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  1. Article ; Online: “That’s What the Program is All about… Building Relationships”

    Leah J. Ferguson / Tammy Girolami / Reed Thorstad / Carol D. Rodgers / M. Louise Humbert

    International Journal of Environmental Research and Public Health, Vol 18, Iss 733, p

    Exploring Experiences in an Urban Offering of the Indigenous Youth Mentorship Program in Canada

    2021  Volume 733

    Abstract: Peer mentorship is an effective approach for delivering health promotion programs that may be particularly useful among underrepresented populations. Advancing the peer-led approach, the Indigenous Youth Mentorship Program (IYMP) is a communal-led ... ...

    Abstract : Peer mentorship is an effective approach for delivering health promotion programs that may be particularly useful among underrepresented populations. Advancing the peer-led approach, the Indigenous Youth Mentorship Program (IYMP) is a communal-led program rooted in Indigenous values aimed at the promotion of healthy lifestyles in children and youth. The program includes layers of multi-age mentoring (i.e., elementary students, high school student mentors, and young adult health leaders [YAHLs]) and incorporates three core components: physical activity, healthy eating, and cultural teachings. The purpose of this study was to qualitatively explore elementary student, mentor, and YAHL experiences in an urban IYMP offering. Eleven sharing circles were conducted; six with elementary students (n = 23; grade 4 and 5 students), two with mentors (n = 3; students enrolled in a grade 10 wellness girls class), and three with YAHLs (n = 6; undergraduate university students). Focus groups were also held with respective school teachers and principals. An inductive content analysis generated three themes that represent the perceived impacts of this urban IYMP offering: (1) Fostering Wellness, (2) Strengthening Meaningful Connections, and (3) Exploring Leadership. Findings are positioned within a communal mentorship framework that is circular and multi-directional. By bringing together Indigenous and non-Indigenous peoples, this program offering supports Indigenous cultural relevance in an urban-based wellness program.
    Keywords mentorship ; Indigenous ; school-based ; communal-led ; wellness ; urban ; Medicine ; R
    Subject code 796
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Elastic deformation plays a non-negligible role in Greenland’s outlet glacier flow

    Julia Christmann / Veit Helm / Shfaqat Abbas Khan / Thomas Kleiner / Ralf Müller / Mathieu Morlighem / Niklas Neckel / Martin Rückamp / Daniel Steinhage / Ole Zeising / Angelika Humbert

    Communications Earth & Environment, Vol 2, Iss 1, Pp 1-

    2021  Volume 12

    Abstract: Ice flow dynamics in Greenland’s outlet glaciers are influenced by elastic deformation ...

    Abstract Ice flow dynamics in Greenland’s outlet glaciers are influenced by elastic deformation, both in the area of tidal influence up to 14 km inland from the grounding line and further upstream, suggest analyses of GPS observations and numerical simulations.
    Keywords Geology ; QE1-996.5 ; Environmental sciences ; GE1-350
    Language English
    Publishing date 2021-11-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: Dark Glacier Surface of Greenland’s Largest Floating Tongue Governed by High Local Deposition of Dust

    Humbert, Angelika / Schröder, Ludwig / Schultz, Timm / Müller, Ralf / Neckel, Niklas / Helm, Veit / Zindler, Robin / Eleftheriadis, Konstantinos / Salzano, Roberto / Salvatori, Rosamaria

    Remote Sensing. 2020 Nov. 19, v. 12, no. 22

    2020  

    Abstract: ... to govern albedo in Greenland’s ablation zone. Here we combine optical (MODIS/Sentinel-2) and radar ...

    Abstract Surface melt, driven by atmospheric temperatures and albedo, is a strong contribution of mass loss of the Greenland Ice Sheet. In the past, black carbon, algae and other light-absorbing impurities were suggested to govern albedo in Greenland’s ablation zone. Here we combine optical (MODIS/Sentinel-2) and radar (Sentinel-1) remote sensing data with airborne radar and laser scanner data, and engage firn modelling to identify the governing factors leading to dark glacier surfaces in Northeast Greenland. After the drainage of supraglacial lakes, the former lake ground is a clean surface represented by a high reflectance in Sentinel-2 data and aerial photography. These bright spots move with the ice flow and darken by more than 20% over only two years. In contrast, sites further inland do not exhibit this effect. This finding suggests that local deposition of dust, rather than black carbon or cryoconite formation, is the governing factor of albedo of fast-moving outlet glaciers. This is in agreement with a previous field study in the area which finds the mineralogical composition and grain size of the dust comparable with that of the surrounding soils.
    Keywords aerial photography ; air temperature ; algae ; area ; drainage ; dust ; flow ; glaciers ; ice ; lakes ; mass ; models ; radar ; reflectance ; remote sensing ; scanners ; soil ; spatial data ; surfaces ; tongue ; Greenland
    Language English
    Dates of publication 2020-1119
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    Note NAL-light
    ZDB-ID 2513863-7
    ISSN 2072-4292
    ISSN 2072-4292
    DOI 10.3390/rs12223793
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Dark Glacier Surface of Greenland’s Largest Floating Tongue Governed by High Local Deposition of Dust

    Angelika Humbert / Ludwig Schröder / Timm Schultz / Ralf Müller / Niklas Neckel / Veit Helm / Robin Zindler / Konstantinos Eleftheriadis / Roberto Salzano / Rosamaria Salvatori

    Remote Sensing, Vol 12, Iss 3793, p

    2020  Volume 3793

    Abstract: ... to govern albedo in Greenland’s ablation zone. Here we combine optical (MODIS/Sentinel-2) and radar ...

    Abstract Surface melt, driven by atmospheric temperatures and albedo, is a strong contribution of mass loss of the Greenland Ice Sheet. In the past, black carbon, algae and other light-absorbing impurities were suggested to govern albedo in Greenland’s ablation zone. Here we combine optical (MODIS/Sentinel-2) and radar (Sentinel-1) remote sensing data with airborne radar and laser scanner data, and engage firn modelling to identify the governing factors leading to dark glacier surfaces in Northeast Greenland. After the drainage of supraglacial lakes, the former lake ground is a clean surface represented by a high reflectance in Sentinel-2 data and aerial photography. These bright spots move with the ice flow and darken by more than 20% over only two years. In contrast, sites further inland do not exhibit this effect. This finding suggests that local deposition of dust, rather than black carbon or cryoconite formation, is the governing factor of albedo of fast-moving outlet glaciers. This is in agreement with a previous field study in the area which finds the mineralogical composition and grain size of the dust comparable with that of the surrounding soils.
    Keywords glacier melt ; albedo ; Greenland ice sheet ; remote sensing ; Science ; Q
    Subject code 550
    Language English
    Publishing date 2020-11-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Walking for Transportation: What do U.S. Adults Think is a Reasonable Distance and Time?

    Watson, Kathleen B / Carlson, Susan A / Humbert-Rico, Tiffany / Carroll, Dianna D / Fulton, Janet E

    Journal of physical activity & health

    2015  Volume 12 Suppl 1, Page(s) S53–61

    Abstract: Background: Less than one-third of U.S. adults walk for transportation. Public health strategies ... are reasonable walk more.: Conclusions: Walking for short distances is acceptable to most U.S ... for transportation walking to make walking longer distances seem easier and more acceptable to most U.S. adults. ...

    Abstract Background: Less than one-third of U.S. adults walk for transportation. Public health strategies to increase transportation walking would benefit from knowing what adults think is a reasonable distance to walk. Our purpose was to determine 1) what adults think is a reasonable distance and amount of time to walk and 2) whether there were differences in minutes spent transportation walking by what adults think is reasonable.
    Methods: Analyses used a cross-sectional nationwide adult sample (n = 3653) participating in the 2010 Summer ConsumerStyles mail survey.
    Results: Most adults (> 90%) think transportation walking is reasonable. However, less than half (43%) think walking a mile or more or for 20 minutes or more is reasonable. What adults think is reasonable is similar across most demographic subgroups, except for older adults (≥ 65 years) who think shorter distances and times are reasonable. Trend analysis that adjust for demographic characteristics indicates adults who think longer distances and times are reasonable walk more.
    Conclusions: Walking for short distances is acceptable to most U.S. adults. Public health programs designed to encourage longer distance trips may wish to improve supports for transportation walking to make walking longer distances seem easier and more acceptable to most U.S. adults.
    MeSH term(s) Adult ; Aged ; Cross-Sectional Studies ; Distance Perception ; Female ; Humans ; Male ; Middle Aged ; Public Health ; Surveys and Questionnaires ; Thinking ; Time Perception ; Transportation/statistics & numerical data ; United States ; Walking/psychology ; Walking/statistics & numerical data ; Young Adult
    Language English
    Publishing date 2015-06-16
    Publishing country United States
    Document type Journal Article
    ISSN 1543-5474
    ISSN (online) 1543-5474
    DOI 10.1123/jpah.2014-0062
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: A developmental component to Huntington's disease.

    Ratié, L / Humbert, S

    Revue neurologique

    2024  

    Abstract: Huntington's disease is a dominantly inherited disorder characterized by the dysfunction and death of cortical and striatal neurons. Striatal degeneration in Huntington's disease is due, at least in part, to defective cortical signalling to the striatum. ...

    Abstract Huntington's disease is a dominantly inherited disorder characterized by the dysfunction and death of cortical and striatal neurons. Striatal degeneration in Huntington's disease is due, at least in part, to defective cortical signalling to the striatum. Although Huntington's disease generally manifests at the adult stage, mouse and neuroimaging studies of presymptomatic mutation carriers suggest that it may affect neurodevelopment. In support of this notion, the development of the cortex is altered in mice with Huntington's disease and the foetuses of human Huntington's disease gene carriers. We will discuss these studies and the contribution of abnormal brain development to the later appearance of the disease.
    Language English
    Publishing date 2024-04-12
    Publishing country France
    Document type Journal Article ; Review
    ZDB-ID 4593-7
    ISSN 2213-0004 ; 0035-3787
    ISSN (online) 2213-0004
    ISSN 0035-3787
    DOI 10.1016/j.neurol.2024.04.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Clinical challenges in pulmonary hypertension: Roger S. Mitchell lecture.

    Provencher, Steeve / Jais, Xavier / Yaici, Azzedine / Sitbon, Olivier / Humbert, Marc / Simonneau, Gérald

    Chest

    2005  Volume 128, Issue 6 Suppl, Page(s) 622S–628S

    Abstract: Despite major advances in our understanding of the pathophysiologic processes leading to pulmonary arterial hypertension and recent developments in therapeutic approaches, the long-term prognosis for patients with pulmonary arterial hypertension remains ... ...

    Abstract Despite major advances in our understanding of the pathophysiologic processes leading to pulmonary arterial hypertension and recent developments in therapeutic approaches, the long-term prognosis for patients with pulmonary arterial hypertension remains unsatisfactory. Early detection and adequate clinical classification of the disease, better assessment of patients' prognosis, and improved therapeutic strategies are important challenges for clinicians in coming years.
    MeSH term(s) Humans ; Hypertension, Pulmonary/classification ; Hypertension, Pulmonary/diagnosis ; Hypertension, Pulmonary/drug therapy
    Language English
    Publishing date 2005-12
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 1032552-9
    ISSN 1931-3543 ; 0012-3692
    ISSN (online) 1931-3543
    ISSN 0012-3692
    DOI 10.1378/chest.128.6_suppl.622S-a
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Mechanical Characterisation of Bond Formation during Overprinting of PEEK Laminates.

    Hümbert, Simon / Atzler, Fynn / Voggenreiter, Heinz

    Materials (Basel, Switzerland)

    2023  Volume 17, Issue 1

    Abstract: The latest generation of high-temperature 3D printers enables the production of complex structural components from aerospace-grade thermoplastics such as PEEK (polyether ether ketone). However, adding long or continuous fibres is currently limited, and ... ...

    Abstract The latest generation of high-temperature 3D printers enables the production of complex structural components from aerospace-grade thermoplastics such as PEEK (polyether ether ketone). However, adding long or continuous fibres is currently limited, and thermal stresses introduced during the process restrict the maximum part dimensions. Combining 3D-printed components with continuous fibre-reinforced components into one hybrid structure has the potential to overcome such limitations. This work aims to determine whether in situ bonding between PEEK laminates and PEEK 3D printing during overprinting is feasible and which process parameters are significantly responsible for the bonding quality. To this end, the bonding is analysed experimentally in two steps. Firstly, the influence of the process parameters on the thermal history and the strength of the bond is investigated. In the second step, a detailed investigation of the most critical parameters is carried out. The investigation showed the feasibility of overprinting with bonding strengths of up to 15 MPa. It was shown that the bonding strength depends primarily on the temperature in the interface. Additionally, the critical parameters to control the process were identified. The process influences that were displayed form the basis for future hybrid component and process designs.
    Language English
    Publishing date 2023-12-28
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma17010161
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Book ; Conference proceedings: Proceedings of the 4th World Symposium on Pulmonary Hypertension

    Humbert, Marc

    [11 - 14, 2008 at Dana Point, California]

    (Journal of the American College of Cardiology ; 54,1, Suppl. S)

    2009  

    Event/congress World Symposium on Pulmonary Hypertension (4., 2008, DanaPointCalif.)
    Author's details guest ed.: Marc Humbert
    Series title Journal of the American College of Cardiology ; 54,1, Suppl. S
    Collection
    Language English
    Size S117 S. : Ill.
    Publisher Elsevier
    Publishing place New York, NY
    Publishing country United States
    Document type Book ; Conference proceedings
    HBZ-ID HT016007434
    Database Catalogue ZB MED Medicine, Health

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  10. Article ; Online: A polyaromatic terdentate binding unit with fused 5,6-membered chelates for complexing s-, p-, d-, and f-block cations.

    Hoang, Thi Nhu Y / Humbert-Droz, Marie / Dutronc, Thibault / Guénée, Laure / Besnard, Céline / Piguet, Claude

    Inorganic chemistry

    2013  Volume 52, Issue 9, Page(s) 5570–5580

    Abstract: The polyaromatic terdentate ligand 6-(azaindol-1-yl)-2,2′-bipyridine (L7) combines one 5-membered chelate ring with a fused 6-membered chelate ring. It is designed to provide complexation properties intermediate between 2,2′;6′,2″-terpyridine (L1) (two ... ...

    Abstract The polyaromatic terdentate ligand 6-(azaindol-1-yl)-2,2′-bipyridine (L7) combines one 5-membered chelate ring with a fused 6-membered chelate ring. It is designed to provide complexation properties intermediate between 2,2′;6′,2″-terpyridine (L1) (two fused 5-membered chelate rings) and 2,6-bis(azaindol-1-yl)pyridine (L6) (two fused 6-membered chelate rings). In polar organic solvents, L7 displays remarkable affinities for the successive fixation of two small univalent cations M = H+ or Li+, leading to stable [M(m)(L7)]m+ (m = 1–2) complexes. Upon reaction with M = Mg2+ or Zn2+ cations, the large positive charge densities borne by the metals result in the successive cooperative complexation of two ligands to give [M(L7)n]n+ (n = 1–2). For small Sc3+, unavoidable traces of water favor the formation of the protonated ligand at millimolar concentrations in acetonitrile, but the use of larger Y3+ cations leads to [Y(L7)n]n+ (n = 1, 2), for which stability constants of log(β(1,1)(Y,L7)) = 2.9(5) and log(β(1,2)(Y,L7)) = 5.3(4) are estimated. The complexation behaviors are supported by speciations in solution, thermodynamic analyses, and solution and solid-state structures.
    Language English
    Publishing date 2013-05-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/ic400526j
    Database MEDical Literature Analysis and Retrieval System OnLINE

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