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1.
J Clin Transl Sci ; 5(1): e23, 2020 Jul 24.
Artigo em Inglês | MEDLINE | ID: mdl-33948246

RESUMO

BACKGROUND: The University of Wisconsin Institute for Clinical and Translational Research hub supports multiple pilot award programs that engage cross-disciplinary Translational Teams. To support those teams, our Team Science group aims to offer a learning experience that is accessible, active, and actionable. We identified Collaboration Planning as a high-impact intervention to stimulate team-building activities that provide Translational Team members with the skills to lead and participate in high-impact teams. METHODS: We adapted the published materials on Collaboration Planning to develop a 90-minute facilitated intervention with questions in 10 areas, presuming no previous knowledge of Science of Team Science (SciTS) or team-science best practices. Attendees received a short follow-up survey and submitted a written collaboration plan with their first quarterly progress report. RESULTS: Thirty-nine participants from 13 pilot teams from a wide range of disciplines engaged in these sessions. We found that teams struggled to know who to invite, that some of our questions were confusing and too grounded in the language of SciTS, and groups lacked plans for managing their information and communications. We identified several areas for improvement including ensuring that the process is flexible to meet the needs of different teams, continuing to evolve the questions so they resonate with teams, and the need to provide resources for areas where teams needed additional guidance, including information and data management, authorship policies, and conflict management. CONCLUSIONS: With further development and testing, Collaboration Planning has the potential to support Translational Teams in developing strong team dynamics and team functioning.

2.
Sci Total Environ ; 662: 1012-1027, 2019 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-30738602

RESUMO

The relationship between pesticides and pollinators, while attracting no shortage of attention from scientists, regulators, and the public, has proven resistant to scientific synthesis and fractious in matters of policy and public opinion. This is in part because the issue has been approached in a compartmentalized and intradisciplinary way, such that evaluations of organismal pesticide effects remain largely disjoint from their upstream drivers and downstream consequences. Here, we present a socioecological framework designed to synthesize the pesticide-pollinator system and inform future scholarship and action. Our framework consists of three interlocking domains-pesticide use, pesticide exposure, and pesticide effects-each consisting of causally linked patterns, processes, and states. We elaborate each of these domains and their linkages, reviewing relevant literature and providing empirical case studies. We then propose guidelines for future pesticide-pollinator scholarship and action agenda aimed at strengthening knowledge in neglected domains and integrating knowledge across domains to provide decision support for stakeholders and policymakers. Specifically, we emphasize (1) stakeholder engagement, (2) mechanistic study of pesticide exposure, (3) understanding the propagation of pesticide effects across levels of organization, and (4) full-cost accounting of the externalities of pesticide use and regulation. Addressing these items will require transdisciplinary collaborations within and beyond the scientific community, including the expertise of farmers, agrochemical developers, and policymakers in an extended peer community.


Assuntos
Borboletas/fisiologia , Dípteros/fisiologia , Himenópteros/fisiologia , Praguicidas , Polinização , Agricultura , Animais , Pesquisa
3.
Bioscience ; 68(12): 990-995, 2018 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-30524133

RESUMO

We develop a transdisciplinary deliberative model that moves beyond traditional scientific collaborations to include nonscientists in designing complexity-oriented research. We use the case of declining honey bee health as an exemplar of complex real-world problems requiring cross-disciplinary intervention. Honey bees are important pollinators of the fruits and vegetables we eat. In recent years, these insects have been dying at alarming rates. To prompt the reorientation of research toward the complex reality in which bees face multiple challenges, we came together as a group, including beekeepers, farmers, and scientists. Over a 2-year period, we deliberated about how to study the problem of honey bee deaths and conducted field experiments with bee colonies. We show trust and authority to be crucial factors shaping such collaborative research, and we offer a model for structuring collaboration that brings scientists and nonscientists together with the key objects and places of their shared concerns across time.

4.
Proc Biol Sci ; 284(1857)2017 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-28637858

RESUMO

The social and nutritional environments during early development have the potential to affect offspring traits, but the mechanisms and molecular underpinnings of these effects remain elusive. We used Polistes fuscatus paper wasps to dissect how maternally controlled factors (vibrational signals and nourishment) interact to induce different caste developmental trajectories in female offspring, leading to worker or reproductive (gyne) traits. We established a set of caste phenotype biomarkers in P. fuscatus females, finding that gyne-destined individuals had high expression of three caste-related genes hypothesized to have roles in diapause and mitochondrial metabolism. We then experimentally manipulated maternal vibrational signals (via artificial 'antennal drumming') and nourishment levels (via restricted foraging). We found that these caste-related biomarker genes were responsive to drumming, nourishment level or their interaction. Our results provide a striking example of the potent influence of maternal and nutritional effects in influencing transcriptional activity and developmental outcomes in offspring.


Assuntos
Larva/crescimento & desenvolvimento , Comportamento Materno , Vespas/crescimento & desenvolvimento , Animais , Feminino , Regulação da Expressão Gênica , Larva/genética , Fenótipo , Reprodução , Vespas/genética
5.
Curr Opin Insect Sci ; 10: 149-155, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29588002

RESUMO

I examine recent policymaking efforts in the United States (US) that seek to improve how risks posed by pesticides to insect pollinators are assessed and managed. Utilizing the case of ongoing honey bee die-offs, I argue for a context-sensitive policy framework. From a scientific perspective, this entails not ignoring the uncertain knowledge emerging from laboratory and field studies regarding the indirect effects of low levels of certain insecticides in combination with other factors. From a social scientific perspective, policy initiatives to build partnerships between growers and beekeepers toward mitigating exposure to pesticides are crucial, and need to acknowledge barriers to the adoption of best management practices as well as a historically-established asymmetry between growers and beekeepers in the pollination industry.

6.
Insects ; 4(1): 153-67, 2013 Mar 05.
Artigo em Inglês | MEDLINE | ID: mdl-26466800

RESUMO

Amidst ongoing declines in honey bee health, the contributory role of the newer systemic insecticides continues to be intensely debated. Scores of toxicological field experiments, which bee scientists and regulators in the United States have looked to for definitive causal evidence, indicate a lack of support. This paper analyzes the methodological norms that shape the design and interpretation of field toxicological studies. I argue that contemporary field studies of honey bees and pesticides are underpinned by a "control-oriented" approach, which precludes a serious investigation of the indirect and multifactorial ways in which pesticides could drive declines in honey bee health. I trace the historical rise to prominence of this approach in honey bee toxicology to the development of entomology as a science of insecticide development in the United States. Drawing on "complexity-oriented" knowledge practices in ecology, epidemiology, beekeeping and sociology, I suggest an alternative socio-ecological systems approach, which would entail in situ studies that are less concerned with isolating individual factors and more attentive to the interactive and place-based mix of factors affecting honey bee health.

7.
Commun Integr Biol ; 4(4): 373-7, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21966550

RESUMO

Specialization into reproductive and non-reproductive castes is one of the defining traits of eusocial insects. Knowledge of the proximal causes of caste differentiation is therefore central to achieving an understanding of the evolution of eusociality. Castes are an example of a polyphenism, multiple, discrete phenotypes arising from a single genotype in response to differing environmental conditions. Here we focus on recent work in the social wasps to provide insight into how environmental conditions may trigger the development of caste across a range from independent- to swarm-founding social species. The amount of food larvae receive has long been recognized as a key input factor in the determination of caste, but that alone is insufficient to account for the range of combinations of size, development time and caste among the female offspring of Polistes, an independent-founding wasp. Recent experimental work on P. fuscatus has shown that vibrations that are associated with the feeding of larvae are another essential environmental input in the determination of caste. we present a model of how vibrational signaling in the context of feeding larvae could interact with nutritional input to account for the developmental patterns seen in these wasps. Mapping the distribution of vibrational signaling onto a phylogeny of the social wasps suggests that this trait characterized the common ancestor of the subfamilies vespinae + Polistinae, diversified in the independent-founding species, then was superseded by caste-determining mechanisms in the swarm-founding and vespine species that function more effectively in larger colonies.

8.
Curr Biol ; 21(3): 231-5, 2011 Feb 08.
Artigo em Inglês | MEDLINE | ID: mdl-21256023

RESUMO

Understanding the proximate mechanisms of caste development in eusocial taxa can reveal how social species evolved from solitary ancestors. In Polistes wasps, the current paradigm holds that differential amounts of nutrition during the larval stage cause the divergence of worker and gyne (potential queen) castes. But nutrition level alone cannot explain how the first few females to be produced in a colony develop rapidly yet have small body sizes and worker phenotypes. Here, we provide evidence that a mechanical signal biases caste toward a worker phenotype. In Polistes fuscatus, the signal takes the form of antennal drumming (AD), wherein a female trills her antennae synchronously on the rims of nest cells while feeding prey-liquid to larvae. The frequency of AD occurrence is high early in the colony cycle, when larvae destined to become workers are being reared, and low late in the cycle, when gynes are being reared. Subjecting gyne-destined brood to simulated AD-frequency vibrations caused them to emerge as adults with reduced fat stores, a worker trait. This suggests that AD influences the larval developmental trajectory by inhibiting a physiological element that is necessary to trigger diapause, a gyne trait.


Assuntos
Comportamento Animal , Hierarquia Social , Vespas/crescimento & desenvolvimento , Animais , Distribuição da Gordura Corporal , Feminino , Larva/crescimento & desenvolvimento , Estimulação Física , Vespas/anatomia & histologia , Vespas/fisiologia
9.
Mol Cell Biol ; 22(16): 5813-25, 2002 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-12138192

RESUMO

Exposure of mammalian cells to UV radiation was proposed to stimulate the transcription factor NF-kappa B by a unique mechanism. Typically, rapid and strong inducers of NF-kappa B, such as tumor necrosis factor alpha (TNF-alpha) and bacterial lipopolysaccharide (LPS), lead to rapid phosphorylation and proteasomal degradation of its inhibitory protein, I kappa B alpha. In contrast, UV, a relatively slower and weaker inducer of NF-kappa B, was suggested not to require phosphorylation of I kappa B alpha for its targeted degradation by the proteasome. We now provide evidence to account for this peculiar degradation process of I kappa B alpha. The phospho-I kappa B alpha generated by UV is only detectable by expressing a Delta F-box mutant of the ubiquitin ligase beta-TrCP, which serves as a specific substrate trap for serine 32 and 36 phosphorylated I kappa B alpha. In agreement with this finding, we also find that the I kappa B kinase (IKK) phospho-acceptor sites on I kappa B alpha, core components of the IKK signalsome, and IKK catalytic activity are all required for UV signaling. Furthermore, deletion and point mutation analyses reveal that both the amino-terminal IKK-binding and the carboxy-terminal putative zinc finger domains of NEMO (IKK gamma) are critical for UV-induced NF-kappa B activation. Interestingly, the zinc finger domain is also required for NF-kappa B activation by two other slow and weak inducers, camptothecin and etoposide. In contrast, the zinc finger module is largely dispensable for NF-kappa B activation by the rapid and strong inducers LPS and TNF-alpha. Thus, we suggest that the zinc finger domain of NEMO likely represents a point of convergence for signaling pathways initiated by slow and weak NF-kappa B-activating conditions.


Assuntos
Proteínas de Ligação a DNA/metabolismo , Proteínas I-kappa B , NF-kappa B/metabolismo , Nitrilas , Compostos Orgânicos , Proteínas Serina-Treonina Quinases/metabolismo , Transdução de Sinais/efeitos da radiação , Sulfonas , Raios Ultravioleta , Animais , Antineoplásicos/farmacologia , Proteínas de Transporte/genética , Proteínas de Transporte/metabolismo , Células Cultivadas , DNA Topoisomerases/metabolismo , Proteínas de Ligação a DNA/genética , Fibroblastos/efeitos dos fármacos , Proteínas de Ligação ao GTP/genética , Proteínas de Ligação ao GTP/metabolismo , Genes Reporter , Humanos , Quinase I-kappa B , Lipopolissacarídeos/farmacologia , Camundongos , Inibidor de NF-kappaB alfa , NF-kappa B/antagonistas & inibidores , Fosfoproteínas/genética , Fosfoproteínas/metabolismo , Ligação Proteica , Proteínas Serina-Treonina Quinases/genética , Estrutura Secundária de Proteína , Transdução de Sinais/efeitos dos fármacos , Transdução de Sinais/fisiologia , Inibidores da Topoisomerase , Fator de Necrose Tumoral alfa/farmacologia , Dedos de Zinco , Proteínas Contendo Repetições de beta-Transducina
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