14 results
Ten new insights in climate science 2023
- Mercedes Bustamante, Joyashree Roy, Daniel Ospina, Ploy Achakulwisut, Anubha Aggarwal, Ana Bastos, Wendy Broadgate, Josep G. Canadell, Edward R. Carr, Deliang Chen, Helen A. Cleugh, Kristie L. Ebi, Clea Edwards, Carol Farbotko, Marcos Fernández-Martínez, Thomas L. Frölicher, Sabine Fuss, Oliver Geden, Nicolas Gruber, Luke J. Harrington, Judith Hauck, Zeke Hausfather, Sophie Hebden, Aniek Hebinck, Saleemul Huq, Matthias Huss, M. Laurice P. Jamero, Sirkku Juhola, Nilushi Kumarasinghe, Shuaib Lwasa, Bishawjit Mallick, Maria Martin, Steven McGreevy, Paula Mirazo, Aditi Mukherji, Greg Muttitt, Gregory F. Nemet, David Obura, Chukwumerije Okereke, Tom Oliver, Ben Orlove, Nadia S. Ouedraogo, Prabir K. Patra, Mark Pelling, Laura M. Pereira, Åsa Persson, Julia Pongratz, Anjal Prakash, Anja Rammig, Colin Raymond, Aaron Redman, Cristobal Reveco, Johan Rockström, Regina Rodrigues, David R. Rounce, E. Lisa F. Schipper, Peter Schlosser, Odirilwe Selomane, Gregor Semieniuk, Yunne-Jai Shin, Tasneem A. Siddiqui, Vartika Singh, Giles B. Sioen, Youba Sokona, Detlef Stammer, Norman J. Steinert, Sunhee Suk, Rowan Sutton, Lisa Thalheimer, Vikki Thompson, Gregory Trencher, Kees van der Geest, Saskia E. Werners, Thea Wübbelmann, Nico Wunderling, Jiabo Yin, Kirsten Zickfeld, Jakob Zscheischler
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- Journal:
- Global Sustainability / Volume 7 / 2024
- Published online by Cambridge University Press:
- 01 December 2023, e19
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Non-technical summary
We identify a set of essential recent advances in climate change research with high policy relevance, across natural and social sciences: (1) looming inevitability and implications of overshooting the 1.5°C warming limit, (2) urgent need for a rapid and managed fossil fuel phase-out, (3) challenges for scaling carbon dioxide removal, (4) uncertainties regarding the future contribution of natural carbon sinks, (5) intertwinedness of the crises of biodiversity loss and climate change, (6) compound events, (7) mountain glacier loss, (8) human immobility in the face of climate risks, (9) adaptation justice, and (10) just transitions in food systems.
Technical summaryThe Intergovernmental Panel on Climate Change Assessment Reports provides the scientific foundation for international climate negotiations and constitutes an unmatched resource for researchers. However, the assessment cycles take multiple years. As a contribution to cross- and interdisciplinary understanding of climate change across diverse research communities, we have streamlined an annual process to identify and synthesize significant research advances. We collected input from experts on various fields using an online questionnaire and prioritized a set of 10 key research insights with high policy relevance. This year, we focus on: (1) the looming overshoot of the 1.5°C warming limit, (2) the urgency of fossil fuel phase-out, (3) challenges to scale-up carbon dioxide removal, (4) uncertainties regarding future natural carbon sinks, (5) the need for joint governance of biodiversity loss and climate change, (6) advances in understanding compound events, (7) accelerated mountain glacier loss, (8) human immobility amidst climate risks, (9) adaptation justice, and (10) just transitions in food systems. We present a succinct account of these insights, reflect on their policy implications, and offer an integrated set of policy-relevant messages. This science synthesis and science communication effort is also the basis for a policy report contributing to elevate climate science every year in time for the United Nations Climate Change Conference.
Social media summaryWe highlight recent and policy-relevant advances in climate change research – with input from more than 200 experts.
Preschoolers’ emotion reactivity and regulation: Links with maternal psychological distress and child behavior problems
- Stella Tsotsi, Jessica L. Borelli, Mumtaz Backer, Noraini Veragoo, Nurshuhadah Abdulla, Kok Hian Tan, Yap Seng Chong, Helen Chen, Michael J. Meaney, Birit Broekman, Anne Rifkin-Graboi
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- Journal:
- Development and Psychopathology / Volume 35 / Issue 3 / August 2023
- Published online by Cambridge University Press:
- 15 November 2021, pp. 1079-1091
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Maladaptive offspring emotion regulation has been identified as one pathway linking maternal and child psychological well-being in school-aged children. Whether such a pathway is present earlier in life still remains unclear. The present study investigated the role of preschoolers’ emotion reactivity and regulation in the association between maternal psychological distress and child internalizing and externalizing problems. Children’s emotion reactivity and regulation were assessed through both observed behavior and physiology. At 42 months of age, children (n = 251; 128 girls) completed a fear induction task during which their heart-rate variability was assessed and their behavior was monitored, and maternal self-reports on depressive mood and anxiety were collected. At 48 months mothers and fathers reported on their children’s internalizing and externalizing problems. Higher maternal depressive mood was associated with lower child fear-related reactivity and regulation, as indexed by heart-rate variability. The latter mediated the association between higher maternal depressive mood and higher preschoolers’ externalizing problems. Overall, our findings support the role of preschoolers’ emotion reactivity and regulation in the relationship between maternal psychological distress and children’s socio-emotional difficulties. This role may also depend on the discrete emotion to which children react or seek to regulate as, here, we only assessed fear-related reactivity and regulation.
Ten new insights in climate science 2021: a horizon scan
- Maria A. Martin, Olga Alcaraz Sendra, Ana Bastos, Nico Bauer, Christoph Bertram, Thorsten Blenckner, Kathryn Bowen, Paulo M. Brando, Tanya Brodie Rudolph, Milena Büchs, Mercedes Bustamante, Deliang Chen, Helen Cleugh, Purnamita Dasgupta, Fatima Denton, Jonathan F. Donges, Felix Kwabena Donkor, Hongbo Duan, Carlos M. Duarte, Kristie L. Ebi, Clea M. Edwards, Anja Engel, Eleanor Fisher, Sabine Fuss, Juliana Gaertner, Andrew Gettelman, Cécile A.J. Girardin, Nicholas R. Golledge, Jessica F. Green, Michael R. Grose, Masahiro Hashizume, Sophie Hebden, Helmke Hepach, Marina Hirota, Huang-Hsiung Hsu, Satoshi Kojima, Sharachchandra Lele, Sylvia Lorek, Heike K. Lotze, H. Damon Matthews, Darren McCauley, Desta Mebratu, Nadine Mengis, Rachael H. Nolan, Erik Pihl, Stefan Rahmstorf, Aaron Redman, Colleen E. Reid, Johan Rockström, Joeri Rogelj, Marielle Saunois, Lizzie Sayer, Peter Schlosser, Giles B. Sioen, Joachim H. Spangenberg, Detlef Stammer, Thomas N.S. Sterner, Nicola Stevens, Kirsten Thonicke, Hanqin Tian, Ricarda Winkelmann, James Woodcock
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- Journal:
- Global Sustainability / Volume 4 / 2021
- Published online by Cambridge University Press:
- 18 October 2021, e25
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Non-technical summary
We summarize some of the past year's most important findings within climate change-related research. New research has improved our understanding about the remaining options to achieve the Paris Agreement goals, through overcoming political barriers to carbon pricing, taking into account non-CO2 factors, a well-designed implementation of demand-side and nature-based solutions, resilience building of ecosystems and the recognition that climate change mitigation costs can be justified by benefits to the health of humans and nature alone. We consider new insights about what to expect if we fail to include a new dimension of fire extremes and the prospect of cascading climate tipping elements.
Technical summaryA synthesis is made of 10 topics within climate research, where there have been significant advances since January 2020. The insights are based on input from an international open call with broad disciplinary scope. Findings include: (1) the options to still keep global warming below 1.5 °C; (2) the impact of non-CO2 factors in global warming; (3) a new dimension of fire extremes forced by climate change; (4) the increasing pressure on interconnected climate tipping elements; (5) the dimensions of climate justice; (6) political challenges impeding the effectiveness of carbon pricing; (7) demand-side solutions as vehicles of climate mitigation; (8) the potentials and caveats of nature-based solutions; (9) how building resilience of marine ecosystems is possible; and (10) that the costs of climate change mitigation policies can be more than justified by the benefits to the health of humans and nature.
Social media summaryHow do we limit global warming to 1.5 °C and why is it crucial? See highlights of latest climate science.
Maternal antenatal depression and child mental health: Moderation by genomic risk for attention-deficit/hyperactivity disorder
- Lawrence M. Chen, Marieke S. Tollenaar, Shantala A. Hari Dass, Andrée-Anne Bouvette-Turcot, Irina Pokhvisneva, Hélène Gaudreau, Carine Parent, Josie Diorio, Lisa M. McEwen, Julia L. MacIsaac, Michael S. Kobor, Roseriet Beijers, Carolina de Weerth, Patricia P. Silveira, Sherif Karama, Michael J. Meaney, Kieran J. O'Donnell, The MAVAN Study Team
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- Development and Psychopathology / Volume 32 / Issue 5 / December 2020
- Published online by Cambridge University Press:
- 11 January 2021, pp. 1810-1821
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Maternal antenatal depression strongly influences child mental health but with considerable inter-individual variation that is, in part, linked to genotype. The challenge is to effectively capture the genotypic influence. We outline a novel approach to describe genomic susceptibility to maternal antenatal depression focusing on child emotional/behavioral difficulties. Two cohorts provided measures of maternal depression, child genetic variation, and child mental health symptoms. We constructed a conventional polygenic risk score (PRS) for attention-deficit/hyperactivity disorder (ADHD) (PRSADHD) that significantly moderated the association between maternal antenatal depression and internalizing problems at 60 months (p = 2.94 × 10−4, R2 = .18). We then constructed an interaction PRS (xPRS) based on a subset of those single nucleotide polymorphisms from the PRSADHD that most accounted for the moderation of the association between maternal antenatal depression and child outcome. The interaction between maternal antenatal depression and this xPRS accounted for a larger proportion of the variance in child emotional/behavioral problems than models based on any PRSADHD (p = 5.50 × 10−9, R2 = .27), with similar findings in the replication cohort. The xPRS was significantly enriched for genes involved in neuronal development and synaptic function. Our study illustrates a novel approach to the study of genotypic moderation on the impact of maternal antenatal depression on child mental health and highlights the utility of the xPRS approach. These findings advance our understanding of individual differences in the developmental origins of mental health.
Positive maternal mental health during pregnancy associated with specific forms of adaptive development in early childhood: Evidence from a longitudinal study—CORRIGENDUM
- Desiree Y. Phua, Michelle K. Z. L. Kee, Dawn X. P. Koh, Anne Rifkin-Graboi, Mary Daniels, Helen Chen, Yap Seng Chong, Birit F. P. Broekman, Iliana Magiati, Neerja Karnani, Michael Pluess, Michael J. Meaney, the Growing Up In Singapore Towards Healthy Outcomes Study Group
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- Development and Psychopathology / Volume 30 / Issue 4 / October 2018
- Published online by Cambridge University Press:
- 10 August 2018, p. 1547
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The early care environment and DNA methylome variation in childhood
- Elika Garg, Li Chen, Thao T. T. Nguyen, Irina Pokhvisneva, Lawrence M. Chen, Eva Unternaehrer, Julia L. MacIsaac, Lisa M. McEwen, Sarah M. Mah, Helene Gaudreau, Robert Levitan, Ellen Moss, Marla B. Sokolowski, James L. Kennedy, Meir S. Steiner, Michael J. Meaney, Joanna D. Holbrook, Patricia P. Silveira, Neerja Karnani, Michael S. Kobor, Kieran J. O'Donnell, Mavan Study Team
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- Development and Psychopathology / Volume 30 / Issue 3 / August 2018
- Published online by Cambridge University Press:
- 02 August 2018, pp. 891-903
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Prenatal adversity shapes child neurodevelopment and risk for later mental health problems. The quality of the early care environment can buffer some of the negative effects of prenatal adversity on child development. Retrospective studies, in adult samples, highlight epigenetic modifications as sentinel markers of the quality of the early care environment; however, comparable data from pediatric cohorts are lacking. Participants were drawn from the Maternal Adversity Vulnerability and Neurodevelopment (MAVAN) study, a longitudinal cohort with measures of infant attachment, infant development, and child mental health. Children provided buccal epithelial samples (mean age = 6.99, SD = 1.33 years, n = 226), which were used for analyses of genome-wide DNA methylation and genetic variation. We used a series of linear models to describe the association between infant attachment and (a) measures of child outcome and (b) DNA methylation across the genome. Paired genetic data was used to determine the genetic contribution to DNA methylation at attachment-associated sites. Infant attachment style was associated with infant cognitive development (Mental Development Index) and behavior (Behavior Rating Scale) assessed with the Bayley Scales of Infant Development at 36 months. Infant attachment style moderated the effects of prenatal adversity on Behavior Rating Scale scores at 36 months. Infant attachment was also significantly associated with a principal component that accounted for 11.9% of the variation in genome-wide DNA methylation. These effects were most apparent when comparing children with a secure versus a disorganized attachment style and most pronounced in females. The availability of paired genetic data revealed that DNA methylation at approximately half of all infant attachment-associated sites was best explained by considering both infant attachment and child genetic variation. This study provides further evidence that infant attachment can buffer some of the negative effects of early adversity on measures of infant behavior. We also highlight the interplay between infant attachment and child genotype in shaping variation in DNA methylation. Such findings provide preliminary evidence for a molecular signature of infant attachment and may help inform attachment-focused early intervention programs.
Positive maternal mental health during pregnancy associated with specific forms of adaptive development in early childhood: Evidence from a longitudinal study
- Desiree Y. Phua, Michelle K. Z. L. Kee, Dawn X. P. Koh, Anne Rifkin-Graboi, Mary Daniels, Helen Chen, Yap Seng Chong, Birit F. P. Broekman, Iliana Magiati, Neerja Karnani, Michael Pluess, Michael J. Meaney, The Growing Up In Singapore Towards Healthy Outcomes Study Group
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- Development and Psychopathology / Volume 29 / Issue 5 / December 2017
- Published online by Cambridge University Press:
- 22 November 2017, pp. 1573-1587
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The quality of prenatal maternal mental health, from psychological stress and depressive symptoms to anxiety and other nonpsychotic mental disorders, profoundly affects fetal neurodevelopment. Despite the evidence for the influence of positive mental well-being on health, there is, to our knowledge, no research examining the possible effects of positive antenatal mental health on the development of the offspring. Using exploratory bifactor analysis, this prospective study (n = 1,066) demonstrated the feasibility of using common psychiatric screening tools to examine the effect of positive maternal mental health. Antenatal mental health was assessed during 26th week of pregnancy. The effects on offspring were assessed when the child was 12, 18, and 24 months old. Results showed that positive antenatal mental health was uniquely associated with the offspring's cognitive, language and parentally rated competences. This study shows that the effects of positive maternal mental health are likely to be specific and distinct from the sheer absence of symptoms of depression or anxiety.
Contributors
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- By Jean Marie Abraham, Catherine Ayoub, Jessica Dym Bartlett, Karen L. Bierman, Paula A. Braveman, Robert H. Bruininks, Frances A. Campbell, Rachel Chazan-Cohen, Peggy Chen, Alyssa Crawford, Katina D’Onise, Celene E. Domitrovich, Greg J. Duncan, Susan Egerter, Michelle M. Englund, Temitope O. Erinosho, Kevin D. Frick, Michael K. Georgieff, Scott D. Gest, Bernard Guyer, Momoko Hayakawa, Ariel Kalil, Pinar Karaca-Mandic, Samuel A. Kleiner, Narayana Kocherlakota, John W. Lynch, Sai Ma, Laurie T. Martin, Robyn A. Mcdermott, Robin E. Mockenhaupt, Robert L. Nix, Helen Raikes, Arthur J. Reynolds, Arthur J. Rolnick, Sharon Rolnick, Lawrence J. Schweinhart, Amy Susman-Stillman, Judy A. Temple, Jim Thorp, Dianne S. Ward, Janet A. Welsh, Barry White, Sung J. Choi Yoo, Kathleen M. Ziol-Guest
- Edited by Arthur J. Reynolds, University of Minnesota, Arthur J. Rolnick, University of Minnesota, Judy A. Temple, University of Minnesota
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- Health and Education in Early Childhood
- Published online:
- 05 February 2015
- Print publication:
- 19 February 2015, pp xiii-xiv
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Brain-derived neurotrophic factor (BDNF) Val66Met polymorphism influences the association of the methylome with maternal anxiety and neonatal brain volumes
- Li Chen, Hong Pan, Ta Anh Tuan, Ai Ling Teh, Julia L. MacIsaac, Sarah M. Mah, Lisa M. McEwen, Yue Li, Helen Chen, Birit F. P. Broekman, Jan Paul Buschdorf, Yap Seng Chong, Kenneth Kwek, Seang Mei Saw, Peter D. Gluckman, Marielle V. Fortier, Anne Rifkin-Graboi, Michael S. Kobor, Anqi Qiu, Michael J. Meaney, Joanna D. Holbrook, The Gusto Study Group
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- Development and Psychopathology / Volume 27 / Issue 1 / February 2015
- Published online by Cambridge University Press:
- 02 February 2015, pp. 137-150
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Early life environments interact with genotype to determine stable phenotypic outcomes. Here we examined the influence of a variant in the brain-derived neurotropic factor (BDNF) gene (Val66Met), which underlies synaptic plasticity throughout the central nervous system, on the degree to which antenatal maternal anxiety associated with neonatal DNA methylation. We also examined the association between neonatal DNA methylation and brain substructure volume, as a function of BDNF genotype. Infant, but not maternal, BDNF genotype dramatically influences the association of antenatal anxiety on the epigenome at birth as well as that between the epigenome and neonatal brain structure. There was a greater impact of antenatal maternal anxiety on the DNA methylation of infants with the methionine (Met)/Met compared to both Met/valine (Val) and Val/Val genotypes. There were significantly more cytosine–phosphate–guanine sites where methylation levels covaried with right amygdala volume among Met/Met compared with both Met/Val and Val/Val carriers. In contrast, more cytosine–phosphate–guanine sites covaried with left hippocampus volume in Val/Val infants compared with infants of the Met/Val or Met/Met genotype. Thus, antenatal Maternal Anxiety × BDNF Val66Met Polymorphism interactions at the level of the epigenome are reflected differently in the structure of the amygdala and the hippocampus. These findings suggest that BDNF genotype regulates the sensitivity of the methylome to early environment and that differential susceptibility to specific environmental conditions may be both tissue and function specific.
The challenges of dementia care in rural China*
- Shulin Chen, Lisa L Boyle, Yeates Conwell, Shuiyuan Xiao, Helen Fung Kum Chiu
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- International Psychogeriatrics / Volume 26 / Issue 7 / July 2014
- Published online by Cambridge University Press:
- 20 May 2014, pp. 1059-1064
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Many countries face policy challenges related to the well-being of their aging populations, and China, with the world's largest aging population, is no different. Over the past 40 years, China has experienced demographic transition toward an “aging society.” According to the National Bureau of Statistics in China (NBSC), the number of people aged 60 years and older in China has risen to 185 million, with rural areas aging more rapidly during China's demographic transition (National Bureau of Statistics of China, 2013). In 1982, the proportion of population aged 60 years and older was 7.8% in rural China and 7.1% in urban China. However, by 2011 these proportions had risen to 12.6% and 15.4%, respectively, with a national average of 13.26% (National Bureau of Statistics of China, 2013). Difference between rural and urban areas in the proportion of the population aged 65 years and older in China has shown a similar trend over time. Rapid economic reforms since the 1980s, associated with increased rural-to-urban migration, especially the outflow of rural young population, have resulted in a larger proportion of elderly adults in rural areas (Cai et al., 2012; National Bureau of Statistics of China, 2013). These same social forces have resulted in relatively fewer people available to take care of the growing population of older adults as well. The “elderly dependency ratio” (the ratio of older adults in China to those in the population of working age) has increased from 8.0% in 1982 to 12.7% in 2012 (National Bureau of Statistics of China, 2013). The economic and social impact on caregiving will be profound.
Chapter 16 - Retention and Persistence of Women and Minorities Along the Engineering Pathway in the United States
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- By Gary Lichtenstein, Quality Evaluation Designs, Helen L. Chen, Stanford University, Karl A. Smith, Purdue University, Theresa A. Maldonado, Division of Engineering Education and Centers of the Directorate for Engineering at the National Science Foundation
- Edited by Aditya Johri, Virginia Polytechnic Institute and State University, Barbara M. Olds
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- Cambridge Handbook of Engineering Education Research
- Published online:
- 05 February 2015
- Print publication:
- 10 February 2014, pp 311-334
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Summary
Introduction
Countries around the world rely on the contributions of engineers to support national interests and maintain economic competitiveness. In the United States, government and industry leaders have long regarded engineers and other members of the science, technology, engineering, and mathematics (STEM) workforce as vital to the nation's economy and security. It is hardly surprising, then, that issues surrounding student retention and persistence in engineering degree programs and the engineering workforce are of special interest to engineering educators.
Since the 1970s, federal policy and funding have specifically focused on attracting and retaining women and minorities in science and engineering fields. Yet progress has been halting. In one comprehensive study, the United States ranked 30th of 35 countries in the proportion of female Ph.D.s in engineering, manufacturing, and construction, and 24th of 30 with respect to growth in the proportion of female Ph.D.s in these sectors (European Commission, 2009, p. 51). In this chapter, we examine the influence of U.S. federal policy on engineering education over the past forty years, with special attention to the impact of efforts to increase the number of women and minorities in the STEM workforce.
Contributors
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- By Rose Teteki Abbey, K. C. Abraham, David Tuesday Adamo, LeRoy H. Aden, Efrain Agosto, Victor Aguilan, Gillian T. W. Ahlgren, Charanjit Kaur AjitSingh, Dorothy B E A Akoto, Giuseppe Alberigo, Daniel E. Albrecht, Ruth Albrecht, Daniel O. Aleshire, Urs Altermatt, Anand Amaladass, Michael Amaladoss, James N. Amanze, Lesley G. Anderson, Thomas C. Anderson, Victor Anderson, Hope S. Antone, María Pilar Aquino, Paula Arai, Victorio Araya Guillén, S. Wesley Ariarajah, Ellen T. Armour, Brett Gregory Armstrong, Atsuhiro Asano, Naim Stifan Ateek, Mahmoud Ayoub, John Alembillah Azumah, Mercedes L. García Bachmann, Irena Backus, J. Wayne Baker, Mieke Bal, Lewis V. Baldwin, William Barbieri, António Barbosa da Silva, David Basinger, Bolaji Olukemi Bateye, Oswald Bayer, Daniel H. Bays, Rosalie Beck, Nancy Elizabeth Bedford, Guy-Thomas Bedouelle, Chorbishop Seely Beggiani, Wolfgang Behringer, Christopher M. Bellitto, Byard Bennett, Harold V. Bennett, Teresa Berger, Miguel A. Bernad, Henley Bernard, Alan E. Bernstein, Jon L. Berquist, Johannes Beutler, Ana María Bidegain, Matthew P. Binkewicz, Jennifer Bird, Joseph Blenkinsopp, Dmytro Bondarenko, Paulo Bonfatti, Riet en Pim Bons-Storm, Jessica A. Boon, Marcus J. Borg, Mark Bosco, Peter C. Bouteneff, François Bovon, William D. Bowman, Paul S. Boyer, David Brakke, Richard E. Brantley, Marcus Braybrooke, Ian Breward, Ênio José da Costa Brito, Jewel Spears Brooker, Johannes Brosseder, Nicholas Canfield Read Brown, Robert F. Brown, Pamela K. Brubaker, Walter Brueggemann, Bishop Colin O. Buchanan, Stanley M. Burgess, Amy Nelson Burnett, J. Patout Burns, David B. Burrell, David Buttrick, James P. Byrd, Lavinia Byrne, Gerado Caetano, Marcos Caldas, Alkiviadis Calivas, William J. Callahan, Salvatore Calomino, Euan K. Cameron, William S. Campbell, Marcelo Ayres Camurça, Daniel F. Caner, Paul E. Capetz, Carlos F. Cardoza-Orlandi, Patrick W. Carey, Barbara Carvill, Hal Cauthron, Subhadra Mitra Channa, Mark D. Chapman, James H. Charlesworth, Kenneth R. Chase, Chen Zemin, Luciano Chianeque, Philip Chia Phin Yin, Francisca H. Chimhanda, Daniel Chiquete, John T. Chirban, Soobin Choi, Robert Choquette, Mita Choudhury, Gerald Christianson, John Chryssavgis, Sejong Chun, Esther Chung-Kim, Charles M. A. Clark, Elizabeth A. Clark, Sathianathan Clarke, Fred Cloud, John B. Cobb, W. Owen Cole, John A Coleman, John J. Collins, Sylvia Collins-Mayo, Paul K. Conkin, Beth A. Conklin, Sean Connolly, Demetrios J. Constantelos, Michael A. Conway, Paula M. Cooey, Austin Cooper, Michael L. Cooper-White, Pamela Cooper-White, L. William Countryman, Sérgio Coutinho, Pamela Couture, Shannon Craigo-Snell, James L. Crenshaw, David Crowner, Humberto Horacio Cucchetti, Lawrence S. Cunningham, Elizabeth Mason Currier, Emmanuel Cutrone, Mary L. Daniel, David D. Daniels, Robert Darden, Rolf Darge, Isaiah Dau, Jeffry C. Davis, Jane Dawson, Valentin Dedji, John W. de Gruchy, Paul DeHart, Wendy J. Deichmann Edwards, Miguel A. De La Torre, George E. Demacopoulos, Thomas de Mayo, Leah DeVun, Beatriz de Vasconcellos Dias, Dennis C. Dickerson, John M. Dillon, Luis Miguel Donatello, Igor Dorfmann-Lazarev, Susanna Drake, Jonathan A. Draper, N. Dreher Martin, Otto Dreydoppel, Angelyn Dries, A. J. Droge, Francis X. D'Sa, Marilyn Dunn, Nicole Wilkinson Duran, Rifaat Ebied, Mark J. Edwards, William H. Edwards, Leonard H. Ehrlich, Nancy L. Eiesland, Martin Elbel, J. Harold Ellens, Stephen Ellingson, Marvin M. Ellison, Robert Ellsberg, Jean Bethke Elshtain, Eldon Jay Epp, Peter C. Erb, Tassilo Erhardt, Maria Erling, Noel Leo Erskine, Gillian R. Evans, Virginia Fabella, Michael A. Fahey, Edward Farley, Margaret A. Farley, Wendy Farley, Robert Fastiggi, Seena Fazel, Duncan S. Ferguson, Helwar Figueroa, Paul Corby Finney, Kyriaki Karidoyanes FitzGerald, Thomas E. FitzGerald, John R. Fitzmier, Marie Therese Flanagan, Sabina Flanagan, Claude Flipo, Ronald B. Flowers, Carole Fontaine, David Ford, Mary Ford, Stephanie A. Ford, Jim Forest, William Franke, Robert M. Franklin, Ruth Franzén, Edward H. Friedman, Samuel Frouisou, Lorelei F. Fuchs, Jojo M. Fung, Inger Furseth, Richard R. Gaillardetz, Brandon Gallaher, China Galland, Mark Galli, Ismael García, Tharscisse Gatwa, Jean-Marie Gaudeul, Luis María Gavilanes del Castillo, Pavel L. Gavrilyuk, Volney P. Gay, Metropolitan Athanasios Geevargis, Kondothra M. George, Mary Gerhart, Simon Gikandi, Maurice Gilbert, Michael J. Gillgannon, Verónica Giménez Beliveau, Terryl Givens, Beth Glazier-McDonald, Philip Gleason, Menghun Goh, Brian Golding, Bishop Hilario M. Gomez, Michelle A. Gonzalez, Donald K. Gorrell, Roy Gottfried, Tamara Grdzelidze, Joel B. Green, Niels Henrik Gregersen, Cristina Grenholm, Herbert Griffiths, Eric W. Gritsch, Erich S. Gruen, Christoffer H. Grundmann, Paul H. Gundani, Jon P. Gunnemann, Petre Guran, Vidar L. Haanes, Jeremiah M. Hackett, Getatchew Haile, Douglas John Hall, Nicholas Hammond, Daphne Hampson, Jehu J. Hanciles, Barry Hankins, Jennifer Haraguchi, Stanley S. Harakas, Anthony John Harding, Conrad L. Harkins, J. William Harmless, Marjory Harper, Amir Harrak, Joel F. Harrington, Mark W. Harris, Susan Ashbrook Harvey, Van A. Harvey, R. Chris Hassel, Jione Havea, Daniel Hawk, Diana L. Hayes, Leslie Hayes, Priscilla Hayner, S. Mark Heim, Simo Heininen, Richard P. Heitzenrater, Eila Helander, David Hempton, Scott H. Hendrix, Jan-Olav Henriksen, Gina Hens-Piazza, Carter Heyward, Nicholas J. Higham, David Hilliard, Norman A. Hjelm, Peter C. Hodgson, Arthur Holder, M. Jan Holton, Dwight N. Hopkins, Ronnie Po-chia Hsia, Po-Ho Huang, James Hudnut-Beumler, Jennifer S. Hughes, Leonard M. Hummel, Mary E. Hunt, Laennec Hurbon, Mark Hutchinson, Susan E. Hylen, Mary Beth Ingham, H. Larry Ingle, Dale T. Irvin, Jon Isaak, Paul John Isaak, Ada María Isasi-Díaz, Hans Raun Iversen, Margaret C. Jacob, Arthur James, Maria Jansdotter-Samuelsson, David Jasper, Werner G. Jeanrond, Renée Jeffery, David Lyle Jeffrey, Theodore W. Jennings, David H. Jensen, Robin Margaret Jensen, David Jobling, Dale A. Johnson, Elizabeth A. Johnson, Maxwell E. Johnson, Sarah Johnson, Mark D. Johnston, F. Stanley Jones, James William Jones, John R. Jones, Alissa Jones Nelson, Inge Jonsson, Jan Joosten, Elizabeth Judd, Mulambya Peggy Kabonde, Robert Kaggwa, Sylvester Kahakwa, Isaac Kalimi, Ogbu U. Kalu, Eunice Kamaara, Wayne C. Kannaday, Musimbi Kanyoro, Veli-Matti Kärkkäinen, Frank Kaufmann, Léon Nguapitshi Kayongo, Richard Kearney, Alice A. Keefe, Ralph Keen, Catherine Keller, Anthony J. Kelly, Karen Kennelly, Kathi Lynn Kern, Fergus Kerr, Edward Kessler, George Kilcourse, Heup Young Kim, Kim Sung-Hae, Kim Yong-Bock, Kim Yung Suk, Richard King, Thomas M. King, Robert M. Kingdon, Ross Kinsler, Hans G. Kippenberg, Cheryl A. 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Yee, Viktor Yelensky, Yeo Khiok-Khng, Gustav K. K. Yeung, Angela Yiu, Amos Yong, Yong Ting Jin, You Bin, Youhanna Nessim Youssef, Eliana Yunes, Robert Michael Zaller, Valarie H. Ziegler, Barbara Brown Zikmund, Joyce Ann Zimmerman, Aurora Zlotnik, Zhuo Xinping
- Edited by Daniel Patte, Vanderbilt University, Tennessee
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- Book:
- The Cambridge Dictionary of Christianity
- Published online:
- 05 August 2012
- Print publication:
- 20 September 2010, pp xi-xliv
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Contributors
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- By Graham Allan, Donna M. Allen, Irwin Altman, Arthur Aron, Donald H. Baucom, Steven R. H. Beach, Ellen Berscheid, Rosemary Blieszner, Jeffrey Boase, Tyfany M. J. Boettcher, Barbara B. Brown, Abraham P. Buunk, Lorne Campbell, Daniel J. Canary, Rodney Cate, John P. Caughlin, Mahnaz Charania, Jennie Y. Chen, F. Scott Christopher, Jennifer A. Clarke, Marilyn Coleman, W. Andrew Collins, Michael K. Coolsen, Nathan R. Cottle, Carolyn E. Cutrona, Marianne Dainton, Valerian J. Derlega, Lisa M. Diamond, Pieternel Dijkstra, Steve Duck, Pearl A. Dykstra, Norman B. Epstein, Beverley Fehr, Frank D. Fincham, Helen E. Fisher, Julie Fitness, Garth J. O. Fletcher, Myron D. Friesen, Lawrence Ganong, Kelli A. Gardner, Jenny de Jong Gierveld, Robin Goodwin, Christine R. Gray, Kathryn Greene, David W. Harris, Willard W. Hartup, John H. Harvey, Kathi L. Heffner, Ted L. Huston, William J. Ickes, Emily A. Impett, Michael P. Johnson, Deborah J. Jones, Deborah A. Kashy, Janice K. Kiecolt‐Glaser, Jeffrey L. Kirchner, Brighid M. Kleinman, Galena H. Kline, Mark L. Knapp, Ascan Koerner, Jean‐Philippe Laurenceau, Kim Leon, Timothy J. Loving, Stephanie D. Madsen, Howard J. Markman, Alicia Mathews, Mario Mikulincer, Patricia Noller, Nickola C. Overall, Letitia Anne Peplau, Daniel Perlman, Sally Planalp, Urmila Pillay, Nicole D. Pleasant, Caryl E. Rusbult, Barbara R. Sarason, Irwin G. Sarason, Phillip R. Shaver, Alan L. Sillars, Jeffry A. Simpson, Susan Sprecher, Susan Stanton, Greg Strong, Catherine A. Surra, Anita L. Vangelisti, C. Arthur VanLear, Theo van Tilburg, Barry Wellman, Amy Wenzel, Carol M. Werner, Adam R. West, Sarah W. Whitton, Heike A. Winterheld
- Edited by Anita L. Vangelisti, University of Texas, Austin, Daniel Perlman, University of British Columbia, Vancouver
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- The Cambridge Handbook of Personal Relationships
- Published online:
- 05 June 2012
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- 05 June 2006, pp xvii-xxii
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Controlled heterogeneous nucleation of melt-textured YBa2Cu3O6+x by addition of Al2O3 particles
- Yan L. Chen, Lijie Zhang, Helen M. Chan, Martin P. Harmer
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- Journal:
- Journal of Materials Research / Volume 8 / Issue 9 / September 1993
- Published online by Cambridge University Press:
- 03 March 2011, pp. 2128-2133
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- September 1993
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The reaction between alumina and yttrium barium cuprate subjected to a melt-texturing heat treatment was studied. Microstructural examination of quenched, partially transformed samples revealed that at ∼1050 °C (which is above the incongruent melting temperature of YBa2Cu3O6+x) a reaction layer forms at the alumina interface. The reaction products were identified as Ba6Y2Al4O15 and a copper-rich liquid phase. On cooling below the peritectic temperature, aligned domains of YBa2Cu3O6+x (123) were observed to nucleate preferentially at the reaction layer. For samples of melt-textured 123 deliberately seeded with alumina particles, it was found that nucleation and growth of 123 occurred exclusively at the particles. A reaction sequence for the formation of the Ba6Y2Al4O15 is put forward, together with a discussion of the possible nucleation mechanisms for the 123.