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  • 11
    Online Resource
    Online Resource
    Desert pastoralists’ negative and positive effects on rare wildlife in the Gobi
    Wiley ; 2017
    In:  Conservation Biology Vol. 31, No. 2 ( 2017-04), p. 269-277
    Details
    In: Conservation Biology, Wiley, Vol. 31, No. 2 ( 2017-04), p. 269-277
    Abstract: Efectos Negativos y Positivos del Pastoreo de Ganado sobre la Fauna Silvestre Poco Común en el Desierto del Gobi Resumen En las regiones áridas de los países en desarrollo, los pastores y el ganado comúnmente habitan áreas protegidas, lo que resulta en conflictos entre humanos y la vida silvestre. El conflicto está conectado inextricablemente con los procesos ecológicos que forman las relaciones entre el pastoreo del ganado y los herbívoros nativos y los carnívoros. Para elucidar las relaciones que apoyan el conflicto humano‐vida silvestre sintetizamos 15 años de datos ecológicos y etnográficos de la Reserva Natural Ikh Nart en la estepa del Gobi de Mongolia. La densidad de argali ( Ovis ammon ), la oveja salvaje más grande del mundo, en Ikh Nart estuvo entre las más altas en Mongolia, mientras que el ganado fue 〉 90 % de la biomasa de ungulados y los perros 〉 90 % de la biomasa de carnívoros grandes. Para los argalis, el pastoreo del ganado redujo la disponibilidad de alimento, incrementó la mortalidad por depredación de perros y potencialmente incrementó el riesgo de enfermedad. Los análisis de isótopos indicaron que el ganado representó 〉 50 % de la dieta de la mayoría de lobos grises ( Canis lupus ) y hasta 90 % del 25 % de los lobos muestreados ( n = 8). El ganado constituyó al menos 96 % de las presas unguladas en la única manada de lobos de la cual recolectamos datos de presas específicas. Las entrevistas con los pastores indicaron que los lobos mataban anualmente 1–4 % del ganado de Ikh Nart y los pastores mataban a los lobos en retribución. Los pastores redujeron la supervivencia de los lobos matándolos, pero su ganado fue una fuente abundante de alimento para los lobos. En consecuencia, la densidad de lobos pareció estar separada de la densidad de argalis, y los pastores tuvieron efectos indirectos sobre los argali que podrían ser negativos si los pastores incrementan la densidad de lobos (competencia aparente), o positivos si los pastores disminuyen la depredación por lobos (facilitación aparente). La población de argalis de Ikh Nart estuvo estable a pesar de estas amenazas, pero el ganado es cada vez más dominante numéricamente y relativo funcionalmente a los argalis. Para respaldar tanto a la vida silvestre nativa como a la subsistencia de los pastores, sugerimos entrenar a los perros para que no maten a los argalis, un seguro comunitario para la pérdida de ganado por lobos, reintroducir especies clave nativas y depredadoras a los puntos calientes del conflicto humano‐lobos, y desarrollar incentivos para que los pastores reduzcan la densidad del ganado.
    Type of Medium: Online Resource
    ISSN: 0888-8892 , 1523-1739
    URL: Issue
    URL: Article
    DOI: 10.1111/cobi.2017.31.issue-2
    DOI: 10.1111/cobi.12881
    Language: English
    Publisher: Wiley
    Publication Date: 2017
    detail.hit.zdb_id: 2020041-9
    SSG: 12
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  • 12
    Online Resource
    Online Resource
    Nonlinear Optical Switching in Regioregular Porphyrin Covalent Organic Frameworks
    Wiley ; 2019
    In:  Angewandte Chemie Vol. 131, No. 21 ( 2019-05-20), p. 6970-6974
    Details
    In: Angewandte Chemie, Wiley, Vol. 131, No. 21 ( 2019-05-20), p. 6970-6974
    Abstract: Covalent organic frameworks (COFs) have garnered immense scientific interest among porous materials because of their structural tunability and diverse properties. However, the response of such materials toward laser‐induced nonlinear optical (NLO) applications is hardly understood and demands prompt attention. Three novel regioregular porphyrin (Por)‐based porous COFs—Por‐COF‐HH and its dual metalated congeners Por‐COF‐ZnCu and Por‐COF‐ZnNi—have been prepared and present excellent NLO properties. Notably, intensity‐dependent NLO switching behavior was observed for these Por‐COFs, which is highly desirable for optical switching and optical limiting devices. Moreover, the efficient π‐conjugation and charge‐transfer transition in ZnCu‐Por‐COF enabled a high nonlinear absorption coefficient ( β =4470 cm/GW) and figure of merit (FOM=σ 1 /σ o , 3565) value compared to other state‐of‐the‐art materials, including molecular porphyrins ( β ≈100–400 cm/GW), metal–organic frameworks (MOFs; β ≈0.3–0.5 cm/GW), and graphene ( β =900 cm/GW).
    Type of Medium: Online Resource
    ISSN: 0044-8249 , 1521-3757
    URL: Issue
    URL: Article
    DOI: 10.1002/ange.v131.21
    DOI: 10.1002/ange.201814412
    RVK:
    VA 2100
    RVK:
    VN 5020
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 505868-5
    detail.hit.zdb_id: 506609-8
    detail.hit.zdb_id: 514305-6
    detail.hit.zdb_id: 505872-7
    detail.hit.zdb_id: 1479266-7
    detail.hit.zdb_id: 505867-3
    detail.hit.zdb_id: 506259-7
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  • 13
    Online Resource
    Online Resource
    Regulatory focus climate, organizational structure, and employee ambidexterity: An interactive multilevel model
    Wiley ; 2023
    In:  Human Resource Management Vol. 62, No. 5 ( 2023-09), p. 701-719
    Details
    In: Human Resource Management, Wiley, Vol. 62, No. 5 ( 2023-09), p. 701-719
    Abstract: Prior research suggests that the organizational context supports the emergence of employee ambidexterity; however, the interplay between formal and informal context has been largely unexplored. We analyze this interplay with a multilevel, multisource data set of 2446 individual employees nested in 77 organizations. We find that a promotion climate—unlike a prevention climate—contributes to employee ambidexterity. In addition, formalization positively moderates the effects of both promotion and prevention climate on employee ambidexterity, while centralization weakens the positive effect of promotion climate. Our results advance a contingency perspective that brings together formal and informal contextual drivers of employee ambidexterity and shows that even though an informal climate signals the preferred manner of goal pursuit, a formal structure affects the impact of such signals by delineating opportunity corridors of admissible behaviors.
    Type of Medium: Online Resource
    ISSN: 0090-4848 , 1099-050X
    URL: Issue
    URL: Article
    DOI: 10.1002/hrm.v62.5
    DOI: 10.1002/hrm.22155
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2004293-0
    SSG: 3,2
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  • 14
    Online Resource
    Online Resource
    Nonlinear Optical Switching in Regioregular Porphyrin Covalent Organic Frameworks
    Wiley ; 2019
    In:  Angewandte Chemie International Edition Vol. 58, No. 21 ( 2019-05-20), p. 6896-6900
    Details
    In: Angewandte Chemie International Edition, Wiley, Vol. 58, No. 21 ( 2019-05-20), p. 6896-6900
    Abstract: Covalent organic frameworks (COFs) have garnered immense scientific interest among porous materials because of their structural tunability and diverse properties. However, the response of such materials toward laser‐induced nonlinear optical (NLO) applications is hardly understood and demands prompt attention. Three novel regioregular porphyrin (Por)‐based porous COFs—Por‐COF‐HH and its dual metalated congeners Por‐COF‐ZnCu and Por‐COF‐ZnNi—have been prepared and present excellent NLO properties. Notably, intensity‐dependent NLO switching behavior was observed for these Por‐COFs, which is highly desirable for optical switching and optical limiting devices. Moreover, the efficient π‐conjugation and charge‐transfer transition in ZnCu‐Por‐COF enabled a high nonlinear absorption coefficient ( β =4470 cm/GW) and figure of merit (FOM=σ 1 /σ o , 3565) value compared to other state‐of‐the‐art materials, including molecular porphyrins ( β ≈100–400 cm/GW), metal–organic frameworks (MOFs; β ≈0.3–0.5 cm/GW), and graphene ( β =900 cm/GW).
    Type of Medium: Online Resource
    ISSN: 1433-7851 , 1521-3773
    URL: Issue
    URL: Article
    DOI: 10.1002/anie.v58.21
    DOI: 10.1002/anie.201814412
    RVK:
    VA 2100
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 2011836-3
    detail.hit.zdb_id: 123227-7
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