thus slower overall migration speed. We provide the first step toward understanding the “black box” of juvenile songbird migration by documenting their migration timing and en route performance. PMID:25141193

  8. Division of Juvenile Justice

    Science.gov Websites

    Behavioral Health Office of Children's Services Office of the Commissioner Office of Substance Misuse and Addiction Prevention Finance & Management Services Health Care Services Juvenile Justice Public Assistance Public Health Seniors & Disabilities Services Boards, Councils & Commissions Services

  9. 75 FR 22163 - Meeting of the Federal Advisory Committee on Juvenile Justice

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-27

    ... Federal Advisory Committee on Juvenile Justice AGENCY: Office of Juvenile Justice and Delinquency... Justice and Delinquency Prevention (OJJDP) announces the Spring meeting of the Federal Advisory Committee...)(2)(C-E) of the Juvenile Justice and Delinquency Prevention Act of 2002. The FACJJ is composed of one...

  10. Treatment and postrelease rehabilitative programs for juvenile offenders.

    PubMed

    Underwood, Lee A; Knight, Pamela

    2006-04-01

    The juvenile justice system has become notably aware of the increasing use of postrelease rehabilitative treatment interventions for offenders. In many instances, juvenile justice systems are required to ensure that core treatment needs of youth are met. As a result of the heightened awareness of the need for postrelease rehabilitation treatment programs, many researchers and providers are calling for more systematic approaches to offender treatment. This article summarizes a body of literature on juvenile offenders who have specialized postrelease rehabilitative treatment needs. It reviews cognitive-behavioral theoretical models and core postrelease treatment strategies. It presents a review of youth who have specialized needs in light of postrelease practices, describes several model postrelease rehabilitation programs, and reviews outcomes of these programs.

  11. National Survey of Reading Programs for Incarcerated Juvenile Offenders.

    ERIC Educational Resources Information Center

    Brunner, Michael S.

    A survey was undertaken to provide a profile of current reading programs in juvenile correctional facilities. Data were gathered to determine whether "illiterates" exist in the juvenile correctional facilities; if oral comprehension is better than reading comprehension; what approaches and strategies are used for teaching word…

  12. Juvenile xanthogranuloma: an unusual cause of intratesticular mass in childhood.

    PubMed

    Weiss, Vivian L; Brock, John W; Cajaiba, Mariana M

    2014-05-01

    Juvenile xanthogranuloma (JXG) is a common histiocytic disorder of infancy and early childhood, most frequently presenting with cutaneous lesions. Whereas involvement of several visceral sites is well documented, only 4 cases of primary testicular JXG have been reported. Although this benign disorder typically presents with a favorable clinical outcome, the unusual presentation as an intratesticular lesion can lead to diagnostic challenges. In this study, we present the case of a 6-month-old male child with an incidentally discovered testicular mass that was diagnosed as a JXG and briefly review the existing literature in an attempt to bring awareness to this uncommon presentation. Copyright © 2014 Elsevier Inc. All rights reserved.

  13. Coblation-assisted endonasal endoscopic resection of juvenile nasopharyngeal angiofibroma.

    PubMed

    Ye, L; Zhou, X; Li, J; Jin, J

    2011-09-01

    Juvenile nasopharyngeal angiofibroma may be successfully resected using endoscopic techniques. However, the use of coblation technology for such resection has not been described. This study aimed to document cases of Fisch class I juvenile nasopharyngeal angiofibroma with limited nasopharyngeal and nasal cavity extension, which were completely resected using an endoscopic coblation technique. We retrospectively studied 23 patients with juvenile nasopharyngeal angiofibroma who underwent resection with either traditional endoscopic instruments (n = 12) or coblation (n = 11). Intra-operative blood loss and overall operative time were recorded. The mean tumour resection time for coblation and traditional endoscopic instruments was 87 and 136 minutes, respectively (t = 9.962, p < 0.001). Mean intra-operative blood loss was 121 and 420 ml, respectively (t = 28.944, p < 0.001), a significant difference. Both techniques achieved complete tumour resection with minimal damage to adjacent tissues, and no recurrence in any patient. Coblation successfully achieves transnasal endoscopic resection of juvenile nasopharyngeal angiofibroma (Fisch class I), with good surgical margins and minimal blood loss.

  14. Fingerprints of lagoonal life: Migration of the marine flatfish Solea solea assessed by stable isotopes and otolith microchemistry

    NASA Astrophysics Data System (ADS)

    Dierking, Jan; Morat, Fabien; Letourneur, Yves; Harmelin-Vivien, Mireille

    2012-06-01

    The commercially important marine flatfish common sole (Solea solea) facultatively uses NW Mediterranean lagoons as nurseries. To assess the imprint left by the lagoonal passage, muscle carbon (C) and nitrogen (N) isotope values of S. solea juveniles caught in Mauguio lagoon in spring (shortly after arrival from the sea) and in autumn (before the return to the sea) were compared with values of juveniles from adjacent coastal marine nurseries. In addition, in the lagoon, sole otolith stable isotope (C and oxygen (O)) and elemental (11 elements) composition in spring and autumn, and the stable isotope composition (C and N) of organic matter sources in autumn, were determined. Overall, our data indicate that a distinct lagoonal signature existed. Specifically, lagoon soles showed a strong enrichment in muscle tissue 15N (>6‰) compared to their coastal relatives, likely linked to sewage inputs (see below), and a depletion in 13C (1-2‰), indicative of higher importance of 13C depleted terrestrial POM in the lagoon compared to coastal nurseries. In addition, over the time spent in the lagoon, sole otolith δ13C and δ18O values and otolith elemental composition changed significantly. Analysis of the lagoon sole foodweb based on C and N isotopes placed sediment particulate organic matter (POM) at the base. Seagrasses, formerly common but in decline in Mauguio lagoon, played a minor role in the detritus cycle. The very strong 15N enrichment of the entire foodweb (+7 to +11‰) compared to little impacted lagoons and coastal areas testified of important human sewage inputs. Regarding the S. solea migration, the analysis of higher turnover and fast growth muscle tissue and metabolically inert and slower growth otoliths indicated that soles arrived at least several weeks prior to capture in spring, and that no migrations took place in summer. In the autumn, the high muscle δ15N value acquired in Mauguio lagoon would be a good marker of recent return to the sea, whereas

  15. Cardiac juvenile xanthogranuloma in an infant presenting with pericardial effusion.

    PubMed

    Kobayashi, Daisuke; Delius, Ralph E; Debelenko, Larisa V; Aggarwal, Sanjeev

    2013-01-01

    Juvenile xanthogranuloma is a rare histiocytic disorder of childhood mainly affecting skin and rarely deep soft tissues and viscera. We report a 2-month-old infant who presented with respiratory distress secondary to a large pericardial effusion associated with an epicardial mass. Excisional biopsy was performed and the mass was diagnosed as juvenile xanthogranuloma. The child is well without evidence of disease 8 months following the excision. The corresponding literature on juvenile xanthogranuloma with cardiac manifestations is reviewed. © 2012 Wiley Periodicals, Inc.

  16. Medication use in juvenile uveitis patients enrolled in the Childhood Arthritis and Rheumatology Research Alliance Registry.

    PubMed

    Henderson, Lauren A; Zurakowski, David; Angeles-Han, Sheila T; Lasky, Andrew; Rabinovich, C Egla; Lo, Mindy S

    2016-02-16

    There is not yet a commonly accepted, standardized approach in the treatment of juvenile idiopathic uveitis when initial steroid therapy is insufficient. We sought to assess current practice patterns within a large cohort of children with juvenile uveitis. This is a cross-sectional cohort study of patients with uveitis enrolled in the Childhood Arthritis and Rheumatology Research Alliance (CARRAnet) registry. Clinical information including, demographic information, presenting features, disease complications, and medications were collected. Chi-square and Fisher's exact tests were used to assess for associations between medications and clinical characteristics. Ninety-two children with idiopathic and 656 with juvenile idiopathic arthritis (JIA)-associated uveitis were identified. Indication (arthritis or uveitis) for medication use was not available for JIA patients; therefore, detailed analysis was limited to children with idiopathic uveitis. In this group, 94 % had received systemic steroids. Methotrexate (MTX) was used in 76 % of patients, with oral and subcutaneous forms given at similar rates. In multivariable analysis, non-Caucasians were more likely to be treated initially with subcutaneous MTX (P = 0.003). Of the 53 % of patients treated with a biologic DMARD, all received a tumor necrosis factor (TNF) inhibitor. TNF inhibitor use was associated with a higher frequency of cataracts (52 % vs 21 %; P = 0.001) and antinuclear antibody positivity (49 % vs 29 %; P = 0.04), although overall complication rates were not higher in these patients. Among idiopathic uveitis patients enrolled in the CARRAnet registry, MTX was the most commonly used DMARD, with subcutaneous and oral forms equally favored. Patients who received a TNF inhibitor were more likely to be ANA positive and have cataracts.

  17. Sluiceway Operations to Pass Juvenile Salmonids at The Dalles Dam, Columbia River, USA

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Johnson, Gary E.; Khan, Fenton; Skalski, J. R.

    Existing ice and trash sluiceways are commonly used to pass juvenile salmonids downstream at hydropower dams through a benign, non-turbine route. At The Dalles Dam on the Columbia River, managers undertook optimizing operations of sluiceway weirs to maximize survival of juvenile salmonids at the powerhouse. We applied fixed-location hydroacoustic methods to compare fish passage rates and sluiceway efficiencies for two weir configurations during 2004 and 2005: three weirs versus six weirs, located at the mid- versus east powerhouse, respectively. We also analyzed horizontal distributions of passage at the sluiceway and turbines and the effects of operating turbines beneath open sluicewaymore » gates to provide supporting data relevant to operations optimization. Based on the findings, we recommend the following for long-term operations for the sluiceway at The Dalles Dam: open six rather than three sluiceway weirs to take advantage of the maximum hydraulic capacity of the sluiceway; open the three weirs above the western-most operating main turbine unit (MU) and the three weirs at MU 8 where turbine passage rates are relatively high; operate the turbine units below open sluiceway weirs as a standard procedure; operate the sluiceway 24 h/d year-round to maximize its benefits to juvenile salmonids; and use the same operations for spring and summer emigrants. These operational concepts are transferable to dams where sluiceway surface flow outlets are used protect downstream migrating fishes.« less

  18. Improving comfort of shoe sole through experiments based on CAD-FEM modeling.

    PubMed

    Franciosa, Pasquale; Gerbino, Salvatore; Lanzotti, Antonio; Silvestri, Luca

    2013-01-01

    It was reported that next to style, comfort is the second key aspect in purchasing footwear. One of the most important components of footwear is the shoe sole, whose design is based on many factors such as foot shape/size, perceived comfort and materials. The present paper focuses on the parametric analysis of a shoe sole to improve the perceived comfort. The sensitivity of geometric and material design factors on comfort degree was investigated by combining real experimental tests and CAD-FEM simulations. The correlation between perceived comfort and physical responses, such as plantar pressures, was estimated by conducting real tests. Four different conditions were analyzed: subjects wearing three commercially available shoes and in a barefoot condition. For each condition, subjects expressed their perceived comfort score. By adopting plantar sensors, the plantar pressures were also monitored. Once given such a correlation, a parametric FEM model of the footwear was developed. In order to better simulate contact at the plantar surface, a detailed FEM model of the foot was also generated from CT scan images. Lastly, a fractional factorial design array was applied to study the sensitivity of different sets of design factors on comfort degree. The findings of this research showed that the sole thickness and its material highly influence perceived comfort. In particular, softer materials and thicker soles contribute to increasing the degree of comfort. Copyright © 2012 IPEM. Published by Elsevier Ltd. All rights reserved.

  19. Otolith oxygen isotopes measured by high-precision secondary ion mass spectrometry reflect life history of a yellowfin sole (Limanda aspera).

    PubMed

    Matta, Mary Elizabeth; Orland, Ian J; Ushikubo, Takayuki; Helser, Thomas E; Black, Bryan A; Valley, John W

    2013-03-30

    The oxygen isotope ratio (δ(18)O value) of aragonite fish otoliths is dependent on the temperature and the δ(18)O value of the ambient water and can thus reflect the environmental history of a fish. Secondary ion mass spectrometry (SIMS) offers a spatial-resolution advantage over conventional acid-digestion techniques for stable isotope analysis of otoliths, especially given their compact nature. High-precision otolith δ(18)O analysis was conducted with an IMS-1280 ion microprobe to investigate the life history of a yellowfin sole (Limanda aspera), a Bering Sea species known to migrate ontogenetically. The otolith was cut transversely through its core and one half was roasted to eliminate organic contaminants. Values of δ(18)O were measured in 10-µm spots along three transects (two in the roasted half, one in the unroasted half) from the core toward the edge. Otolith annual growth zones were dated using the dendrochronology technique of crossdating. Measured values of δ(18)O ranged from 29.0 to 34.1‰ (relative to Vienna Standard Mean Ocean Water). Ontogenetic migration from shallow to deeper waters was reflected in generally increasing δ(18)O values from age-0 to approximately age-7 and subsequent stabilization after the expected onset of maturity at age-7. Cyclical variations of δ(18)O values within juvenile otolith growth zones, up to 3.9‰ in magnitude, were caused by a combination of seasonal changes in the temperature and the δ(18)O value of the ambient water. The ion microprobe produced a high-precision and high-resolution record of the relative environmental conditions experienced by a yellowfin sole that was consistent with population-level studies of ontogeny. Furthermore, this study represents the first time that crossdating has been used to ensure the dating accuracy of δ(18)O measurements in otoliths. Copyright © 2013 John Wiley & Sons, Ltd.

  20. The developing juvenile ischium: macro-radiographic insights.

    PubMed

    Maclean, Stephen J; Black, Sue M; Cunningham, Craig A

    2014-09-01

    Despite the importance of the human pelvis as a weight-bearing structure, there is a paucity of literature that discusses the development of the juvenile innominate from a biomechanical perspective. This study aims to add to the limited body of literature pertaining to this topic through the qualitative analysis of the gross architecture of the human ischium during the juvenile period. Macro-radiographs of 55 human ischia ranging from 28 intra-uterine weeks to 14 years of age were examined using intensity-gradient color mapping to highlight changes in gross structural morphology with increasing age. A clear pattern of maturation was observed in the juvenile ischium with increasing age. The acetabular component and ramus of the ischium consistently displayed low bone intensity in the postnatal skeletal material. Conversely the posterior body of the ischium, and in particular the ischial spine and lesser sciatic notch, exhibited increasing bone intensity which first arose at 1-2 years of age and became more expansive in older cohorts. The intensity patterns observed within the developing juvenile ischium are indicative of the potential factors influencing the maturation of this skeletal element. While the low intensity acetabular fossa indicates a lack of significant biomechanical interactions, the posterior increase in bone intensity may be related to the load-bearing nature of the posterior ischium. © 2014 Wiley Periodicals, Inc.

  1. [Medical treatment of juvenile idiopathic arthritis].

    PubMed

    Horneff, Gerd; Augustin, Sankt

    2008-09-01

    Juvenile idiopathic arthritis is the most common chronic autoimmune disease. The outcome of this inflammatory disease is uncertain. Patients may suffer from severe joint damage leading to mutilations as well as from extraarticular manifestations. The prognosis is variable and depends in part on the number of affected joints and the occurrence of extraarticular manifestations. Pharmacomedical treatment has changed markedly in the last decade. It consists of a combination therapy including nonsteroidal antirheumatics, glucocorticoids either systemic or intraarticular, classical disease modifying drugs like sulfasalazine and methotrexate as well as leflunomide and biologicals. These new therapeutic strategies have effected dramatic improvements also in patients with severe, so far intractable disease. The TNF inhibitors etanercept and adalimumab have succeeded in double blind controlled trials, while infliximab failed to show significant superiority over placebo. Further treatment options include inhibitors of interleukin 1 (anakinra and rilonacept), interleukin 6 (tocilizumab) and inhibitors of T-cell activation (abatacept). This review will summarize the pharmacotherapeutic options based on studies published in the literature.

  2. Psychiatric and Medical Health Care Policies in Juvenile Detention Facilities

    ERIC Educational Resources Information Center

    Pajer, Kathleen A.; Kelleher, Kelly; Gupta, Ravindra A.; Rolls, Jennifer; Gardner, William

    2007-01-01

    A study aims to examine the existing health care policies in U.S. juvenile detention centres. The results conclude that juvenile detention facilities have many shortfalls in providing care for adolescents, particularly mental health care.

  3. Juvenile Justice Reform: State Experiences. Criminal Justice Paper #4.

    ERIC Educational Resources Information Center

    Pierce, Robert; Yondorf, Barbara

    Community-based programs in the juvenile justice system present a promising alternative to the disappointing results achieved by large institutional facilities. A diverse group of states has found that intensive, individualized services provided in small, family-like residential settings or in the juvenile's own home yield comparable or reduced…

  4. Interactive effects of salinity and elevated CO2 levels on juvenile eastern oysters, Crassostrea virginica.

    PubMed

    Dickinson, Gary H; Ivanina, Anna V; Matoo, Omera B; Pörtner, Hans O; Lannig, Gisela; Bock, Christian; Beniash, Elia; Sokolova, Inna M

    2012-01-01

    Rising levels of atmospheric CO(2) lead to acidification of the ocean and alter seawater carbonate chemistry, which can negatively impact calcifying organisms, including mollusks. In estuaries, exposure to elevated CO(2) levels often co-occurs with other stressors, such as reduced salinity, which enhances the acidification trend, affects ion and acid-base regulation of estuarine calcifiers and modifies their response to ocean acidification. We studied the interactive effects of salinity and partial pressure of CO(2) (P(CO2)) on biomineralization and energy homeostasis in juveniles of the eastern oyster, Crassostrea virginica, a common estuarine bivalve. Juveniles were exposed for 11 weeks to one of two environmentally relevant salinities (30 or 15 PSU) either at current atmospheric P(CO2) (∼400 μatm, normocapnia) or P(CO2) projected by moderate IPCC scenarios for the year 2100 (∼700-800 μatm, hypercapnia). Exposure of the juvenile oysters to elevated P(CO2) and/or low salinity led to a significant increase in mortality, reduction of tissue energy stores (glycogen and lipid) and negative soft tissue growth, indicating energy deficiency. Interestingly, tissue ATP levels were not affected by exposure to changing salinity and P(CO2), suggesting that juvenile oysters maintain their cellular energy status at the expense of lipid and glycogen stores. At the same time, no compensatory upregulation of carbonic anhydrase activity was found under the conditions of low salinity and high P(CO2). Metabolic profiling using magnetic resonance spectroscopy revealed altered metabolite status following low salinity exposure; specifically, acetate levels were lower in hypercapnic than in normocapnic individuals at low salinity. Combined exposure to hypercapnia and low salinity negatively affected mechanical properties of shells of the juveniles, resulting in reduced hardness and fracture resistance. Thus, our data suggest that the combined effects of elevated P(CO2) and

  5. Gender Differences in Delinquency and Juvenile Justice Processing: Evidence from National Data

    ERIC Educational Resources Information Center

    Tracy, Paul E.; Kempf-Leonard, Kimberly; Abramoske-James, Stephanie

    2009-01-01

    This article traces the historical coverage of the gender issue in the criminological literature. It also provides contemporary empirical evidence about differences and similarities between girls and boys with respect to juvenile crime and to processing by the juvenile justice system, by analyzing several national juvenile crime data series, all…

  6. Effect of moderate exercise on peritoneal neutrophils from juvenile rats.

    PubMed

    Braz, Glauber Ruda; Ferreira, Diorginis Soares; Pedroza, Anderson Apolonio; da Silva, Aline Isabel; Sousa, Shirley Maria; Pithon-Curi, Tania Cristina; Lagranha, Claudia

    2015-09-01

    Previous studies showed that moderate exercise in adult rats enhances neutrophil function, although no studies were performed in juvenile rats. We evaluated the effects of moderate exercise on the neutrophil function in juvenile rats. Viability and neutrophils function were evaluated. Moderate exercise did not impair the viability and mitochondrial transmembrane potential of neutrophils, whereas there was greater reactive oxygen species production (164%; p < 0.001) and phagocytic capacity (29%; p < 0.05). Our results suggest that moderate exercise in juvenile rats improves neutrophil function, similar to adults.

  7. Rising incidence of thyroid cancer in Singapore not solely due to micropapillary subtype.

    PubMed

    Shulin, J H; Aizhen, J; Kuo, S M; Tan, W B; Ngiam, K Y; Parameswaran, R

    2018-04-01

    Introduction The annual incidence of thyroid cancer is known to vary with geographic area, age and gender. The increasing incidence of thyroid cancer has been attributed to increase in detection of micropapillary subtype, among other factors. The aim of the study was to investigate time trends in the incidence of thyroid cancer in Singapore, an iodine-sufficient area. Materials and methods Data retrieved from the Singapore National Cancer Registry on all thyroid cancers that were diagnosed from 1974 to 2013 were reviewed. We studied the time trends of thyroid cancer based on gender, race, pathology and treatment modalities where available. Results The age-standardised incidence rate of thyroid cancer increased to 5.6/100,000 in 2013 from 2.5/100,000 in 1974. Thyroid cancer appeared to be more common in women, with a higher incidence in Chinese and Malays compared with Indians. Papillary carcinoma is the most common subtype. The percentage of papillary microcarcinoma has remained relatively stable at around 38% of all papillary cancers between 2007 and 2013. Although the incidence of thyroid cancer has increased since 1974, the mortality rate has remained stable. Conclusion This trend of increase in incidence of thyroid cancer in Singapore compares with other published series; however, the rise seen was not solely due to micropapillary type. Thyroid cancer was also more common in Chinese and Malays compared with Indians for reasons that needs to be studied further.

  8. Drought tolerance in eggs and juveniles of the Iberian slug, Arion lusitanicus.

    PubMed

    Slotsbo, Stine; Fisker, Karina Vincents; Hansen, Lars Monrad; Holmstrup, Martin

    2011-12-01

    The spread of invasive species is an increasing problem world wide. The invasive slug Arion lusitanicus has spread to most parts of Europe, where it often is considered as a serious pest. There is a need for better knowledge of its ecophysiology to be able to predict the effect of climatic factors, such as temperature and humidity on the population dynamics and abundance. The aim of the present study was to assemble data on the water balance and drought tolerance of eggs and juveniles of A. lusitanicus. Both eggs and juveniles had little capacity to prevent evaporative water loss and lost water when the ambient humidity fell below 99.8 and 99.5%, respectively. The water conductance of the cuticle of juveniles was 242 μg cm(-2) h(-1) mmHg(-1) and resembles that of other slug species. Both eggs and juveniles of A. lusitanicus tolerate a substantial water loss. There was no difference in water loss resistance between eggs and juveniles, but the eggs were slightly more tolerant to water loss than the juveniles. The percent water loss causing 50% mortality was 72% for the juveniles and 81% for the eggs. Despite A. lusitanicus' tolerance of substantial water loss, its survival depends on humid habitats.

  9. Juvenile Fibromyalgia: A Multidisciplinary Approach to Treatment.

    PubMed

    Tesher, Melissa S

    2015-06-01

    A 14-year-old boy presented with months of severe widespread musculoskeletal pain. He was profoundly fatigued and unable to attend school. Laboratory evaluation, including complete blood count, comprehensive metabolic panel, inflammatory markers, and thyroid function, was unrevealing. Physical examination was also normal except for multiple tender points. The patient was diagnosed with juvenile primary fibromyalgia syndrome and referred for multidisciplinary treatment including physical therapy, exercise, and counseling, and his daily functioning gradually improves. Juvenile fibromyalgia is a complex syndrome that often severely limits patients' activities and can impede normal adolescent development. Effective treatment requires an understanding of the biologic, psychologic, and social factors contributing to the perpetuation of chronic pain. The author reviews the diagnostic criteria, pathophysiology, and treatment of juvenile fibromyalgia. Medications, particularly antidepressants and anticonvulsants, can be useful adjuncts to therapy. However, multimodal pain management including intensive physical therapy, exercise, counseling, and sleep hygiene is most effective in treating fibromyalgia. Copyright 2015, SLACK Incorporated.

  10. [No X-chromosome linked juvenile foveal retinoschisis].

    PubMed

    Pérez Alvarez, M J; Clement Fernández, F

    2002-08-01

    To describe the clinical characteristics of two cases of juvenile foveal retinoschisis in women with an atypical hereditary pattern, no X-chromosome linked. An autosomal recessive inheritance is proposed. Two generations of a family (5 members) in which only two sisters were evaluated. The complete examination of these two cases includes retinography, fluorescein angiography, automated perimetry, color vision testing, electroretinogram, electrooculogram and visually evoked potentials. Comparing our cases with the classic form of X-linked juvenile retinoschisis, they are less severely affected. The best visual acuity and the less disturbed or even normal electroretinogram confirm this fact. We emphasise the existence of isolated plaques of retinal pigment epithelium atrophy with perivascular pigment clumps without foveal schisis in one patient, which could represent an evolved form of this entity. The hereditary foveal juvenile retinoschisis in women suggests an autosomal inheritance (autosomal recessive in our cases) and presents less severe involvement (Arch Soc Esp Oftalmol 2002; 77: 443-448).

  11. Criminal Justice Information Policy. Privacy and Juvenile Justice Records.

    ERIC Educational Resources Information Center

    Belair, Robert R.

    Elected officials, justice professionals, courts and other institutions of our society are contributing to a reevaluation of juvenile justice information policy. The tenet that juveniles who commit crimes are not culpable is being challenged as the public's safety and economic well being is increasingly threatened by children engaged in criminal…

  12. Current Juvenile Corrections Professional Development Practices and Future Directions

    ERIC Educational Resources Information Center

    Gagnon, Joseph C.; Houchins, David E.; Murphy, Kristin M.

    2012-01-01

    Personnel in juvenile corrections (JC) work with students who have challenging academic, behavioral, and mental health needs. The complexity of the JC setting requires personnel to be highly skilled in effective practices to meet the demands of their job. Unfortunately, juvenile correctional personnel are neglected as an important link in the…

  13. The Juvenile Addiction Risk Rating: Development and Initial Psychometrics

    ERIC Educational Resources Information Center

    Powell, Michael; Newgent, Rebecca A.

    2016-01-01

    This article describes the development and psychometrics of the Juvenile Addiction Risk Rating. The Juvenile Addiction Risk Rating is a brief screening of addiction potential based on 10 risk factors predictive of youth alcohol and drug-related problems that assists examiners in more accurate treatment planning when self-report information is…

  14. Federal Juvenile Delinquency Programs: First Analysis and Evaluation. Volumes One and Two.

    ERIC Educational Resources Information Center

    National Inst. for Juvenile Justice and Delinquency Prevention (Dept. of Justice/LEAA), Washington, DC.

    This publication outlines the activities of the Office of Juvenile Justice since its creation. It also reports on the entire Federal effort in delinquency prevention and juvenile justice. An introductory section describes the history and purpose of the Juvenile Justice and Delinquency Prevention Act of 1974 (Public Law 93-415). Other sections…

  15. Recognition and Accountability: Sole Parent Postgraduates in University Conditions

    ERIC Educational Resources Information Center

    Hook, Genine A.

    2015-01-01

    This paper aims to examine some of ways sole parents sought recognition as postgraduate students in Australian universities. Judith Butler's theory of recognition notes that recognition is always partial and any account we give of ourselves must be given to another. Participants articulated that supervisors were critical in the process of…

  16. 78 FR 51061 - TRICARE; Reimbursement of Sole Community Hospitals and Adjustment to Reimbursement of Critical...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-20

    ... DEPARTMENT OF DEFENSE 32 CFR Part 199 [DoD-2010-HA-0072] RIN 0720-AB41 TRICARE; Reimbursement of Sole Community Hospitals and Adjustment to Reimbursement of Critical Access Hospitals; Correction... TRICARE; Reimbursement of Sole Community Hospitals and Adjustment to Reimbursement of Critical Access...

  17. Risk assessment for juvenile justice: a meta-analysis.

    PubMed

    Schwalbe, Craig S

    2007-10-01

    Risk assessment instruments are increasingly employed by juvenile justice settings to estimate the likelihood of recidivism among delinquent juveniles. In concert with their increased use, validation studies documenting their predictive validity have increased in number. The purpose of this study was to assess the average predictive validity of juvenile justice risk assessment instruments and to identify risk assessment characteristics that are associated with higher predictive validity. A search of the published and grey literature yielded 28 studies that estimated the predictive validity of 28 risk assessment instruments. Findings of the meta-analysis were consistent with effect sizes obtained in larger meta-analyses of criminal justice risk assessment instruments and showed that brief risk assessment instruments had smaller effect sizes than other types of instruments. However, this finding is tentative owing to limitations of the literature.

  18. Arc restores juvenile plasticity in adult mouse visual cortex

    PubMed Central

    Jenks, Kyle R.; Kim, Taekeun; Pastuzyn, Elissa D.; Okuno, Hiroyuki; Taibi, Andrew V.; Bear, Mark F.

    2017-01-01

    The molecular basis for the decline in experience-dependent neural plasticity over age remains poorly understood. In visual cortex, the robust plasticity induced in juvenile mice by brief monocular deprivation during the critical period is abrogated by genetic deletion of Arc, an activity-dependent regulator of excitatory synaptic modification. Here, we report that augmenting Arc expression in adult mice prolongs juvenile-like plasticity in visual cortex, as assessed by recordings of ocular dominance (OD) plasticity in vivo. A distinguishing characteristic of juvenile OD plasticity is the weakening of deprived-eye responses, believed to be accounted for by the mechanisms of homosynaptic long-term depression (LTD). Accordingly, we also found increased LTD in visual cortex of adult mice with augmented Arc expression and impaired LTD in visual cortex of juvenile mice that lack Arc or have been treated in vivo with a protein synthesis inhibitor. Further, we found that although activity-dependent expression of Arc mRNA does not change with age, expression of Arc protein is maximal during the critical period and declines in adulthood. Finally, we show that acute augmentation of Arc expression in wild-type adult mouse visual cortex is sufficient to restore juvenile-like plasticity. Together, our findings suggest a unifying molecular explanation for the age- and activity-dependent modulation of synaptic sensitivity to deprivation. PMID:28790183

  19. Juvenile Idiopathic Arthritis in Olmsted County, Minnesota, 1960-2013.

    PubMed

    Krause, Megan L; Crowson, Cynthia S; Michet, C John; Mason, Thomas; Muskardin, Theresa Wampler; Matteson, Eric L

    2016-01-01

    To evaluate the incidence and prevalence of juvenile idiopathic arthritis (JIA) in Olmsted County, Minnesota in 1994-2013 and trends in juvenile rheumatoid arthritis (JRA) in 1960-2013. Cases of arthritis in 1994-2013 were identified by diagnosis code with medical chart review to confirm diagnosis separately for JIA and JRA. Overall incidence rates with 95% confidence intervals (95% CIs) were age and sex adjusted to the 2010 US white population. Comparisons were made with an earlier (1960-1993) cohort from this same population. Seventy-one incident cases of JIA in 1994-2013 were identified, with an overall age- and sex-adjusted incidence rate of 10.3 per 100,000 (95% CI 7.9-12.7). Forty-two (59%) were female, with an incidence of 12.4 per 100,000 (95% CI 8.6-16.2), as compared to 8.3 per 100,000 (95% CI 5.2-11.3) in males. The most common subtype was oligoarthritis (63%). The mean ± SD age at diagnosis was 8.2 ± 5.3 years. The prevalence of JIA on January 1, 2000 and January 1, 2010 was 51.0 per 100,000 (95% CI 25.2-76.8) and 57.6 per 100,000 (95% CI 31.0-94.5), respectively. When the annual incidence of JRA was compared over time from 1960 to 2013, there was no significant change in incidence overall; however, the incidence decreased among females (P = 0.003). A cyclic pattern of incidence was observed, with peaks approximately every 10 years. Similar to the findings with regard to incidence, prevalence did not change overall, but decreased among females (P = 0.048). There were 4 deaths in the cohort of JRA patients diagnosed in 1960-2013; the standardized mortality ratio was 1.50 (95% CI 0.41-3.83). Incidence of juvenile arthritis overall in Olmsted County, Minnesota has not changed significantly in the past 53 years. A consistent cyclic pattern was noted. © 2016, American College of Rheumatology.

  20. Weapons Used by Juveniles and Adult Offenders in U.S. Parricide Cases

    ERIC Educational Resources Information Center

    Heide, Kathleen M.; Petee, Thomas A.

    2007-01-01

    In recent decades, attention has focused on juveniles who kill their parents. Research has indicated that increases in juvenile homicide have been associated with the availability of firearms, but little is known about the weapons juveniles use to kill their parents and whether their weapon usage is different from that of adult children who kill…

  1. Psychiatric Disorders of Youth in Detention. Juvenile Justice Bulletin

    ERIC Educational Resources Information Center

    Teplin, Linda A.; Abram, Karen M.; McClelland, Gary M.; Mericle, Amy A.; Dulcan, Mina K.; Washburn, Jason J.

    2006-01-01

    This bulletin examines the prevalence of alcohol, drug, and mental disorders among youth at the Cook County (Illinois) Juvenile Temporary Detention Center, by gender, race/ethnicity, and age. Drawing on research conducted by the Northwestern Juvenile Project, this bulletin finds that nearly two-thirds of males and three-quarters of females studied…

  2. Periorbital edema as the presenting sign of juvenile dermatomyositis.

    PubMed

    Sevigny, G M; Mathes, B M

    1999-01-01

    We report a case of juvenile dermatomyositis that presented with periorbital edema. Dermatomyositis is an autoimmune disorder with cutaneous manifestations including heliotrope patches, Gottron's papules, periungual telangiectasisas, and subcutaneous calcifications. Periorbital edema may accompany the classic heliotrope rash and, as in this case, may be the only presenting sign of juvenile dermatomyositis.

  3. The Miami-Dade Juvenile Assessment Center National Demonstration Project

    ERIC Educational Resources Information Center

    Walters, Wansley; Dembo, Richard; Beaulaurier, Richard; Cocozza, Joseph; De La Rosa, Mario; Poythress, Norman; Skowyra, Kathy; Veysey, Bonita M.

    2005-01-01

    The Miami-Dade Juvenile Assessment Center National Demonstration Project (NDP) is serving as a national model for the transformation of front end services in the juvenile justice system in a unique sociocultural setting.We discuss the background and vision of the NDP, its implementation and accomplishments in six major program areas: (1)…

  4. Assessing Youth Strengths in a Residential Juvenile Correctional Program

    ERIC Educational Resources Information Center

    Barton, William H.; Mackin, Juliette R.; Fields, Jerrold

    2006-01-01

    Assessments and case plans that identify and build upon the strengths of clients, their families and communities are increasingly being used in many fields of practice, but are only beginning to be introduced in juvenile justice settings. This article describes a strengths-based assessment tool developed specifically for use in juvenile justice…

  5. Juvenile Diversion as Agency Policy: A Twenty-Year Perspective.

    ERIC Educational Resources Information Center

    Seng, Magnus J.; Bensinger, Gad J.

    1994-01-01

    Examines a youth service bureau over a 20-year period, with a total client population of some 47,000 during this period. Findings indicate that this agency maintained its emphasis on diversion of juveniles from the traditional juvenile justice system not because of funding agency pressure, but because diversion is sound policy. (LKS)

  6. Talocalcaneal Joint Middle Facet Coalition Resection With Interposition of a Juvenile Hyaline Cartilage Graft.

    PubMed

    Tower, Dyane E; Wood, Ryan W; Vaardahl, Michael D

    2015-01-01

    Talocalcaneal joint middle facet coalition is the most common tarsal coalition, occurring in ≤2% of the population. Fewer than 50% of involved feet obtain lasting relief of symptoms after nonoperative treatment, and surgical intervention is commonly used to relieve symptoms, increase the range of motion, improve function, reconstruct concomitant pes planovalgus, and prevent future arthrosis from occurring at the surrounding joints. Several approaches to surgical intervention are available for patients with middle facet coalitions, ranging from resection to hindfoot arthrodesis. We present a series of 4 cases, in 3 adolescent patients, of talocalcaneal joint middle facet coalition resection with interposition of a particulate juvenile hyaline cartilaginous allograft (DeNovo(®) NT Natural Tissue Graft, Zimmer, Inc., Warsaw, IN). With a mean follow-up period of 42.8 ± 2.9 (range 41 to 47) months, the 3 adolescent patients in the present series were doing well with improved subtalar joint motion and decreased pain, and 1 foot showed no bony regrowth on a follow-up computed tomography scan. The use of a particulate juvenile hyaline cartilaginous allograft as interposition material after talocalcaneal middle facet coalition resection combined with adjunct procedures to address concomitant pes planovalgus resulted in good short-term outcomes in 4 feet in 3 adolescent patients. Copyright © 2015 American College of Foot and Ankle Surgeons. Published by Elsevier Inc. All rights reserved.

  7. Does Juvenile Detention Impact Health?

    PubMed

    Balogun, Titilola; Troisi, Catherine; Swartz, Michael D; Lloyd, Linda; Beyda, Rebecca

    2018-04-01

    Youth involved in the juvenile justice system represent a medically underserved population. Recidivist youth have poorer health outcomes compared to youth detained for the first time. This study determined differences in immunization history, substance use, mental health symptoms, and sexual behavior between recidivist youth and first-time detainees following improvements in intake screenings at a large, urban juvenile detention center in the Southeastern United States. Multivariable logistic regression analysis found that recidivist youth had significantly higher acellular pertussis immunization rates compared with first-time detainees (odds ratio [ OR] = 3.3; p = .02), and recidivist males were less likely to test positive for chlamydia ( OR = 0.6; p = .03) after controlling for age and Black race. There was no significant difference for most other outcomes between recidivist youth and first-time detainees after controlling for age.

  8. Treating the Juvenile Offender

    ERIC Educational Resources Information Center

    Hoge, Robert D., Ed.; Guerra, Nancy G., Ed.; Boxer, Paul, Ed.

    2008-01-01

    This authoritative, highly readable reference and text is grounded in the latest knowledge on how antisocial and criminal behavior develops in youth and how it can effectively be treated. Contributors describe proven ways to reduce juvenile delinquency by targeting specific risk factors and strengthening young people's personal, family, and…

  9. [Sex-linked juvenile retinoschisis].

    PubMed

    François, P; Turut, P; Soltysik, C; Hache, J C

    1976-02-01

    About 13 observations of sexe linked juvenile retinoschisis, the authors describe the ophthalmoscopic, fluorographic and functional aspects of the disease whose caracteristics are:--its sexe linked recessive heredity; --its clinical characterestics associating: a microcystic macular degeneration, peripheral retinal lesions, vitreous body alterations, --an electroretinogram of the negative type.

  10. Substance use and criminality among juveniles-under-enquiry in New Delhi

    PubMed Central

    Sharma, Shridhar; Sharma, Gautam; Barkataki, Bristi

    2016-01-01

    Background: There is an intimate relationship between drugs and criminal behavior. The drug–violence relationship is further complicated by intoxicating doses and/or withdrawal effects of specific drugs. Understanding this relationship is important for both healthcare workers and policy makers. Materials and Methods: The study was conducted in Prayas observation home for boys, a short stay home for juveniles-under-enquiry in New Delhi. The present study aims to correlate substance use and criminal behavior by investigating the sociodemographic characteristics and the current trend of substance use among juveniles in New Delhi. In this study, 487 detained juveniles aged between 8 and 18 years were included. The information was obtained by face-to-face semi-structured interviews and juvenile case records maintained by the juvenile home. Results: Out of 487 juveniles-under-enquiry booked under different crimes, 86.44% of the sample had a history of substance use. Consumption of tobacco and cannabis were higher when compared to other drugs. Consumption of psychotropic drugs though relatively lesser was related with more serious crimes. There is an increasing trend in serious crimes such as rape, murder/attempt to murder, and burglary committed by juveniles. Drug-crime correlation has been noted among consumption of cannabis with murder, inhalants with rape and opioids with snatching-related crimes. Conclusion: Substance use and criminal behavior are clearly interrelated. Greater the involvement in substance abuse, more severe is the violence and criminality. This paper highlights this complex relationship and suggests possible scope of interventions. PMID:27385851

  11. Correlates of Male and Female Juvenile Offender Abuse Experiences

    ERIC Educational Resources Information Center

    Dembo, Richard; Schmeidler, James; Childs, Kristina

    2007-01-01

    This paper reports the results of developing and evaluating a classification of 315 arrested youth processed at the Hillsborough County Juvenile Assessment Center from September 1, 1994 to January 31, 1998. Youth were characterized as physically or sexually abused if they reported abuse or if they had been referred to juvenile court for abuse.…

  12. The Content Validity of Juvenile Psychopathy: An Empirical Examination

    ERIC Educational Resources Information Center

    Lynam, Donald R.; Derefinko, Karen J.; Caspi, Avshalom; Loeber, Rolf; Stouthamer-Loeber, Magda

    2007-01-01

    This study examined the content validity of a juvenile psychopathy measure, the Childhood Psychopathy Scale (CPS; D. R. Lynam, 1997), based on a downward translation of an adult instrument, the Hare Psychopathy Checklist-Revised (PCL-R; R. D. Hare, 1991). The CPS was compared with two other indices of juvenile psychopathy: (a) an index derived…

  13. Dating Violence and Girls in the Juvenile Justice System

    ERIC Educational Resources Information Center

    Kelly, Patricia J.; Cheng, An-Lin; Peralez-Dieckmann, Esther; Martinez, Elisabeth

    2009-01-01

    The purpose of this study is to explore the prevalence and associated behaviors of dating violence among a population of girls in the juvenile justice system. A sample of 590 girls from an urban juvenile justice system completed a questionnaire assessing attitudes and self-efficacy about and occurrence of dating violence. The analysis developed a…

  14. Turbulence investigation and reproduction for assisting downstream migrating juvenile salmonids, Part II of II: Effects of induced turbulence on behavior of juvenile salmon, 2001-2005 final report

    USGS Publications Warehouse

    Perry, R.; Farley , M.; Hansen, G.; Morse , J.; Rondorf, D.

    2005-01-01

    Passage through dams is a major source of mortality of anadromous juvenile salmonids because some populations must negotiate up to eight dams in Columbia and Snake rivers. Dams cause direct mortality when fish pass through turbines, but dams may also cause indirect mortality by altering migration conditions in rivers. Forebays immediately upstream of dams have decreased the water velocity of rivers and may contribute substantially to the total migration delay of juvenile salmonids. Recently, Coutant (2001a) suggested that in addition to low water velocities, lack of natural turbulence may contribute to migration delay by causing fish to lose directional cues. Coutant (2001a) further hypothesized that restoring turbulence in dam forebays may reduce migration delay by providing directional cues that allow fish to find passage routes more quickly (Coutant 2001a). Although field experiments have yielded proof of the concept of using induced turbulence to guide fish to safe passage routes, little is known about mechanisms actually causing behavioral changes. To test hypotheses about how turbulence influences movement and behavior of migrating juvenile salmonids, we conducted two types of controlled experiments at Cowlitz Falls Dam, Washington. A common measure of migration delay is the elapsed time between arrival at, and passage through, a dam. Therefore, for the first set of experiments, we tested the effect of induced turbulence on the elapsed time needed for fish to traverse through a raceway and pass over a weir at its downstream end (time trial experiment). If turbulence helps guide fish to passage routes, then fish should pass through the raceway quicker in the presence of appropriately scaled and directed turbulent cues. Second, little is known about how the physical properties of water movement provide directional cues to migrating juvenile salmonids. To examine the feasibility of guiding fish with turbulence, we tested whether directed turbulence could guide

  15. Sevoflurane-induced down-regulation of hippocampal oxytocin and arginine vasopressin impairs juvenile social behavioral abilities.

    PubMed

    Zhou, Zhi-Bin; Yang, Xiao-Yu; Yuan, Bao-Long; Niu, Li-Jun; Zhou, Xue; Huang, Wen-Qi; Feng, Xia; Zhou, Li-Hua

    2015-05-01

    Cumulative evidence indicates that early childhood anesthesia can alter a child's future behavioral performance. Animal researchers have found that sevoflurane, the most commonly used anesthetic for children, can produce damage in the neonatal brains of rodents. To further investigate this phenomenon, we focused on the influence of sevoflurane anesthesia on the development of juvenile social behavioral abilities and the pro-social proteins oxytocin (OT) and arginine vasopressin (AVP) in the neonatal hippocampus. A single 6-h sevoflurane exposure for postnatal day 5 mice resulted in decreased OT and AVP messenger RNA (mRNA) and protein levels in the hippocampus. OT and AVP proteins became sparsely distributed in the dorsal hippocampus after the exposure to sevoflurane. Compared with the air-treated group, mice in the sevoflurane-treated group showed signs of impairment in social recognition memory formation and social discrimination ability. Sevoflurane anesthesia reduces OT and AVP activities in the neonatal hippocampus and impairs social recognition memory formation and social discrimination ability in juvenile mice.

  16. Recruitment in a sea anemone population: juvenile substrate becomes adult prey.

    PubMed

    Sebens, K P

    1981-08-14

    Populations of the sea anemone Anthopleura xanthogrammica (Brandt) occur in tide pools and surge channels below intertidal mussel beds where they capture mussels dislodged by wave action and by sea star foraging. Dense concentrations of small juvenile anemones occur only within mussel beds and are probably the result of larval settlement or differential survival in that habitat. Areas experimentally cleared of anemones showed that recruitment was primarily by migrating juveniles and that the rate of immigration over a 2-year period was much higher in experimental removal areas near mussel beds than in those further away. Mussel beds thus function as an important juvenile habitat (refuge and nursery); juveniles later migrate downward and are then in a position to capture dislodged mussels and grow to adult size.

  17. An assessment of secondary traumatic stress in juvenile justice education workers.

    PubMed

    Smith Hatcher, Schnavia; Bride, Brian E; Oh, Hyejung; Moultrie King, Dione; Franklin Catrett, James

    2011-07-01

    Given the frequency and violent character of the traumas encountered by juvenile offenders, staff members who regularly interact with juveniles in custody are at risk of developing secondary traumatic stress. Juvenile justice teachers and staff (N = 118) were administered a cross-sectional survey, including the Secondary Traumatic Stress Scale. Respondents said the students were moderately traumatized (47%), severely traumatized (27%), and very severely traumatized (7%). Regarding STS, the most frequently reported symptom was intrusive thoughts related to work with the students, mentioned by 61% of respondents. Additionally, 81% met at least one, 55% met two, and 39% met all three core diagnostic criteria for posttraumatic stress disorder. Recommendations for juvenile justice staff members and for the organization are provided to address practice and policy implications.

  18. An Assessment of Secondary Traumatic Stress in Juvenile Justice Education Workers

    PubMed Central

    Hatcher, Schnavia Smith; Bride, Brian E.; Oh, Hyejung; King, Dione Moultrie; Catrett, James “Jack” Franklin

    2013-01-01

    Given the frequency and violent character of the traumas encountered by juvenile offenders, staff members who regularly interact with juveniles in custody are at risk of developing secondary traumatic stress. Juvenile justice teachers and staff (N = 118) were administered a cross-sectional survey, including the Secondary Traumatic Stress Scale. Respondents said the students were moderately traumatized (47%), severely traumatized (27%), and very severely traumatized (7%). Regarding STS, the most frequently reported symptom was intrusive thoughts related to work with the students, mentioned by 61% of respondents. Additionally, 81% met at least one, 55% met two, and 39% met all three core diagnostic criteria for posttraumatic stress disorder. Recommendations for juvenile justice staff members and for the organization are provided to address practice and policy implications. PMID:21571748

  19. A mutation in the receptor Methoprene-tolerant alters juvenile hormone response in insects and crustaceans.

    PubMed

    Miyakawa, Hitoshi; Toyota, Kenji; Hirakawa, Ikumi; Ogino, Yukiko; Miyagawa, Shinichi; Oda, Shigeto; Tatarazako, Norihisa; Miura, Toru; Colbourne, John K; Iguchi, Taisen

    2013-01-01

    Juvenile hormone is an essential regulator of major developmental and life history events in arthropods. Most of the insects use juvenile hormone III as the innate juvenile hormone ligand. By contrast, crustaceans use methyl farnesoate. Despite this difference that is tied to their deep evolutionary divergence, the process of this ligand transition is unknown. Here we show that a single amino-acid substitution in the receptor Methoprene-tolerant has an important role during evolution of the arthropod juvenile hormone pathway. Microcrustacea Daphnia pulex and D. magna share a juvenile hormone signal transduction pathway with insects, involving Methoprene-tolerant and steroid receptor coactivator proteins that form a heterodimer in response to various juvenoids. Juvenile hormone-binding pockets of the orthologous genes differ by only two amino acids, yet a single substitution within Daphnia Met enhances the receptor's responsiveness to juvenile hormone III. These results indicate that this mutation within an ancestral insect lineage contributed to the evolution of a juvenile hormone III receptor system.

  20. Prevalence of psychiatric disorders in the Texas juvenile correctional system.

    PubMed

    Harzke, Amy Jo; Baillargeon, Jacques; Baillargeon, Gwen; Henry, Judith; Olvera, Rene L; Torrealday, Ohiana; Penn, Joseph V; Parikh, Rajendra

    2012-04-01

    Most studies assessing the burden of psychiatric disorders in juvenile correctional facilities have been based on small or male-only samples or have focused on a single disorder. Using electronic data routinely collected by the Texas juvenile correctional system and its contracted medical provider organization, we estimated the prevalence of selected psychiatric disorders among youths committed to Texas juvenile correctional facilities between January 1, 2004, and December 31, 2008 (N = 11,603). Ninety-eight percent were diagnosed with at least one of the disorders. Highest estimated prevalence was for conduct disorder (83.2%), followed by any substance use disorder (75.6%), any bipolar disorder (19.4%), attention-deficit/hyperactivity disorder (18.3%), and any depressive disorder (12.6%). The estimated prevalence of psychiatric disorders among these youths was exceptionally high and showed patterns by sex, race/ethnicity, and age that were both consistent and inconsistent with other juvenile justice samples.