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3. Effects of a liquefied petroleum gas stove intervention on stillbirth, congenital anomalies and neonatal mortality: A multi-country household air pollution intervention network trial

Author

Younger, Ashley, Ye, Wenlu, Alkon, Abbey, Harknett, Kristen, Kirby, Miles A, Elon, Lisa, Lovvorn, Amy E, Wang, Jiantong, Diaz-Artiga, Anaité, McCracken, John P, Gonzalez, Adly Castañaza, Alarcon, Libny Monroy, Mukeshimana, Alexie, Rosa, Ghislaine, Chiang, Marilu, Balakrishnan, Kalpana, Garg, Sarada S, Pillarisetti, Ajay, Piedrahita, Ricardo, Johnson, Michael A, Craik, Rachel, Papageorghiou, Aris T, Toenjes, Ashley, Williams, Kendra N, Underhill, Lindsay J, Hartinger, Stella M, Nicolaou, Laura, Chang, Howard H, Naeher, Luke P, Rosenthal, Joshua, Checkley, William, Peel, Jennifer L, Clasen, Thomas F, Thompson, Lisa M, and Investigators, Household Air Pollution Intervention Network

Subjects
Reproductive Medicine, Biomedical and Clinical Sciences, Health Sciences, Perinatal Period - Conditions Originating in Perinatal Period, Pediatric, Preterm, Low Birth Weight and Health of the Newborn, Prevention, Health Effects of Household Energy Combustion, Climate-Related Exposures and Conditions, Conditions Affecting the Embryonic and Fetal Periods, Clinical Trials and Supportive Activities, Infant Mortality, Health Effects of Indoor Air Pollution, Clinical Research, Reproductive health and childbirth, Good Health and Well Being, Household Air Pollution Intervention Network (HAPIN) Investigators, Birth outcomes, Congenital anomaly, Cooking fuel, Low- and middle-income countries, Neonatal mortality, Stillbirth, Environmental Sciences
Abstract

Household air pollution (HAP) from cooking with solid fuels used during pregnancy has been associated with adverse pregnancy outcomes. The Household Air Pollution Intervention Network (HAPIN) trial was a randomized controlled trial that assessed the impact of a liquefied petroleum gas (LPG) stove and fuel intervention on health in Guatemala, India, Peru, and Rwanda. Here we investigated the effects of the LPG stove and fuel intervention on stillbirth, congenital anomalies and neonatal mortality and characterized exposure-response relationships between personal exposures to fine particulate matter (PM2.5), black carbon (BC) and carbon monoxide (CO) and these outcomes. Pregnant women (18 to

Published
2024

5. Exponentially long transient time to synchronization of coupled chaotic circle maps in dense random networks

Author

Mendonca, Hans Muller, Tönjes, Ralf, and Pereira, Tiago

Subjects
Condensed Matter - Disordered Systems and Neural Networks, Nonlinear Sciences - Chaotic Dynamics
Abstract

We study the transition to synchronization in large, dense networks of chaotic circle maps, where an exact solution of the mean-field dynamics in the infinite network and all-to-all coupling limit is known. In dense networks of finite size and link probability of smaller than one, the incoherent state is meta-stable for coupling strengths that are larger than the mean-field critical coupling. We observe chaotic transients with exponentially distributed escape times and study the scaling behavior of the mean time to synchronization.

Published
2023
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6. Eccentric rotary swaging variants

Author

Ishkina Svetlana Ortmann, Toenjes Anastasiya, Schenck Christian, von Hehl Axel, Zoch Hans-Werner, and Kuhfuss Bernd

Subjects
Cold forming, microstructure, metal forming, Engineering (General). Civil engineering (General), TA1-2040, Technology (General), T1-995, Manufactures, TS1-2301
Abstract

Rotary swaging is an incremental cold forming process that changes beneath the geometry also the microstructure and mechanical properties of the workpiece. Especially a new process design with Eccentric Flat Shaped Dies (EFSD) influences both the kind and amount of stress and plastic strain and consequently the material structure, and hence the material and workpiece properties. Eccentric rotary swaging typically provides a helical material flow. According to the process parameters the microstructure features a typical eddy pattern with a spiral shaped grain orientation. The forming process can be carried out in one or more process steps. In a multistage process, it is possible to change the feed direction and, hence, the material flow helix direction. This approach can be used as a possibility to improve the homogeneity of the workpiece and material properties. In addition, for this aims an intermediate heat treatment in multistage forming operations could be realized. Following the goal of optimizing the final properties, the question arises how these mechanical and thermal treatments affect the material microstructure and the forming properties of the workpiece and how they interact. Experiments were conducted with austenitic stainless steel rods of grade AISI304. The effects of the varied feed direction, feed velocity and heat treatment between the forming operations are discussed.

Published
2019
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7. Evaluating TCFD Reporting: A New Application of Zero-Shot Analysis to Climate-Related Financial Disclosures

Author

Auzepy, Alix, Tönjes, Elena, Lenz, David, and Funk, Christoph

Subjects
Computer Science - Computers and Society, Computer Science - Computation and Language
Abstract

We examine climate-related disclosures in a large sample of reports published by banks that officially endorsed the recommendations of the Task Force for Climate-related Financial Disclosures (TCFD). In doing so, we introduce a new application of the zero-shot text classification. By developing a set of fine-grained TCFD labels, we show that zero-shot analysis is a useful tool for classifying climate-related disclosures without further model training. Overall, our findings indicate that corporate climate-related disclosures grew dynamically after the launch of the TCFD recommendations. However, there are marked differences in the extent of reporting by recommended disclosure topic, suggesting that some recommendations have not yet been fully met. Our findings yield important conclusions for the design of climate-related disclosure frameworks.

Published
2023

8. Effects of a LPG stove and fuel intervention on adverse maternal outcomes: A multi-country randomized controlled trial conducted by the Household Air Pollution Intervention Network (HAPIN)

Author

Younger, Ashley, Alkon, Abbey, Harknett, Kristen, Kirby, Miles A, Elon, Lisa, Lovvorn, Amy E, Wang, Jiantong, Ye, Wenlu, Diaz-Artiga, Anaité, McCracken, John P, Gonzalez, Adly Castañaza, Alarcon, Libny Monroy, Mukeshimana, Alexie, Rosa, Ghislaine, Chiang, Marilu, Balakrishnan, Kalpana, Garg, Sarada S, Pillarisetti, Ajay, Piedrahita, Ricardo, Johnson, Michael, Craik, Rachel, Papageorghiou, Aris T, Toenjes, Ashley, Quinn, Ashlinn, Williams, Kendra N, Underhill, Lindsay, Chang, Howard H, Naeher, Luke P, Rosenthal, Joshua, Checkley, William, Peel, Jennifer L, Clasen, Thomas F, Thompson, Lisa M, and investigators, HAPIN

Subjects
Infant Mortality, Health Effects of Household Energy Combustion, Perinatal Period - Conditions Originating in Perinatal Period, Contraception/Reproduction, Pediatric, Clinical Research, Clinical Trials and Supportive Activities, Prevention, Health Effects of Indoor Air Pollution, Behavioral and Social Science, Reproductive health and childbirth, Good Health and Well Being, HAPIN investigators, Birth outcomes, Cooking fuel, Household air pollution, Hypertensive disorders of pregnancy, Low- and middle-income countries, Postpartum hemorrhage and maternal mortality, Spontaneous abortion, Environmental Sciences
Abstract

Household air pollution from solid cooking fuel use during gestation has been associated with adverse pregnancy and birth outcomes. The Household Air Pollution Intervention Network (HAPIN) trial was a randomized controlled trial of free liquefied petroleum gas (LPG) stoves and fuel in Guatemala, Peru, India, and Rwanda. A primary outcome of the main trial was to report the effects of the intervention on infant birth weight. Here we evaluate the effects of a LPG stove and fuel intervention during pregnancy on spontaneous abortion, postpartum hemorrhage, hypertensive disorders of pregnancy, and maternal mortality compared to women who continued to use solid cooking fuels. Pregnant women (18-34 years of age; gestation confirmed by ultrasound at 9-19 weeks) were randomly assigned to an intervention (n = 1593) or control (n = 1607) arm. Intention-to-treat analyses compared outcomes between the two arms using log-binomial models. Among the 3195 pregnant women in the study, there were 10 spontaneous abortions (7 intervention, 3 control), 93 hypertensive disorders of pregnancy (47 intervention, 46 control), 11 post postpartum hemorrhage (5 intervention, 6 control) and 4 maternal deaths (3 intervention, 1 control). Compared to the control arm, the relative risk of spontaneous abortion among women randomized to the intervention was 2.32 (95% confidence interval (CI): 0.60, 8.96), hypertensive disorders of pregnancy 1.02 (95% CI: 0.68, 1.52), postpartum hemorrhage 0.83 (95% CI: 0.25, 2.71) and 2.98 (95% CI: 0.31, 28.66) for maternal mortality. In this study, we found that adverse maternal outcomes did not differ based on randomized stove type across four country research sites.

Published
2023

9. Eccentric rotary swaging variants

Author

Toenjes Anastasiya, Ishkina Svetlana, Schenck Christian, von Hehl Axel, Zoch Hans-Werner, and Kuhfuss Bernd

Subjects
Cold forming, Micro structure, Metal forming, Engineering (General). Civil engineering (General), TA1-2040
Abstract

Rotary swaging is an incremental cold forming process that changes beneath the geometry also the microstructure and mechanical properties of workpiece. Especially a new process design with Eccentric Flat Shaped Dies (EFSD) influences both the kind and amount of stress and plastic strain and consequently the material structure and hence the material and workpiece properties. Eccentric rotary swaging typically provides a helical material flow. According to the process parameters the microstructure features a typical eddy pattern with a spiral shaped grain orientation. The forming process can be carried out in one or more process steps. In a multi-stage process, it is possible to change the feed direction and, hence, the material flow helix direction. This approach can be used as a possibility to improve the homogeneity of the workpiece and material properties. In addition, for this aims an intermediate heat treatment in multi-stage forming operations could be realised. Following the goal of optimising the final properties, the question arises how these mechanical and thermal treatments affect the material microstructure and the forming properties of the workpiece and how they interact. Experiments were conducted with austenitic stainless steel rods of grade AISI304. The effects of the varied feed direction, feed velocity and heat treatment between the forming operations are discussed.

Published
2018
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10. Process chain for the fabrication of hardenable aluminium-zirconium micro-components by deep drawing

Author

Toenjes Anastasiya, Kovac Julien, Koehler Bernd, von Hehl Axel, Mehner Andreas, Clausen Brigitte, and Zoch Hans-Werner

Subjects
Cold forming, Material, Development, Engineering (General). Civil engineering (General), TA1-2040
Abstract

Today, micro components are used in various industrial sectors such as electronics engineering and medical applications. The final quality of such parts depends on each individual step of the production chain from the manufacturing of semi-finished parts to the post-processing. In this study, magnetron sputtering is used to manufacture thin (15-30 μm) aluminium-zirconium alloy foils for the deep drawing of high strength and hardenable micro cups, which can be, for example, employed as micro valve caps. The development of a novel process chain for the production of these parts includes four different steps, beginning with the production of Al-Zr foils by magnetron sputtering. Secondly, tensile tests are performed with the foils in order to estimate their mechanical properties. Subsequently, micro deep drawing is used to produce the cup’s shape, and finally, a heat treatment in a drop-down tube furnace adjusts the cup’s hardness during fall. It is shown in particular that Al-Zr foils produced by magnetron sputtering have an attractive cold forming and hardening potential due to a microstructure consisting essentially of an oversaturated solid solution of zirconium in the aluminium matrix. This material state enables adequate formability and simplifies the heat treatment process since no solution annealing is required.

Published
2018
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12. Noise induced swarming of active particles

Author

Zheng, Chunming and Tönjes, Ralf

Subjects
Condensed Matter - Soft Condensed Matter, Condensed Matter - Disordered Systems and Neural Networks
Abstract

We report on the effect of spatially correlated noise on the velocities of self propelled particles. Correlations in the random forces acting on self propelled particles can induce directed collective motion, i.e. swarming. Even with repulsive coupling in the velocity directions, which favors a disordered state, strong correlations in the fluctuations can align the velocities locally leading to a macroscopic, turbulent velocity field. On the other hand, while spatially correlated noise is aligning the velocities locally, the swarming transition to globally directed motion is inhibited when the correlation length of the noise is nonzero, but smaller than the system size. We analyze the swarming transition in $d$ dimensional space in a mean field model of globally coupled velocity vectors., Comment: 8 pages, 2 figures (9 panels), to appear in APS Physical Review E

Published
2022
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13. Does Texas' Compensatory Education Funding Get to the Intended Students?

Author

Toenjes, Laurence A.

Abstract

Two questions about Texas school expenditure patterns are examined. First, "How progressive are spending patterns among high and low poverty schools?" Second, "How unequal are expenditures per pupil between schools with at least 70% of their students classified as economically disadvantaged, in different districts?" The data, for school year 2017-2018, are restricted to 3,453 elementary and middle schools in 90 large Texas districts. The schools in each district were divided into high and low poverty groups. The differences in the average per pupil spending for operations between the two groups ranged from plus $1,382 in one district to a negative $802 in another. The average expenditures in schools with at least 70% economically disadvantaged students were 75% greater in one district than in another. It is demonstrated that districts with less extreme average levels of low-income students have more opportunity to act as good Samaritans, generally exhibiting substantially greater spending in their high poverty schools. This finding supports arguments for student funding weights that increase with increasing proportions of economically disadvantaged students. An incidental finding is that a commonly used measure of funding progressivity is a direct function of district and school level variances in poverty averages, and is therefore biased by them.

Published
2021

17. Do Charter Schools Receive Their Fair Share of Funding? School Finance Equity for Charter and Traditional Public Schools

Author

Knight, David S. and Toenjes, Laurence A.

Abstract

U.S. charter schools are publicly funded through state school finance formulas that often mirror the traditional public school finance systems. While charter school advocates and critics disagree over whether charters receive an equitable share of funding, few discussions are based on rigorous analyses of funding and expenditures. Most prior analyses, especially those presented in policy briefs or white papers, examine average funding differences without exploring underlying cost factors between the two sectors. Our purpose is to demonstrate how careful analysis of charter school funding with appropriate methodological approaches can shed light on disagreements about charter school finance policy. Using detailed school finance data from Texas as a case study, we find that after accounting for differences in accounting structures and cost factors, charter schools receive significantly more state and local funding compared to traditional public schools with similar structural characteristics and student demographics. However, many small charter schools are actually underfunded relative to their traditional public school counterparts. Policy simulations demonstrate that on average, each student who transfers to a charter school increases the cost to the state by $1,500. We discuss the implications of these findings for both school finance policy in Texas and nationally.

Published
2020

19. Cooking with liquefied petroleum gas or biomass and fetal growth outcomes: a multi-country randomised controlled trial

Author

Bankundiye, Gloriose, Boyd Barr, Dana, Burrowes, Vanessa, Bussalleu, Alejandra, Campbell, Devan, Canuz, Eduardo, Castañaza, Adly, Clark, Maggie, Crocker, Mary, De León, Oscar, Dusabimana, Ephrem, Elon, Lisa, Espinoza, Juan G, Pineda Fuentes, Irma, Ghosh, Ahana, Goodman, Dina, Gupton, Savannah, Hamid, Sarah, Harvey, Steven, Hengstermann, Mayari, Hennessee, Ian, Herrera, Phabiola, Howard, Marjorie, Howards, Penelope P., Jaacks, Lindsay, Kearns, Katherine, Kremer, Jacob, Laws, Margaret A., Lenzen, Pattie, Liao, Jiawen, Lovvorn, Amy, Mbabazi, Jane, McPeek, Julia N., Meyers, Rachel, Miranda, J. Jaime, Mollinedo, Erick, Monroy, Libny, Mukhopadhyay, Krishnendu, Mutariyani, Bernard, Naeher, Luke P., Nambajimana, Abidan, Natesan, Durairaj, Nizam, Azhar, Ntivuguruzwa, Jean de Dieu, Piedrahita, Ricardo, Puttaswamy, Naveen, Puzzolo, Elisa, Quinn, Ashlinn, Rajamani, Karthikeyan D., Rajkumar, Sarah, Ramasami, Rengaraj, Ramirez, Alexander, Ryan, P. Barry, Saidam, Sudhakar, Sakas, Zoe, Sambandam, Sankar, Sarnat, Jeremy, Smith, Kirk, Swearing, Damien, Toenjes, Ashley, Underhill, Lindsay, Uwizeyimana, Jean D, Valdes, Viviane, Verma, Amit, Warnock, Megan, Ye, Wenlu, Young, Bonnie, Younger, Ashley, Monroy-Alarcón, Libny Y., Castañaza Gonzalez de Durante, Adly, López-Ortega, Claudia, Gonzalez, Maria F., Sowrirajan, Lakshminarayanan, Paramanandam, Shanthi P., Shanmugavadivu, K, Sudharsanan, V, Seshadri, Suresh, Yupanqui-Fredes, Adhemir E., Hancco-Gomez, Mario, Apaza, Ronald, Persivale-Calle, Juan F., Quispe, Elizabeth, Leon-Ponce, Carlos, Villar-Gonzales, Victor, Andrade-Salas, Rebeca, Herrera, Jhon E., Ramos-Mamani, Luzdelia, Lopez, Yessica, Quiza, Giovanna, Hinojosa, Yadel, Gomez-Quispe, Madeluz, Frisancho-Parada, Gery, Mendoza-Apaza, Danielle I., Quispe-Flores, Luz R., Xavier, Niyitegeka F, Utfimana, Grace, Tuzayisenga, Elie, Nkurunziza, Valens, Checkley, William, Thompson, Lisa M, Hossen, Shakir, Nicolaou, Laura, Williams, Kendra N, Hartinger, Stella M, Chiang, Marilu, Balakrishnan, Kalpana, Garg, Sarada S, Thangavel, Gurusamy, Aravindalochanan, Vigneswari, Rosa, Ghislaine, Mukeshimana, Alexie, Ndagijimana, Florien, McCracken, John P, Diaz-Artiga, Anaité, Sinharoy, Sheela S, Waller, Lance, Wang, Jiantong, Jabbarzadeh, Shirin, Chen, Yunyun, Steenland, Kyle, Kirby, Miles A, Ramakrishnan, Usha, Johnson, Michael, Pillarisetti, Ajay, McCollum, Eric D, Craik, Rachel, Ohuma, Eric O, Dávila-Román, Victor G, de las Fuentes, Lisa, Simkovich, Suzanne M, Peel, Jennifer L, Clasen, Thomas F, and Papageorghiou, Aris T

Published
2024
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20. Coherence resonance in influencer networks

Author

Tönjes, Ralf, Fiore, Carlos E., and Pereira, Tiago

Subjects
Nonlinear Sciences - Adaptation and Self-Organizing Systems, Condensed Matter - Disordered Systems and Neural Networks, Physics - Physics and Society
Abstract

Complex networks are abundant in nature and many share an important structural property: they contain a few nodes that are abnormally highly connected (hubs). Some of these hubs are called influencers because they couple strongly to the network and play fundamental dynamical and structural roles. Strikingly, despite the abundance of networks with influencers, little is known about their response to stochastic forcing. Here, for oscillatory dynamics on influencer networks, we show that subjecting influencers to an optimal intensity of noise can result in enhanced network synchronization. This new network dynamical effect, which we call coherence resonance in influencer networks, emerges from a synergy between network structure and stochasticity and is highly nonlinear, vanishing when the noise is too weak or too strong. Our results reveal that the influencer backbone can sharply increase the dynamical response in complex systems of coupled oscillators., Comment: the arxiv submission includes supplementary notes. Fig.1 pdf repaired in current version

Published
2021
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21. Low-dimensional description for ensembles of identical phase oscillators subject to Cauchy noise

Author

Tönjes, Ralf and Pikovsky, Arkady

Subjects
Nonlinear Sciences - Adaptation and Self-Organizing Systems, Condensed Matter - Disordered Systems and Neural Networks
Abstract

We study an ensembles of globally coupled or forced identical phase oscillators subject to independent white Cauchy noise. We demonstrate, that if the oscillators are forced in several harmonics, stationary synchronous regimes can be exactly described with a finite number of complex order parameters. The corresponding distribution of phases is a product of wrapped Cauchy distributions. For sinusoidal forcing, the Ott-Antonsen low-dimensional reduction is recovered., Comment: 5 pages, 2 figures

Published
2020
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22. Transition to Synchrony in a Three-Dimensional Swarming Model with Helical Trajectories

Author

Zheng, Chunming, Toenjes, Ralf, and Pikovsky, Arkady

Subjects
Condensed Matter - Statistical Mechanics, Physics - Biological Physics
Abstract

We investigate the transition from incoherence to global collective motion in a three-dimensional swarming model of agents with helical trajectories, subject to noise and global coupling. Without noise this model was recently proposed as a generalization of the Kuramoto model and it was found that alignment of the velocities occurs discontinuously for arbitrarily small attractive coupling. Adding noise to the system resolves this singular limit and leads to a continuous transition, either to a directed collective motion or to center-of-mass rotations., Comment: 3 figures

Published
2020
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25. Coupled Moebius Maps as a Tool to Model Kuramoto Phase Synchronization

Author

Gong, Chen Chris, Toenjes, Ralf, and Pikovsky, Arkady

Subjects
Nonlinear Sciences - Adaptation and Self-Organizing Systems, Physics - Computational Physics
Abstract

We propose Moebius maps as a tool to model synchronization phenomena in coupled phase oscillators. Not only does the map provide fast computation of phase synchronization, it also reflects the underlying group structure of the sinusoidally coupled continuous phase dynamics. We study map versions of various known continuous-time collective dynamics, such as the synchronization transition in the Kuramoto-Sakaguchi model of non-identical oscillators, chimeras in two coupled populations of identical phase oscillators, and Kuramoto-Battogtokh chimeras on a ring, and demonstrate similarities and differences between the iterated map models and their known continuous-time counterparts., Comment: 13 pages, 4 figures

Published
2020
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26. Fasting indices of glucose-insulin-metabolism across life span and prediction of glycemic deterioration in children with obesity from new diagnostic cut-offs

Author

Hammel, Maximiliane Chiara, Stein, Robert, Kratzsch, Jürgen, Vogel, Mandy, Eckert, Alexander J., Triatin, Rima Destya, Colombo, Marco, Meigen, Christof, Baber, Ronny, Stanik, Juraj, Spielau, Ulrike, Stoltze, Anette, Wirkner, Kerstin, Tönjes, Anke, Snieder, Harold, Holl, Reinhard W., Stumvoll, Michael, Blüher, Matthias, Kiess, Wieland, and Körner, Antje

Published
2023
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27. Lung Ultrasound Protocol and Quality Control of Image Interpretation Using an Adjudication Panel in the Household Air Pollution Intervention Network (HAPIN) Trial

Author

Simkovich, Suzanne M., Hossen, Shakir, McCollum, Eric D., Toenjes, Ashley K., McCracken, John P., Thompson, Lisa M., Castañaza, Adly, Diaz, Anaite, Rosa, Ghislaine, Kirby, Miles A., Mukeshimana, Alexie, Myers, Rachel, Lenzen, Patricia M., Craik, Rachel, Jabbarzadeh, Shirin, Elon, Lisa, Garg, Sarada S., Balakrishnan, Kalpana, Thangavel, Gurusamy, Peel, Jennifer L., Clasen, Thomas F., Dávila-Román, Victor G., Papageorghiou, Aris T., de las Fuentes, Lisa, and Checkley, William

Published
2023
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28. Modelling of Resource-Aware Information Flows for Resource Constraint IoT Devices

Author

Fischer, Marten, Tönjes, Ralf, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, González-Vidal, Aurora, editor, Mohamed Abdelgawad, Ahmed, editor, Sabir, Essaid, editor, Ziegler, Sébastien, editor, and Ladid, Latif, editor

Published
2022
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30. Repulsively Coupled Kuramoto-Sakaguchi Phase Oscillators Ensemble Subject to Common Noise

Author

Gong, Chen Chris, Zheng, Chunming, Toenjes, Ralf, and Pikovsky, Arkady

Subjects
Condensed Matter - Statistical Mechanics, Nonlinear Sciences - Adaptation and Self-Organizing Systems, Nonlinear Sciences - Exactly Solvable and Integrable Systems
Abstract

We consider the Kuramoto-Sakaguchi model of identical coupled phase oscillators with a common noisy forcing. While common noise always tends to synchronize the oscillators, a strong repulsive coupling prevents the fully synchronous state and leads to a nontrivial distribution of oscillator phases. In previous numerical simulations, a formation of stable multicluster states has been observed in this regime. However we argue here, that because identical phase oscillators in the Kuramoto-Sakaguchi model form a partially integrable system according to the Watanabe-Strogatz theory, the formation of clusters is impossible. Integrating with various time steps reveals that clustering is a numerical artifact, explained by the existence of higher order Fourier terms in the errors of the employed numerical integration schemes. Monitoring the induced change in certain integrals of motion we quantify these errors. We support these observations by showing, on the basis of the analysis of the corresponding Fokker-Planck equation, that two-cluster states are non-attractive. On the other hand, in ensembles of general limit cycle oscillators, such as Van der Pol oscillators, due to an anharmonic phase response function, as well as additional amplitude dynamics, multiclusters can occur naturally., Comment: 10 pages, 14 figures

Published
2018
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37. SMUG1 regulates fat homeostasis leading to a fatty liver phenotype in mice

Author

Carracedo, Sergio, Lirussi, Lisa, Alsøe, Lene, Segers, Filip, Wang, Changliang, Bartosova, Zdenka, Bohov, Pavol, Tekin, Nuriye B., Kong, Xiang Yi, Esbensen, Q. Ying, Chen, Liang, Wennerström, Anna, Kroustallaki, Penelope, Ceolotto, Deborah, Tönjes, Anke, Berge, Rolf Kristian, Bruheim, Per, Wong, Garry, Böttcher, Yvonne, Halvorsen, Bente, and Nilsen, Hilde

Published
2022
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40. A multi-layer functional genomic analysis to understand noncoding genetic variation in lipids

Author

Ramdas, Shweta, Judd, Jonathan, Graham, Sarah E., Kanoni, Stavroula, Wang, Yuxuan, Surakka, Ida, Wenz, Brandon, Clarke, Shoa L., Chesi, Alessandra, Wells, Andrew, Bhatti, Konain Fatima, Vedantam, Sailaja, Winkler, Thomas W., Locke, Adam E., Marouli, Eirini, Zajac, Greg J.M., Wu, Kuan-Han H., Ntalla, Ioanna, Hui, Qin, Klarin, Derek, Hilliard, Austin T., Wang, Zeyuan, Xue, Chao, Thorleifsson, Gudmar, Helgadottir, Anna, Gudbjartsson, Daniel F., Holm, Hilma, Olafsson, Isleifur, Hwang, Mi Yeong, Han, Sohee, Akiyama, Masato, Sakaue, Saori, Terao, Chikashi, Kanai, Masahiro, Zhou, Wei, Brumpton, Ben M., Rasheed, Humaira, Havulinna, Aki S., Veturi, Yogasudha, Pacheco, Jennifer Allen, Rosenthal, Elisabeth A., Lingren, Todd, Feng, QiPing, Kullo, Iftikhar J., Narita, Akira, Takayama, Jun, Martin, Hilary C., Hunt, Karen A., Trivedi, Bhavi, Haessler, Jeffrey, Giulianini, Franco, Bradford, Yuki, Miller, Jason E., Campbell, Archie, Lin, Kuang, Millwood, Iona Y., Rasheed, Asif, Hindy, George, Faul, Jessica D., Zhao, Wei, Weir, David R., Turman, Constance, Huang, Hongyan, Graff, Mariaelisa, Choudhury, Ananyo, Sengupta, Dhriti, Mahajan, Anubha, Brown, Michael R., Zhang, Weihua, Yu, Ketian, Schmidt, Ellen M., Pandit, Anita, Gustafsson, Stefan, Yin, Xianyong, Luan, Jian’an, Zhao, Jing-Hua, Matsuda, Fumihiko, Jang, Hye-Mi, Yoon, Kyungheon, Medina-Gomez, Carolina, Pitsillides, Achilleas, Hottenga, Jouke Jan, Wood, Andrew R., Ji, Yingji, Gao, Zishan, Haworth, Simon, Mitchell, Ruth E., Chai, Jin Fang, Aadahl, Mette, Bjerregaard, Anne A., Yao, Jie, Manichaikul, Ani, Lee, Wen-Jane, Hsiung, Chao Agnes, Warren, Helen R., Ramirez, Julia, Bork-Jensen, Jette, Kårhus, Line L., Goel, Anuj, Sabater-Lleal, Maria, Noordam, Raymond, Mauro, Pala, Matteo, Floris, McDaid, Aaron F., Marques-Vidal, Pedro, Wielscher, Matthias, Trompet, Stella, Sattar, Naveed, Møllehave, Line T., Munz, Matthias, Zeng, Lingyao, Huang, Jianfeng, Yang, Bin, Poveda, Alaitz, Kurbasic, Azra, Schönherr, Sebastian, Forer, Lukas, Scholz, Markus, Galesloot, Tessel E., Bradfield, Jonathan P., Ruotsalainen, Sanni E., Daw, E. Warwick, Zmuda, Joseph M., Mitchell, Jonathan S., Fuchsberger, Christian, Christensen, Henry, Brody, Jennifer A., Le, Phuong, Feitosa, Mary F., Wojczynski, Mary K., Hemerich, Daiane, Preuss, Michael, Mangino, Massimo, Christofidou, Paraskevi, Verweij, Niek, Benjamins, Jan W., Engmann, Jorgen, Noah, Tsao L., Verma, Anurag, Slieker, Roderick C., Lo, Ken Sin, Zilhao, Nuno R., Kleber, Marcus E., Delgado, Graciela E., Huo, Shaofeng, Ikeda, Daisuke D., Iha, Hiroyuki, Yang, Jian, Liu, Jun, Demirkan, Ayşe, Leonard, Hampton L., Marten, Jonathan, Emmel, Carina, Schmidt, Börge, Smyth, Laura J., Cañadas-Garre, Marisa, Wang, Chaolong, Nakatochi, Masahiro, Wong, Andrew, Hutri-Kähönen, Nina, Sim, Xueling, Xia, Rui, Huerta-Chagoya, Alicia, Fernandez-Lopez, Juan Carlos, Lyssenko, Valeriya, Nongmaithem, Suraj S., Sankareswaran, Alagu, Irvin, Marguerite R., Oldmeadow, Christopher, Kim, Han-Na, Ryu, Seungho, Timmers, Paul R.H.J., Arbeeva, Liubov, Dorajoo, Rajkumar, Lange, Leslie A., Prasad, Gauri, Lorés-Motta, Laura, Pauper, Marc, Long, Jirong, Li, Xiaohui, Theusch, Elizabeth, Takeuchi, Fumihiko, Spracklen, Cassandra N., Loukola, Anu, Bollepalli, Sailalitha, Warner, Sophie C., Wang, Ya Xing, Wei, Wen B., Nutile, Teresa, Ruggiero, Daniela, Sung, Yun Ju, Chen, Shufeng, Liu, Fangchao, Yang, Jingyun, Kentistou, Katherine A., Banas, Bernhard, Morgan, Anna, Meidtner, Karina, Bielak, Lawrence F., Smith, Jennifer A., Hebbar, Prashantha, Farmaki, Aliki-Eleni, Hofer, Edith, Lin, Maoxuan, Concas, Maria Pina, Vaccargiu, Simona, van der Most, Peter J., Pitkänen, Niina, Cade, Brian E., van der Laan, Sander W., Chitrala, Kumaraswamy Naidu, Weiss, Stefan, Bentley, Amy R., Doumatey, Ayo P., Adeyemo, Adebowale A., Lee, Jong Young, Petersen, Eva R.B., Nielsen, Aneta A., Choi, Hyeok Sun, Nethander, Maria, Freitag-Wolf, Sandra, Southam, Lorraine, Rayner, Nigel W., Wang, Carol A., Lin, Shih-Yi, Wang, Jun-Sing, Couture, Christian, Lyytikäinen, Leo-Pekka, Nikus, Kjell, Cuellar-Partida, Gabriel, Vestergaard, Henrik, Hidalgo, Bertha, Giannakopoulou, Olga, Cai, Qiuyin, Obura, Morgan O., van Setten, Jessica, He, Karen Y., Tang, Hua, Terzikhan, Natalie, Shin, Jae Hun, Jackson, Rebecca D., Reiner, Alexander P., Martin, Lisa Warsinger, Chen, Zhengming, Li, Liming, Kawaguchi, Takahisa, Thiery, Joachim, Bis, Joshua C., Launer, Lenore J., Li, Huaixing, Nalls, Mike A., Raitakari, Olli T., Ichihara, Sahoko, Wild, Sarah H., Nelson, Christopher P., Campbell, Harry, Jäger, Susanne, Nabika, Toru, Al-Mulla, Fahd, Niinikoski, Harri, Braund, Peter S., Kolcic, Ivana, Kovacs, Peter, Giardoglou, Tota, Katsuya, Tomohiro, de Kleijn, Dominique, de Borst, Gert J., Kim, Eung Kweon, Adams, Hieab H.H., Ikram, M. Arfan, Zhu, Xiaofeng, Asselbergs, Folkert W., Kraaijeveld, Adriaan O., Beulens, Joline W.J., Shu, Xiao-Ou, Rallidis, Loukianos S., Pedersen, Oluf, Hansen, Torben, Mitchell, Paul, Hewitt, Alex W., Kähönen, Mika, Pérusse, Louis, Bouchard, Claude, Tönjes, Anke, Ida Chen, Yii-Der, Pennell, Craig E., Mori, Trevor A., Lieb, Wolfgang, Franke, Andre, Ohlsson, Claes, Mellström, Dan, Cho, Yoon Shin, Lee, Hyejin, Yuan, Jian-Min, Koh, Woon-Puay, Rhee, Sang Youl, Woo, Jeong-Taek, Heid, Iris M., Stark, Klaus J., Zimmermann, Martina E., Völzke, Henry, Homuth, Georg, Evans, Michele K., Zonderman, Alan B., Polasek, Ozren, Pasterkamp, Gerard, Hoefer, Imo E., Redline, Susan, Pahkala, Katja, Oldehinkel, Albertine J., Snieder, Harold, Biino, Ginevra, Schmidt, Reinhold, Schmidt, Helena, Bandinelli, Stefania, Dedoussis, George, Thanaraj, Thangavel Alphonse, Peyser, Patricia A., Kato, Norihiro, Schulze, Matthias B., Girotto, Giorgia, Böger, Carsten A., Jung, Bettina, Joshi, Peter K., Bennett, David A., De Jager, Philip L., Lu, Xiangfeng, Mamakou, Vasiliki, Brown, Morris, Caulfield, Mark J., Munroe, Patricia B., Guo, Xiuqing, Ciullo, Marina, Jonas, Jost B., Samani, Nilesh J., Kaprio, Jaakko, Pajukanta, Päivi, Tusié-Luna, Teresa, Aguilar-Salinas, Carlos A., Adair, Linda S., Bechayda, Sonny Augustin, de Silva, H. Janaka, Wickremasinghe, Ananda R., Krauss, Ronald M., Wu, Jer-Yuarn, Zheng, Wei, den Hollander, Anneke I., Bharadwaj, Dwaipayan, Correa, Adolfo, Wilson, James G., Lind, Lars, Heng, Chew-Kiat, Nelson, Amanda E., Golightly, Yvonne M., Wilson, James F., Penninx, Brenda, Kim, Hyung-Lae, Attia, John, Scott, Rodney J., Rao, D.C., Arnett, Donna K., Walker, Mark, Scott, Laura J., Koistinen, Heikki A., Chandak, Giriraj R., Mercader, Josep M., Villalpando, Clicerio Gonzalez, Orozco, Lorena, Fornage, Myriam, Tai, E. Shyong, van Dam, Rob M., Lehtimäki, Terho, Chaturvedi, Nish, Yokota, Mitsuhiro, Liu, Jianjun, Reilly, Dermot F., McKnight, Amy Jayne, Kee, Frank, Jöckel, Karl-Heinz, McCarthy, Mark I., Palmer, Colin N.A., Vitart, Veronique, Hayward, Caroline, Simonsick, Eleanor, van Duijn, Cornelia M., Jin, Zi-Bing, Lu, Fan, Hishigaki, Haretsugu, Lin, Xu, März, Winfried, Gudnason, Vilmundur, Tardif, Jean-Claude, Lettre, Guillaume, t Hart, Leen M., Elders, Petra J.M., Rader, Daniel J., Damrauer, Scott M., Kumari, Meena, Kivimaki, Mika, van der Harst, Pim, Spector, Tim D., Loos, Ruth J.F., Province, Michael A., Parra, Esteban J., Cruz, Miguel, Psaty, Bruce M., Brandslund, Ivan, Pramstaller, Peter P., Rotimi, Charles N., Christensen, Kaare, Ripatti, Samuli, Widén, Elisabeth, Hakonarson, Hakon, Grant, Struan F.A., Kiemeney, Lambertus, de Graaf, Jacqueline, Loeffler, Markus, Kronenberg, Florian, Gu, Dongfeng, Erdmann, Jeanette, Schunkert, Heribert, Franks, Paul W., Linneberg, Allan, Jukema, J. Wouter, Khera, Amit V., Männikkö, Minna, Jarvelin, Marjo-Riitta, Kutalik, Zoltan, Francesco, Cucca, Mook-Kanamori, Dennis O., Willems van Dijk, Ko, Watkins, Hugh, Strachan, David P., Grarup, Niels, Sever, Peter, Poulter, Neil, Huey-Herng Sheu, Wayne, Rotter, Jerome I., Dantoft, Thomas M., Karpe, Fredrik, Neville, Matt J., Timpson, Nicholas J., Cheng, Ching-Yu, Wong, Tien-Yin, Khor, Chiea Chuen, Li, Hengtong, Sabanayagam, Charumathi, Peters, Annette, Gieger, Christian, Hattersley, Andrew T., Pedersen, Nancy L., Magnusson, Patrik K.E., Boomsma, Dorret I., de Geus, Eco J.C., Cupples, L. Adrienne, van Meurs, Joyce B.J., Ikram, Arfan, Ghanbari, Mohsen, Gordon-Larsen, Penny, Huang, Wei, Kim, Young Jin, Tabara, Yasuharu, Wareham, Nicholas J., Langenberg, Claudia, Zeggini, Eleftheria, Tuomilehto, Jaakko, Kuusisto, Johanna, Laakso, Markku, Ingelsson, Erik, Abecasis, Goncalo, Chambers, John C., Kooner, Jaspal S., de Vries, Paul S., Morrison, Alanna C., Hazelhurst, Scott, Ramsay, Michèle, North, Kari E., Daviglus, Martha, Kraft, Peter, Martin, Nicholas G., Whitfield, John B., Abbas, Shahid, Saleheen, Danish, Walters, Robin G., Holmes, Michael V., Black, Corri, Smith, Blair H., Baras, Aris, Justice, Anne E., Buring, Julie E., Ridker, Paul M., Chasman, Daniel I., Kooperberg, Charles, Tamiya, Gen, Yamamoto, Masayuki, van Heel, David A., Trembath, Richard C., Wei, Wei-Qi, Jarvik, Gail P., Namjou, Bahram, Hayes, M. Geoffrey, Ritchie, Marylyn D., Jousilahti, Pekka, Salomaa, Veikko, Hveem, Kristian, Åsvold, Bjørn Olav, Kubo, Michiaki, Kamatani, Yoichiro, Okada, Yukinori, Murakami, Yoshinori, Kim, Bong-Jo, Thorsteinsdottir, Unnur, Stefansson, Kari, Zhang, Jifeng, Chen, Y. Eugene, Ho, Yuk-Lam, Lynch, Julie A., Tsao, Philip S., Chang, Kyong-Mi, Cho, Kelly, O'Donnell, Christopher J., Gaziano, John M., Wilson, Peter, Mohlke, Karen L., Frayling, Timothy M., Hirschhorn, Joel N., Kathiresan, Sekar, Boehnke, Michael, Struan Grant, Natarajan, Pradeep, Sun, Yan V., Morris, Andrew P., Deloukas, Panos, Peloso, Gina, Assimes, Themistocles L., Willer, Cristen J., Zhu, Xiang, and Brown, Christopher D.

Published
2022
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42. Phase and frequency linear response theory for hyperbolic chaotic oscillators

Author

Tönjes, Ralf and Kori, Hiroshi

Subjects
Nonlinear Sciences - Chaotic Dynamics, Mathematical Physics
Abstract

We formulate a linear phase and frequency response theory for hyperbolic flows, which generalizes phase response theory for autonomous limit cycle oscillators to hyperbolic chaotic dynamics. The theory is based on a shadowing conjecture, stating the existence of a perturbed trajectory shadowing every unperturbed trajectory on the system attractor for any small enough perturbation of arbitrary duration and a corresponding unique time isomorphism, which we identify as phase, such that phase shifts between the unperturbed trajectory and its perturbed shadow are well defined. The phase sensitivity function is the solution of an adjoint linear equation and can be used to estimate the average change of phase velocity to small time dependent or independent perturbations. These changes of frequency are experimentally accessible giving a convenient way to define and measure phase response curves for chaotic oscillators. The shadowing trajectory and the phase can be constructed explicitly in the tangent space of an unperturbed trajectory using co-variant Lyapunov vectors. It can also be used to identify the limits of the regime of linear response., Comment: 11 pages, 7 figures

Published
2017
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44. Resilient Process Modeling and Execution Using Process Graphs

Author

Nordemann, Frank, Tönjes, Ralf, Pulvermüller, Elke, Tapken, Heiko, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Ali, Raian, editor, Kaindl, Hermann, editor, and Maciaszek, Leszek A., editor

Published
2021
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46. LPG stove and fuel intervention among pregnant women reduce fine particle air pollution exposures in three countries: Pilot results from the HAPIN trial

Author

Aravindalochanan, Vigneswari, Bankundiye, Gloriose, Barr, Dana Boyd, Bussalleu, Alejandra, Canuz, Eduardo, Castañaza, Adly, Chen, Yunyun, Chiang, Marilú, Craik, Rachel, Davila-Roman, Victor G., de las Fuentes, Lisa, Elon, Lisa, Espinoza, Juan Gabriel, Garg, Sarada, Hamid, Sarah, Hartinger, Stella, Harvey, Steven A., Hengstermann, Mayari, Hennessee, Ian, Herrera, Phabiola M., Hossen, Shakir, Howards, Penelope P., Jaacks, Lindsay, Jabbarzadeh, Shirin, Lenzen, Pattie, Lovvorn, Amy E., Mbabazi, Jane, McCollum, Eric, Meyers, Rachel, Moulton, Lawrence, Mukeshimana, Alexie, Mutariyani, Bernard, Natesan, Durairaj, Nizam, Azhar, Ntivuguruzwa, Jean de Dieu, Papageorghiou, Aris, Puttaswamy, Naveen, Puzzolo, Elisa, Quinn, Ashlinn, Rajamani, Karthikeyan Dharmapuri, Ramakrishnan, Usha, Ramasami, Rengaraj, Ramirez, Alexander, Ryan, P. Barry, Saidam, Sudhakar, Sarnat, Jeremy A., Simkovich, Suzanne, Sinharoy, Sheela S., Smith, Kirk R., Swearing, Damien, Thangavel, Gurusamy, Toenjes, Ashley, Valdes, Viviane, Williams, Kendra N., Ye, Wenlu, Young, Bonnie N., Liao, Jiawen, Kirby, Miles A., Pillarisetti, Ajay, Piedrahita, Ricardo, Balakrishnan, Kalpana, Sambandam, Sankar, Mukhopadhyay, Krishnendu, Rosa, Ghislaine, Majorin, Fiona, Dusabimana, Ephrem, Ndagijimana, Florien, McCracken, John P., Mollinedo, Erick, de Leon, Oscar, Díaz-Artiga, Anaité, Thompson, Lisa M., Kearns, Katherine A., Naeher, Luke, Rosenthal, Joshua, Clark, Maggie L., Steenland, Kyle, Waller, Lance A., Checkley, William, Peel, Jennifer L., Clasen, Thomas, and Johnson, Michael

Published
2021
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49. Ultrasound Core Laboratory for the Household Air Pollution Intervention Network Trial: Standardized Training and Image Management for Field Studies Using Portable Ultrasound in Fetal, Lung, and Vascular Evaluations

Author

Dávila-Román, Víctor G., Toenjes, Ashley K., Meyers, Rachel M., Lenzen, Pattie M., Simkovich, Suzanne M., Herrera, Phabiola, Fung, Elizabeth, Papageorghiou, Aris T., Craik, Rachel, McCracken, John P., Thompson, Lisa M., Balakrishnan, Kalpana, Rosa, Ghislaine, Peel, Jennifer, Clasen, Thomas F., Hossen, Shakir, Checkley, William, and Fuentes, Lisa de las

Published
2021
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