Article
Engineering, Chemical
Yijing Yang, Zhibin Wang, Rong Chen, Xun Zhu, Qiang Liao, Dingding Ye, Yang Yang, Wei Li
Summary: This study visually examined the localized photothermal effect of a focused infrared laser on droplets in a microchannel. Results showed that laser irradiation caused droplets to move and coalesce, with initial movement velocity depending on laser power and droplet length. Higher laser power and shorter droplet length resulted in faster movement and coalescence of the droplets.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Physical
King C. Lai, Charles T. Campbell, James W. Evans
Summary: Nanostructured systems are prone to coarsening, which can lead to deactivation when used as catalysts. The dependence of diffusivity on nanocluster size controls coarsening kinetics. Traditional mean-field theory is refined to account for different densities and hop rates on different facets, capturing the occurrence of local minima in diffusivity versus size. However, this approach has fundamental shortcomings and a beyond-mean-field treatment is needed to capture the cooperative multi-step diffusion process in faceted nanoclusters.
NANOSCALE HORIZONS
(2023)
Article
Multidisciplinary Sciences
Zachary R. Miller, Stefano Allesina
Summary: By extending the classic Levins metapopulation model, researchers found that in a new setting, populations of organisms colonize patches connected by dispersal and retain memory of the previous occupant after local extinction, modeling habitat modification. Their study suggests that patch memory facilitates coexistence of multiple species and may lead to a positive relationship between diversity and robustness.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Genetics & Heredity
Jeremy Brown, Tin Tin Su
Summary: Loss of heterozygosity (LOH) occurs when a heterozygous mutant cell loses the remaining wild-type allele, resulting in a homozygous mutant. This study investigates the mechanisms of X-ray-induced LOH in Drosophila larval wing discs and identifies E2F1 as a key regulator of LOH. Furthermore, the study reveals new mechanisms for the generation and elimination of cells with chromosome aberrations after exposure to ionizing radiation (IR).
Article
Multidisciplinary Sciences
Maria Akhmanova, Shamsi Emtenani, Daniel Krueger, Attila Gyoergy, Mariana Guarda, Mikhail Vlasov, Fedor Vlasov, Andrei Akopian, Aparna Ratheesh, Stefano De Renzis, Daria E. Siekhaus
Summary: This study reveals that cellular infiltration in densely packed tissues requires cell division and tissue dynamics regulation.
Article
Ecology
Christer Solbreck, Anna Cassel-Lundhagen, Ane T. Laugen, Peter Kanuch
Summary: This study analyzed the post-glacial colonization process of a parasitic insect on white swallowwort in northern Europe. The results showed that the insect's reproductive behavior is influenced by environmental changes, host plant distribution, insect population dynamics, and life history, and it exhibits high levels of local inbreeding and low within-population heterozygosity.
ECOLOGY AND EVOLUTION
(2023)
Review
Ecology
Bo Zhang, Donald L. DeAngelis, Wei-Ming Ni
Summary: Carrying capacity, a key concept in ecology, is not a fundamental property of ecological systems but an emergent property dependent on a population's intrinsic growth and dispersal rates.
TRENDS IN ECOLOGY & EVOLUTION
(2021)
Article
Materials Science, Multidisciplinary
Tianbo Yu, Chuanshi Hong, Yubin Zhang, Adam Lindkvist, Wenjun Liu, Jon Tischler, Dorte Juul Jensen
Summary: A synchrotron X-ray micro-diffraction technique called differential aperture X-ray microscopy (DAXM) was used to study the subgrain evolution in the bulk interior during ex-situ recovery annealing of a lightly deformed Al sample. This study is the first to use 4D DAXM for recovery analysis. Supplementary TEM observations confirm the accurate reconstruction of the microstructure by DAXM in 3D. The DAXM result directly observes the 3D microstructural evolution during annealing, confirming the importance of subgrain boundary migration and providing new evidence of subgrain coalescence as alternative mechanisms for subgrain growth.
MATERIALS CHARACTERIZATION
(2023)
Article
Ecology
Ana Payo-Payo, Paul Acker, Greta Bocedi, Justin M. J. Travis, Sarah J. Burthe, Michael P. Harris, Sarah Wanless, Mark Newell, Francis Daunt, Jane M. Reid
Summary: Variation in expression of seasonal migration versus residence, both among-individual and within-individual, is common in nature and can greatly impact the dynamics of partially migratory metapopulations. However, this variation is rarely incorporated into metapopulation dynamic models. Thus, a general framework is needed to identify the role of variable seasonal movements and associated vital rates in controlling system persistence.
JOURNAL OF ANIMAL ECOLOGY
(2022)
Article
Agronomy
Masoud Sheidai, Fahimeh Koohdar
Summary: This study examines the evolutionary mechanisms in the genus Tamarix, including polyploidy, gene flow, and inter-species introgression. Analysis of genetic sequences from 34 Tamarix species reveals the presence of these mechanisms through the comparison of phylogenetic trees and gene trees. The study also identifies gene flow among Tamarix species for the ITS nuclear sequences.
GENETIC RESOURCES AND CROP EVOLUTION
(2023)
Article
Biochemistry & Molecular Biology
Eleonora Gnocchini, Eleonora Pilesi, Ludovica Schiano, Fiammetta Verni
Summary: This study investigates whether depletion of the active form of vitamin B6, pyridoxal 5'-phosphate (PLP), can cause loss of heterozygosity (LOH) in the tumor suppressor gene warts (wts) in Drosophila. The researchers found that PLP depletion, induced by PLP inhibitors, promotes LOH of wts locus and results in a significant frequency of wts tumors. Additionally, they identified mitotic recombination as a possible mechanism for PLP deficiency-induced LOH. Importantly, LOH of wts locus induced by PLP inhibitors was rescued by PLP supplementation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
P. Polovnikov, V. Tarasov, M. S. Veshchunov
Summary: A new interpretation of breakaway swelling in high-density dispersion fuels under irradiation in research reactors is proposed based on the pore coalescence mechanism and collision events of equilibrium gas-filled pores. The growth rate of fuel swelling sharply increases at a relatively high value of fuel swelling under high burnups, in qualitative agreement with observations for various intermetallic compounds.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Engineering, Mechanical
Amin Ghadami, Eamon B. O'Dea, John M. Drake, Pejman Rohani, Bogdan I. Epureanu
Summary: Prediction and control of emerging pathogens is a fundamental challenge. Nonparametric tools are needed to characterize the dynamics of geographical spread of pathogens and support disease control planning. A multivariate method using spectral similarity of disease prevalence time series as a feature is proposed. The increase in spectral similarity indicates the proximity of elimination, providing insight into the underlying state of the epidemiological system.
NONLINEAR DYNAMICS
(2023)
Article
Multidisciplinary Sciences
Sedigheh Yagoobi, Nikhil Sharma, Arne Traulsen
Summary: The structure of a population greatly impacts its evolutionary dynamics, with individuals interacting more often with those nearby. Evolutionary graph theory is commonly used to model population structure, where nodes represent reproducing individuals and links connect them to their neighbors. By replacing single individuals with subpopulations at nodes, a graph-structured metapopulation is formed. The dynamics between local subpopulations are determined by update mechanisms.
JOURNAL OF THE ROYAL SOCIETY INTERFACE
(2023)
Article
Multidisciplinary Sciences
Harald Ringbauer, John Novembre, Matthias Steinrucken
Summary: The study reveals low rates of close kin unions in most ancient populations through analysis of ancient DNA data, as well as a marked decay in background parental relatedness coinciding with or shortly after the advent of sedentary agriculture. This signal, likely linked to increasing local population sizes, is observed across several geographic transects worldwide.
NATURE COMMUNICATIONS
(2021)
Article
Evolutionary Biology
Jeffrey P. Vedanayagam, Daniel Garrigan
BMC EVOLUTIONARY BIOLOGY
(2015)
Article
Genetics & Heredity
Daniel Garrigan
Article
Evolutionary Biology
Daniel Garrigan
EVOLUTIONARY BIOINFORMATICS
(2013)
Article
Genetics & Heredity
Sarah B. Kingan, Daniel Garrigan, Daniel L. Hartl
Article
Evolutionary Biology
Daniel Garrigan, Sarah B. Kingan, Anthony J. Geneva, Jeffrey P. Vedanayagam, Daven C. Presgraves
GENOME BIOLOGY AND EVOLUTION
(2014)
Article
Biochemistry & Molecular Biology
Daniel Garrigan, Sarah B. Kingan, Anthony J. Geneva, Peter Andolfatto, Andrew G. Clark, Kevin R. Thornton, Daven C. Presgraves
Article
Biochemistry & Molecular Biology
Daniel Garrigan, Richard Lewontin, John Wakeley
MOLECULAR BIOLOGY AND EVOLUTION
(2010)
Article
Biochemistry & Molecular Biology
Cara L. Brand, Sarah B. Kingan, Longjun Wu, Daniel Garrigan
MOLECULAR BIOLOGY AND EVOLUTION
(2013)
Article
Multidisciplinary Sciences
Anthony J. Geneva, Christina A. Muirhead, Sarah B. Kingan, Daniel Garrigan
Article
Genetics & Heredity
Anthony Geneva, Daniel Garrigan
Article
Genetics & Heredity
J. Graham Ruby, Kevin M. Wright, Kristin A. Rand, Amir Kermany, Keith Noto, Don Curtis, Neal Varner, Daniel Garrigan, Dmitri Slinkov, Ilya Dorfman, Julie M. Granka, Jake Byrnes, Natalie Myres, Catherine Ball
Article
Biology
Colin D. Meiklejohn, Emily L. Landeen, Kathleen E. Gordon, Thomas Rzatkiewicz, Sarah B. Kingan, Anthony J. Geneva, Jeffrey P. Vedanayagam, Christina A. Muirhead, Daniel Garrigan, David L. Stern, Daven C. Presgraves
Article
Genetics & Heredity
Kevin M. Wright, Kristin A. Rand, Amir Kermany, Keith Noto, Don Curtis, Daniel Garrigan, Dmitri Slinkov, Ilya Dorfman, Julie M. Granka, Jake Byrnes, Natalie Myres, Catherine A. Ball, J. Graham Ruby
G3-GENES GENOMES GENETICS
(2019)
Article
Anthropology
Daniel Garrigan, Sarah B. Kingan
CURRENT ANTHROPOLOGY
(2007)