Alien Registration- Lizotte, Leone M. (Fort Kent, Aroostook County)

https://digitalmaine.com/alien_docs/36299/thumbnail.jp

Twist Model Development and Results from the Active Aeroelastic Wing F/A-18 Aircraft

Understanding the wing twist of the active aeroelastic wing (AAW) F/A-18 aircraft is a fundamental research objective for the program and offers numerous benefits. In order to clearly understand the wing flexibility characteristics, a model was created to predict real-time wing twist. A reliable twist model allows the prediction of twist for flight simulation, provides insight into aircraft performance uncertainties, and assists with computational fluid dynamic and aeroelastic issues. The left wing of the aircraft was heavily instrumented during the first phase of the active aeroelastic wing program allowing deflection data collection. Traditional data processing steps were taken to reduce flight data, and twist predictions were made using linear regression techniques. The model predictions determined a consistent linear relationship between the measured twist and aircraft parameters, such as surface positions and aircraft state variables. Error in the original model was reduced in some cases by using a dynamic pressure-based assumption. This technique produced excellent predictions for flight between the standard test points and accounted for nonlinearities in the data. This report discusses data processing techniques and twist prediction validation, and provides illustrative and quantitative results

Implications of sea-ice biogeochemistry for oceanic production and emissions of dimethyl sulfide in the Arctic

Sea ice represents an additional oceanic source of the climatically active gas dimethyl sulfide (DMS) for the Arctic atmosphere. To what extent this source contributes to the dynamics of summertime Arctic clouds is, however, not known due to scarcity of field measurements. In this study, we developed a coupled sea ice–ocean ecosystem–sulfur cycle model to investigate the potential impact of bottom-ice DMS and its precursor dimethylsulfoniopropionate (DMSP) on the oceanic production and emissions of DMS in the Arctic. The results of the 1-D model simulation were compared with field data collected during May and June of 2010 in Resolute Passage. Our results reproduced the accumulation of DMS and DMSP in the bottom ice during the development of an ice algal bloom. The release of these sulfur species took place predominantly during the earlier phase of the melt period, resulting in an increase of DMS and DMSP in the underlying water column prior to the onset of an under-ice phytoplankton bloom. Production and removal rates of processes considered in the model are analyzed to identify the processes dominating the budgets of DMS and DMSP both in the bottom ice and the underlying water column. When openings in the ice were taken into account, the simulated sea–air DMS flux during the melt period was dominated by episodic spikes of up to 8.1 µmol m−2 d−1. Further model simulations were conducted to assess the effects of the incorporation of sea-ice biogeochemistry on DMS production and emissions, as well as the sensitivity of our results to changes of uncertain model parameters of the sea-ice sulfur cycle. The results highlight the importance of taking into account both the sea-ice sulfur cycle and ecosystem in the flux estimates of oceanic DMS near the ice margins and identify key uncertainties in processes and rates that should be better constrained by new observations

Young adults’ viewpoints concerning helpful factors when living in an intimate partner violence context

This qualitative study examined factors which were considered to be helpful by young adults who were exposed to intimate partner violence (IPV) during their childhood and adolescence. Life course theory was chosen for the analysis framework because it allowed us to look at the factors found in such diverse trajectories as family, friendship, romantic relationships, school, and work. The sample was comprised of 45 young Qu´ebec adults from 18 to 25 years old who were exposed to IPV. The participants began by filling out an online questionnaire documenting their victimization experiences (the Adult Retrospective Version of the Juvenile Victimization Questionnaire). They then participated in a semi-structured interview based on their own life history calendar. The results indicated five main types of helpful factors: 1) emotional support, 2) material help, 3) professional help, 4) distancing strategies, and 5) opportunities to experience success and discover one’s strengths and abilities. Certain factors were noted in most of the above-mentioned trajectories, whereas others were specific to one or a few trajectories. In conclusion, the need to conduct further research on protective factors is emphasized, with the goal being to improve interventions with young people exposed to IPV and with those close to them, and to positively influence their life courses

Bird consumption of sweet and tart cherries

Identifying species responsible for crop damage is an important first step in developing management strategies. Previous studies have surveyed bird species flying through cherry orchards but have not documented which species were consuming cherries. We conducted traditional surveys and behavioral observations in orchards of sweet cherries (Prunus avium) and tart cherries (Prunus cerasus) in Michigan during 2010 to compare results from the 2 techniques. American robins (Turdus migratorius) were detected most frequently during sweet cherry surveys, while behavioral observations showed that cedar waxwings (Bombycilla cedrorum) consumed more sweet cherries than did robins. Chipping sparrows (Spizella passerina) were the most commonly detected species during tart cherry surveys, while observations showed that American robins and common grackles (Quiscalus quiscula) consumed the most tart cherries. Although observational work is more labor-intensive than surveys, observations are more likely to provide accurate information on the relative importance of fruit-consuming species

Exposure to intimate partner violence : perceived links with other victimizations and the severity of violence by young adults in Québec

The objective of this qualitative study was to understand how young adults (18 - 25 years old) who were exposed to intimate partner violence (IPV) during childhood and adolescence explained the links between this violence and the other victimizations that they had experienced, as well as the perceived severity that they assigned to these victimizations. The participants (N = 45) were recruited in the Province of Quebec (Canada). Before the interview, they filled out an online questionnaire with the Adult Retrospective Version of the Juvenile Victimization Questionnaire as well as answering sociodemographic questions. They likewise noted the victimization to which they were subjected before they reached adulthood. These data helped us to better prepare the qualitative interviews, allowing us to explore the links the youth see or do not see between their exposure to IPV and other declared victimizations. Interviews lasted an average of two hours and were supported by a semi-structured interview guide and a life history calendar. The results show that many of the participants identified stronger links between exposure to IPV and child maltreatment, intimidation at school, and dating violence. Findings highlight the importance of considering youth’s viewpoints about the victimizations they suffer so as to develop intervention and prevention programs that are better adapted to these youth’s experiences and point of views

Promoting Political Empowerment: Evaluation of an Intervention with University Students

The aim of this research is to examine the effects of an intervention, focusing on the development of political empowerment, with university students. Undergraduates were randomly assigned to one of two conditions (intervention/control) and were surveyed at two time points: before implementation of the intervention and upon completion of the intervention (or the equivalent two semester period). ANCOVA analyses reveal that individuals who participated in the empowering intervention had increased feelings of political commitment and a decreased sense of political efficacy compared to individuals who were randomly assigned to a waiting list/control group. Finally, limitations of this study are discussed and suggestions for future research are presented.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/44063/1/10464_2004_Article_379794.pd

Seasonal dynamics of dissolved organic matter in the Mackenzie Delta, Canadian Arctic waters

Increasing air temperatures and associated permafrost thaw in Arctic river watersheds, such as the Mackenzie River catchment, are directly affecting the aquatic environment. As a consequence, the quantity and the quality of dissolved organic carbon (DOC) that is transported via the Mackenzie River into the Arctic Ocean is expected to change. Particularly in these remote permafrost regions of the Arctic, monitoring of terrigenous organic carbon fluxes is insufficient and knowledge of distribution and fate of organic carbon when released to the coastal waters is remarkably lacking. Despite its poorly evaluated performance in Arctic coastal waters, Satellite Ocean Colour Remote Sensing (SOCRS) remains a powerful tool to complement monitoring of land-ocean DOC fluxes, detect their trends, and help in understanding their propagation in the Arctic Ocean. In this study, we use in situ and SOCRS data to show the strong seasonal dynamics of the Mackenzie River plume and the spatial distribution of associated terrigenous DOC on the Beaufort Sea Shelf for the first time. Using a dataset collected during an extensive field campaign in 2019, the performance of three commonly-used atmospheric correction (AC) algorithms and two available colored dissolved organic matter (CDOM) retrieval algorithms were evaluated using the Ocean and Land Colour Instrument (OLCI). Our results showed that in optically-complex Arctic coastal waters the Polymer AC algorithm performed the best. For the retrieval of CDOM, the gsmA algorithm (Mean Percentage Error (MPE) = 35.7%) showed slightly more consistent results compared to the ONNS algorithm (MPE = 37.9%). By merging our measurements with published datasets, the newly-established DOC-CDOM relationship for the Mackenzie-Beaufort Sea region allowed estimations of DOC concentrations from SOCRS across the entire fluvial-marine transition zone with an MPE of 20.5%. Finally, we applied SOCRS with data from the Sentinel-3 OLCI sensor to illustrate the seasonal variation of DOC concentrations in the surface waters of the Beaufort Sea on a large spatial scales and high frequency throughout the entire open water period. Highest DOC concentrations and largest lateral extent of the plume were observed in spring right after the Mackenzie River ice break-up indicating that the freshet was the main driver of plume propagation and DOC distribution on the shelf. Satellite-derived images of surface water DOC concentration placed the in situ observations into a larger temporal and spatial context and revealed a strong seasonal variability in transport pathways of DOC in the Mackenzie- Beaufort Sea region

Mieux répondre aux besoins complexes des familles confrontées à la cooccurrence de violence conjugale et d’un problème de santé mentale ou de consommation

Cette recherche qualitative explore les points de vue de mères, de pères et d’adolescents (n = 43) quant aux services reçus pour les problèmes cooccurrents de violence conjugale, de santé mentale et de consommation chez les parents. Les données ont été recueillies par des entrevues semi-dirigées, soutenues d’un outil de cartographie des services utilisés. L’analyse de contenu thématique montre que les participants déploient plusieurs stratégies pour faire face aux problèmes cooccurrents vécus et utilisent diverses ressources d’aide formelle et informelle. Plusieurs recommandations sont proposées pour améliorer l’offre d’aide aux familles en situation de cooccurrence, dont la concertation entre les différentes ressources concernées.This qualitative research explores the point of views of mothers, fathers, and teenagers (n = 43) about the services they received for co-occurring problems of intimate partner violence, mental health, and parental substance use. The data were collected through semi-structured interviews, supported by a mapping tool of the services they used. The thematic content analysis shows that participants deploy several strategies to address co-occurring problems and use various formal and informal support resources. Several recommendations are proposed to improve the offer of assistance to families in situations of co-occurrence, including concertation between the different concerned resources

L’influence perçue de l’exposition à la violence conjugale sur les relations significatives des jeunes concernés : une perspective temporelle

Cadre de la recherche : Cet article porte sur l’évolution des relations avec les personnes significatives pour les jeunes adultes ayant été exposés à de la violence conjugale pendant leur enfance ou leur adolescence. Objectifs : Cette recherche vise à identifier les personnes ayant eu une influence importante dans le parcours de vie des jeunes concernés, à examiner comment les relations avec ces personnes significatives ont évolué à travers le temps et dans quelle mesure l’exposition à la violence conjugale a influencé ces relations. Méthodologie : Il s’agit d’une recherche qualitative fondée sur la théorie des parcours de vie. Nous avons réalisé des entrevues semi-structurées, soutenues par l’outil du calendrier historique de vie, auprès de 45 jeunes de 18 à 25 ans. Résultats : L’exposition à la violence conjugale affecte de façon plus importante les relations avec les parents, bien que de façon différente avec le parent qui exerce la violence qu’avec celui qui la subit. Les relations avec les autres personnes significatives (amis, fratrie, famille élargie, autres) tendent à être plus stables dans le temps, sont généralement aidantes et fluctuent moins en fonction de l’exposition à la violence conjugale que les relations parent(s)-enfant(s). Les relations amoureuses, quant à elles, impliquent parfois une revictimisation, mais sont aussi des occasions de reconstruire des relations plus saines et égalitaires. Conclusions : Cette recherche contribue au développement des connaissances sur les relations significatives pour les jeunes ayant été exposés à de la violence conjugale. La perspective d’analyse temporelle que nous avons privilégiée permet de souligner les angles morts des recherches réalisées à ce jour et de proposer des pistes de recherche futures. Contribution : Cette recherche suggère des pistes d’amélioration de l’aide offerte aux jeunes concernés et à leurs proches, en mobilisant davantage les relations qu’ils identifient comme significatives dans leurs différentes trajectoires de vie – familiale, amicale, amoureuse, scolaire et professionnelle.Research Framework: This article examines the evolution of relationships identified as significant by young adults who were exposed to intimate partner violence in childhood or adolescence. Objectives: The study attempted to identify the people who had an important influence on the young people’s life course, to examine how the relationships with these significant people evolved, and to determine the extent to which exposure to intimate partner violence influenced these relationships. Methodology: This is a qualitative study based on life course theory. Semi-structured interviews, accompanied by a life-course calendar, were conducted with 45 persons from 18 to 25 years old. Results: Exposure to intimate partner violence had a greater impact on the relationships with the parents, although in different ways which depended on whether it was the parent who perpetrated or who was subjected to the violence. The relationships with other significant people (friends, siblings, extended family, etc.) tended to be more stable over time and were generally supportive and fluctuated less in the presence of intimate partner violence. Dating relationships sometimes led to a revictimization but also represented occasions to rebuild healthier and more equal relationships. Conclusions: This study contributes to our understanding of the significant relationships of young people who have been exposed to intimate partner violence. The temporal analysis perspective adopted here helped to identify some of the shortcomings in previous studies and to propose avenues for future research. Contribution: This study suggests certain actions to improve aid provided for youths and those close to them. The aim is to take advantage of the relationships that they consider significant in their various life trajectories, namely family, friends, intimate partner, school, and work