The Molecular Basis for Life in Extreme Environments

2021 ◽  
Vol 50 (1) ◽  
Author(s):  
Nozomi Ando ◽  
Blanca Barquera ◽  
Douglas H. Bartlett ◽  
Eric Boyd ◽  
Audrey A. Burnim ◽  
...  
Keyword(s):  
Molecular Basis ◽  
Structural Changes ◽  
Extreme Environments ◽  
Annual Review ◽  
Publication Date ◽  
Extreme Conditions ◽  
Future Directions ◽  
Environmental Genomics ◽  
Life On Earth ◽  
Diversity Of Life

Sampling and genomic efforts over the past decade have revealed an enormous quantity and diversity of life in Earth's extreme environments. This new knowledge of life on Earth poses the challenge of understanding its molecular basis in such inhospitable conditions, given that such conditions lead to loss of structural changes and of function in biomolecules from mesophiles. In this review, we discuss the physicochemical properties of extreme environments. We present the state of recent progress in extreme environmental genomics. We then present an overview of our current understanding of the biomolecular adaptation to extreme conditions. As our current and future understanding of biomolecular structure–function relationships in extremophiles requires methodologies adapted to extremes of pressure, temperature, and chemical composition, advances in instrumentation for probing biophysical properties under extreme conditions are presented. Finally, we briefly discuss possible future directions in extreme biophysics. Expected final online publication date for the Annual Review of Biophysics, Volume 50 is May 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

Social Epidemiology: Past, Present, and Future

2022 ◽  
Vol 43 (1) ◽  
Author(s):  
Ana V. Diez Roux
Keyword(s):  
Social Epidemiology ◽  
Policy Implications ◽  
Annual Review ◽  
Publication Date ◽  
Social Production ◽  
Systemic Racism ◽  
Future Directions ◽  
The Social ◽  
Critical Approaches ◽  
Social Causes

In a context where epidemiologic research has been heavily influenced by a biomedical and individualistic approach, the naming of “social epidemiology” allowed explicit emphasis on the social production of disease as a powerful explanatory paradigm and as critically important for interventions to improve population health. This review briefly highlights key substantive areas of focus in social epidemiology over the past 30 years, reflects on major advances and insights, and identifies challenges and possible future directions. Future opportunities for social epidemiology include grounding research in theoretically based and systemic conceptual models of the fundamental social drivers of health; implementing a scientifically rigorous yet realistic approach to drawing conclusions about social causes; using complementary methods to generate valid explanations and identify effective actions; leveraging the power of harmonization, replication, and big data; extending interdisciplinarity and diversity; advancing emerging critical approaches to understanding the health impacts of systemic racism and its policy implications; going global; and embracing a broad approach to generating socially useful research. Expected final online publication date for the Annual Review of Public Health, Volume 43 is April 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

Chemistry Under Shock Conditions

2021 ◽  
Vol 51 (1) ◽  
Author(s):  
Brenden W. Hamilton ◽  
Michael N. Sakano ◽  
Chunyu Li ◽  
Alejandro Strachan
Keyword(s):  
Materials Science ◽  
Low Frequency ◽  
Annual Review ◽  
Publication Date ◽  
Energy Localization ◽  
Ambient Conditions ◽  
Static Loads ◽  
Nonequilibrium Conditions ◽  
Life On Earth ◽  
Modes Coupling

Shock loading takes materials from ambient conditions to extreme conditions of temperature and nonhydrostatic stress on picosecond timescales. In molecular materials the fast loading results in temporary nonequilibrium conditions with overheated low-frequency modes and relatively cold, high-frequency, intramolecular modes; coupling the shock front with the material's microstructure and defects results in energy localization in hot spots. These processes can conspire to lead to a material response not observed under quasi-static loads. This review focuses on chemical reactions induced by dynamical loading, the understanding of which requires bringing together materials science, shock physics, and condensed matter chemistry. Recent progress in experiments and simulations holds the key to the answer of long-standing grand challenges with implications for the initiation of detonation and life on Earth. Expected final online publication date for the Annual Review of Materials Science, Volume 51 is August 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

High-Entropy Ultra-High-Temperature Borides and Carbides: A New Class of Materials for Extreme Environments

2021 ◽  
Vol 51 (1) ◽  
Author(s):  
Lun Feng ◽  
William G. Fahrenholtz ◽  
Donald W. Brenner
Keyword(s):  
High Temperature ◽  
Extreme Environments ◽  
Experimental Studies ◽  
Heat Fluxes ◽  
Annual Review ◽  
Publication Date ◽  
Structure Property ◽  
High Entropy ◽  
Ultra High Temperature Ceramics ◽  
Ultra High Temperature

Herein, we critically evaluate computational and experimental studies in the emerging field of high-entropy ultra-high-temperature ceramics. High-entropy ultra-high-temperature ceramics are candidates for use in extreme environments that include temperatures over 2,000°C, heat fluxes of hundreds of watts per square centimeter, or irradiation from neutrons with energies of several megaelectron volts. Computational studies have been used to predict the ability to synthesize stable high-entropy materials as well as the resulting properties but face challenges such asthe number and complexity of unique bonding environments that are possible for these compositionally complex compounds. Experimental studies have synthesized and densified a large number of different high-entropy borides and carbides, but no systematic studies of composition-structure-property relationships have been completed. Overall, this emerging field presents a number of exciting research challenges and numerous opportunities for future studies. Expected final online publication date for the Annual Review of Materials Science, Volume 51 is July 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

Shear Pleasure: The Structure, Formation, and Thermodynamics of Crystallographic Shear Phases

2021 ◽  
Vol 51 (1) ◽  
Author(s):  
Albert A. Voskanyan ◽  
Alexandra Navrotsky
Keyword(s):  
Materials Science ◽  
Defect Formation ◽  
Shear Plane ◽  
Annual Review ◽  
Publication Date ◽  
Future Directions ◽  
Extended Defect ◽  
Shear Structures ◽  
Crystallographic Shear ◽  
Exciting Area

A renaissance of interest in crystallographic shear structures and our recent work in this remarkable class of materials inspired this review. We first summarize the geometrical aspects of shear plane formation and possible transformations in ReO3, rutile, and perovskite-based structures. Then we provide a mechanistic overview of crystallographic shear formation, plane ordering, and propagation. Next we describe the energetics of planar defect formation and interaction, equilibria between point and extended defect structures, and thermodynamic stability of shear compounds. Finally, we emphasize the remaining challenges and propose future directions in this exciting area. Expected final online publication date for the Annual Review of Materials Science, Volume 51 is July 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

Personality Psychology

2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Brent W. Roberts ◽  
Hee J. Yoon
Keyword(s):  
Individual Differences ◽  
Organizational Structure ◽  
Online Publication ◽  
Annual Review ◽  
Publication Date ◽  
Future Directions ◽  
Personality Psychology ◽  
Units Of Analysis ◽  
And Behaviors ◽  
Over Time

Personality psychology, which seeks to study individual differences in thoughts, feelings, and behaviors that persist over time and place, has experienced a renaissance in the last few decades. It has also not been reviewed as a field in the Annual Review of Psychology since 2001. In this article, we seek to provide an update as well as a meta-organizational structure to the field. In particular, personality psychology has a prescribed set of four responsibilities that it implicitly or explicitly tackles as a field: ( a) describing what personality is—i.e., what the units of analysis in the field are; ( b) documenting how it develops; ( c) explaining the processes of personality and why they affect functioning; and ( d) providing a framework for understanding individuals and explaining their actions, feelings, and motivations. We review progress made over the last 20 years to address these four agendas and conclude by highlighting future directions and ongoing challenges to the field. Expected final online publication date for the Annual Review of Psychology, Volume 73 is January 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

Achievement Motivation: What We Know and Where We Are Going

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Allan Wigfield ◽  
Katherine Muenks ◽  
Jacquelynne S. Eccles
Keyword(s):  
Achievement Motivation ◽  
Extrinsic Motivation ◽  
Developmental Psychology ◽  
Empirical Work ◽  
Theory Development ◽  
Annual Review ◽  
Publication Date ◽  
Future Directions ◽  
Competence Beliefs ◽  
The Status

We review work on the development of children's and adolescents’ achievement motivation, focusing on recent advances in the empirical work in the field and commenting on the status of current theories prominent in the literature. We first focus on the main theories guiding the field and the development of motivational beliefs, values, and goals; intrinsic and extrinsic motivation; identity and motivation; and motivation and emotion. We provide our views on future directions for theory development and what we believe are the critical next steps in developmental research. We then discuss the burgeoning intervention work designed to enhance different aspects of children's motivation: their competence beliefs and mindsets, intrinsic motivation, valuing of achievement, and growth mindsets. We also provide suggestions for next steps in this area in order to guide the field forward. We close with a brief consideration of neuroscience approaches to motivation. Expected final online publication date for the Annual Review of Developmental Psychology, Volume 3 is December 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

Financial Architecture and Financial Stability

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Franklin Allen ◽  
Ansgar Walther
Keyword(s):  
Financial Stability ◽  
Structural Changes ◽  
Financial Intermediaries ◽  
Annual Review ◽  
Publication Date ◽  
Extended Version ◽  
Necessary And Sufficient Condition ◽  
Financial Systems ◽  
Financial Architecture ◽  
Necessary And Sufficient

This article studies the links between financial stability and the architecture of financial systems. We review the existing literature and provide organizing frameworks for analyzing three empirically important aspects of financial architecture: the rise of nonbank financial intermediaries, the regulatory response to these structural changes, and the emergence of complex interbank networks. One of our main new results is a necessary and sufficient condition for whether nonbank intermediaries are immune to runs in an extended version of the Diamond–Dybvig model. Expected final online publication date for the Annual Review of Financial Economics, Volume 13 is November 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

Green Algal Models for Multicellularity

2021 ◽  
Vol 55 (1) ◽  
Author(s):  
James Umen ◽  
Matthew D. Herron
Keyword(s):  
Single Cells ◽  
Model Organisms ◽  
Annual Review ◽  
Publication Date ◽  
Freshwater Algae ◽  
Green Algal ◽  
Photosynthetic Eukaryotes ◽  
Volvocine Algae ◽  
Repeated Evolution ◽  
Life On Earth

The repeated evolution of multicellularity across the tree of life has profoundly affected the ecology and evolution of nearly all life on Earth. Many of these origins were in different groups of photosynthetic eukaryotes, or algae. Here, we review the evolution and genetics of multicellularity in several groups of green algae, which include the closest relatives of land plants. These include millimeter-scale, motile spheroids of up to 50,000 cells in the volvocine algae; decimeter-scale seaweeds in the genus Ulva (sea lettuce); and very plantlike, meter-scale freshwater algae in the genus Chara (stoneworts). We also describe algae in the genus Caulerpa, which are giant, multinucleate, morphologically complex single cells. In each case, we review the life cycle, phylogeny, and genetics of traits relevant to the evolution of multicellularity, and genetic and genomic resources available for the group in question. Finally, we suggest routes toward developing these groups as model organisms for the evolution of multicellularity. Expected final online publication date for the Annual Review of Genetics, Volume 55 is November 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

From Theoretical Work to Clinical Translation: Progress in Concentric Tube Robots

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Zisos Mitros ◽  
S.M. Hadi Sadati ◽  
Ross Henry ◽  
Lyndon Da Cruz ◽  
Christos Bergeles
Keyword(s):  
Autonomous Systems ◽  
Theoretical Work ◽  
Clinical Applications ◽  
Annual Review ◽  
Publication Date ◽  
Continuum Robots ◽  
Future Directions ◽  
Elastic Tubes ◽  
Concentric Tube Robots

Continuum robots can traverse anatomical pathways to intervene in regions deep inside the human body. They are able to steer along 3D curves in confined spaces and dexterously handle tissues. Concentric tube robots (CTRs) are continuum robots that comprise a series of precurved elastic tubes that can be translated and rotated with respect to each other to control the shape of the robot and tip pose. CTRs are a rapidly maturing technology that has seen extensive research over the past decade. Today, they are being evaluated as tools for a variety of surgical applications, as they can offer precision and manipulability in tight workspaces. This review provides an exhaustive classification of research on CTRs based on their clinical applications and highlights approaches for modeling, control, design, and sensing. Competing approaches are critically presented, leading to a discussion of future directions to address the limitations of current research and its translation to clinical applications. Expected final online publication date for the Annual Review of Control, Robotics, and Autonomous Systems, Volume 5 is May 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

Emotion and Politics: Noncognitive Psychological Biases in Public Opinion

2022 ◽  
Vol 25 (1) ◽  
Author(s):  
Steven W. Webster ◽  
Bethany Albertson
Keyword(s):  
Public Opinion ◽  
Political Behavior ◽  
Democratic Governance ◽  
Annual Review ◽  
Publication Date ◽  
Future Directions ◽  
Partisan Polarization ◽  
Contemporary Politics ◽  
And Gender ◽  
The Relationship

Contemporary politics is noteworthy for its emotional character. Emotions shape and, in turn, are elicited by partisan polarization, public opinion, and political attitudes. In this article, we outline recent work in the field of emotion and politics with an emphasis on the relationship between emotion and polarization, issue attitudes, information processing, and views on democratic governance. We also highlight a growing body of scholarship that examines the racial and gender differences in emotion's ability to affect political behavior. We conclude with a discussion of unaddressed questions and suggestions for future directions for scholars working in this area of growing importance. Expected final online publication date for the Annual Review of Political Science, Volume 25 is May 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

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