scholarly journals Charlotte Froese Fischer—Her Work and Her Impact

Atoms ◽  
2019 ◽  
Vol 7 (4) ◽  
pp. 107
Author(s):  
Alan Hibbert
Keyword(s):  
Atomic Structure ◽  
Large Scale ◽  
Computer Programs ◽  
Research Community ◽  
Structure Theory ◽  
90Th Birthday ◽  
The Impact ◽  
Insight Into

Charlotte Froese Fischer has been at the forefront of research in atomic structure theory for over 60 years. She has developed many of the methods currently used by researchers and has written associated computer programs which have been published and hence made accessible to the research community. Throughout her career, she has consistently encouraged and mentored young scientists, enabling them to embark on independent careers of their own. This article provides an overview of the methods and codes she has developed, some large-scale calculations she has undertaken, and some insight into the impact she has had on young scientists, and the leadership she continues to show as she reaches her 90th birthday.

scholarly journals Audio Mining: The Role of Vocal Tone in Persuasion

2021 ◽  
Author(s):  
Xin (Shane) Wang ◽  
Shijie Lu ◽  
X I Li ◽  
Mansur Khamitov ◽  
Neil Bendle
Keyword(s):  
Empirical Study ◽  
Large Scale ◽  
Controlled Experiments ◽  
The Core ◽  
Content Model ◽  
Stereotype Content ◽  
Key Indicators ◽  
The Impact ◽  
Insight Into

Abstract Persuasion success is often related to hard-to-measure characteristics, such as the way the persuader speaks. To examine how vocal tones impact persuasion in an online appeal, this research measures persuaders’ vocal tones in Kickstarter video pitches using novel audio mining technology. Connecting vocal tone dimensions with real-world funding outcomes offers insight into the impact of vocal tones on receivers’ actions. The core hypothesis of this paper is that a successful persuasion attempt is associated with vocal tones denoting (1) focus, (2) low stress, and (3) stable emotions. These three vocal tone dimensions—which are in line with the stereotype content model—matter because they allow receivers to make inferences about a persuader’s competence. The hypotheses are tested with a large-scale empirical study using Kickstarter data, which is then replicated in a different category. In addition, two controlled experiments provide evidence that perceptions of competence mediate the impact of the three vocal tones on persuasion attempt success. The results identify key indicators of persuasion attempt success and suggest a greater role for audio mining in academic consumer research.

CAN INFRASTRUCTURE DEVELOPMENT ALLEVIATE MULTIDIMENSIONAL POVERTY? — EVIDENCE FROM CHINA

2021 ◽  
pp. 1-34
Author(s):  
YONGBO GE ◽  
YUEXIAO ZHU ◽  
WENQIANG ZHANG ◽  
XIAORAN KONG
Keyword(s):  
Poverty Alleviation ◽  
Capital Accumulation ◽  
High Speed ◽  
Large Scale ◽  
Multidimensional Poverty ◽  
Infrastructure Development ◽  
Public Infrastructure ◽  
Regional Heterogeneity ◽  
The Impact ◽  
Insight Into

We investigate the impact of the construction of large-scale high-speed railways (HSRs) on regional multidimensional poverty in China. We find that the opening of HSRs can reduce this poverty indicator. This association is robust to a series of checks. Regarding the mechanisms, the opening of HSRs can improve regional accessibility, enhance local tourism, increase labor mobility and promote human capital accumulation, which alleviates multidimensional poverty. Further research indicates the regional heterogeneity of the effect. This research supplements poverty alleviation theory from the perspective of public infrastructure and offers insight into how multidimensional poverty arises and how it can be alleviated.

Insight into the atomic structure of Li2MnO3 in Li-rich Mn-based cathode materials and the impact of its atomic arrangement on electrochemical performance

2017 ◽  
Vol 5 (22) ◽  
pp. 11214-11223 ◽  
Author(s):  
Yuanzhe Song ◽  
Xuebing Zhao ◽  
Chao Wang ◽  
Han Bi ◽  
Jie Zhang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Crystal Lattice ◽  
Atomic Structure ◽  
Cathode Materials ◽  
Atomic Arrangement ◽  
Local Heterogeneity ◽  
The Impact ◽  
First Time ◽  
Insight Into

Local heterogeneity in crystal lattice is directly observed in synthesized Li2MnO3/LiMO2 (M = Ni, Mn) cathode materials. With SAED application, for the first time, we accordingly uncover that the lattice heterogeneity is induced by different Li2MnO3 atomic arrangements coexisting in same crystal domain.

scholarly journals The timing of one-shot interventions for epidemic control

2020 ◽  
Author(s):  
Francesco Di Lauro ◽  
István Z. Kiss ◽  
Joel C. Miller
Keyword(s):  
Large Scale ◽  
Short Term ◽  
Early Success ◽  
Large Peak ◽  
Two Peaks ◽  
The Impact ◽  
Insight Into ◽  
Policy Question ◽  
Comparable Size

AbstractThe apparent early success in China’s large-scale intervention to control the COVID-19 epidemic has led to interest in whether other countries can replicate it as well as concerns about a resurgence of the epidemic if or when China relaxes the interventions. In this paper we look at the impact of a single short-term intervention on an epidemic. We see that if an intervention cannot be sustained long-term, it has the greatest impact if it is imposed once infection levels have become large enough that there is an appreciable number of infections present. For minimising the total number infected it should start close to the peak so that there is no rebound once the intervention is stopped, while to minimise the peak prevalence, it should start earlier, allowing two peaks of comparable size rather than one very large peak. In populations with distinct subgroups, synchronized interventions are less effective than targeting the interventions in each sub-population separately.We do not attempt to clearly determine what makes an intervention sustainable or not. We believe that is a policy question. If an intervention is sustainable, it should be kept in place. Our intent is to offer insight into how best to time an intervention whose impact on society is too great to maintain.

scholarly journals Network analysis to evaluate the impact of research funding on research community consolidation

2019 ◽  
Author(s):  
Daniel J. Hicks ◽  
David Coil ◽  
Carl G. Stahmer ◽  
Jonathan A. Eisen
Keyword(s):  
Network Analysis ◽  
Research Funding ◽  
Large Scale ◽  
Research Community ◽  
Collaboration Networks ◽  
Sloan Foundation ◽  
Funding Programs ◽  
Community Of Researchers ◽  
New Research ◽  
The Impact

AbstractIn 2004, the Alfred P. Sloan Foundation launched a new program focused on incubating a new field, “Microbiology of the Built Environment” (MoBE). By the end of 2017, the program had supported the publication of hundreds of scholarly works, but it was unclear to what extent it had stimulated the development of a new research community. We identified 307 works funded by the MoBE program, as well as a comparison set of 698 authors who published in the same journals during the same period of time but were not part of the Sloan Foundation-funded collaboration. Our analysis of collaboration networks for both groups of authors suggests that the Sloan Foundation’s program resulted in a more consolidated community of researchers, specifically in terms of number of components, diameter, density, and transitivity of the coauthor networks. In addition to highlighting the success of this particular program, our method could be applied to other fields to examine the impact of funding programs and other large-scale initiatives on the formation of research communities.

scholarly journals To Permit or Not to Permit, That is the Usability Question: Crowdsourcing Mobile Apps’ Privacy Permission Settings

2017 ◽  
Vol 2017 (4) ◽  
pp. 119-137 ◽  
Author(s):  
Qatrunnada Ismail ◽  
Tousif Ahmed ◽  
Kelly Caine ◽  
Apu Kapadia ◽  
Michael Reiter
Keyword(s):  
Large Scale ◽  
Previous Analysis ◽  
Mobile Apps ◽  
User Testing ◽  
User Privacy ◽  
Sensitive Data ◽  
Contact Information ◽  
The Impact ◽  
User Experiment ◽  
Insight Into

Abstract Millions of apps available to smartphone owners request various permissions to resources on the devices including sensitive data such as location and contact information. Disabling permissions for sensitive resources could improve privacy but can also impact the usability of apps in ways users may not be able to predict. We study an efficient approach that ascertains the impact of disabling permissions on the usability of apps through large-scale, crowdsourced user testing with the ultimate goal of making recommendations to users about which permissions can be disabled for improved privacy without sacrificing usability. We replicate and significantly extend previous analysis that showed the promise of a crowdsourcing approach where crowd workers test and report back on various configurations of an app. Through a large, between-subjects user experiment, our work provides insight into the impact of removing permissions within and across different apps (our participants tested three apps: Facebook Messenger (N=218), Instagram (N=227), and Twitter (N=110)). We study the impact of removing various permissions within and across apps, and we discover that it is possible to increase user privacy by disabling app permissions while also maintaining app usability.

Burning Planet

2018 ◽  
Author(s):  
Andrew C. Scott
Keyword(s):  
Climate Change ◽  
Large Scale ◽  
Flowering Plants ◽  
Mass Extinctions ◽  
Animal Life ◽  
Early Hominids ◽  
The World ◽  
Life On Earth ◽  
The Impact ◽  
Insight Into

Raging wildfires have devastated vast areas of California and Australia in recent years, and predictions are that we will see more of the same in coming years as a result of climate change. But this is nothing new. Since the dawn of life on land, large-scale fires have played their part in shaping life on Earth. Andrew C. Scott tells the whole story of fire's impact on our planet's atmosphere, climate, vegetation, ecology, and the evolution of plant and animal life. It has caused mass extinctions, and it has propelled the spread of flowering plants. The exciting evidence we can now draw on has been preserved in fossilized charcoal, found in rocks hundreds of millions of years old, from all over the world. These reveal incredibly fine details of prehistoric plants, and tell us about climates from deep in earth's history. They also give us insight into how early hominids and humans tamed fire and used it. Looking at the impact of wildfires in our own time, Scott also looks forward to how we might better manage them in future, as climate change has an increasing effect on our world.

scholarly journals Transport under advective trapping

2020 ◽  
Author(s):  
Juan J. Hidalgo ◽  
Insa Neuweiler ◽  
Marco Dentz
Keyword(s):  
Large Scale ◽  
Heterogeneous Media ◽  
Mathematical Formulation ◽  
Breakthrough Curves ◽  
Low Velocity ◽  
Spatial Geometry ◽  
The Impact ◽  
And Diffusion ◽  
Insight Into ◽  
Velocity Zone

<p>Advective trapping occurs when solutes enter a low velocity zone in the porous medium. Current multirate mass transfer (MRMT) models consider slow advection and diffusion but do not separate these processes, which makes parameterization difficult. Here we investigate the impact of advective trapping on transport in media consisting of isolated low permeability inclusions. Breakthrough curves show that effective transport changes from a streamtube model to genuine MRMT as the degree of disorder of the inclusion arrangement increases. We discuss the mathematical formulation in the MRMT and CTRW frameworks and the impact of the spatial geometry on the ergodicity and stationarity of large scale transport. These finding give new insight into transport into transport in highly heterogeneous media.</p>

Water bouncing robots: a first step toward large-scale water running robots

Robotica ◽  
2014 ◽  
Vol 34 (7) ◽  
pp. 1659-1676 ◽  
Author(s):  
Paolo Gallina ◽  
Gabriele Bulian ◽  
Giovanni Mosetti
Keyword(s):  
Dynamic Simulation ◽  
General Framework ◽  
Large Scale ◽  
Impact Force ◽  
Standing Position ◽  
Water Entry ◽  
The Impact ◽  
Running Robots ◽  
Insight Into ◽  
Water Exit

SUMMARYRobots running on water have attracted the attention of researchers in the last decades as an alternative to conventional aquatic propulsion mechanisms. Up to now, a large scale robot capable of running on water has not been realized. Bouncing on water is a prerequisite for running on water. For this reason, the development of a water bouncing robot represents a necessary first step. The paper presents the model of a 2-degree-of-freedom water bouncing robot inspired by the pogo-stick, a device for jumping off the ground in a standing position. An analytical model of the impact force between “robot's foot” and water is provided for both water-entry and water-exit phases. Such a model has been integrated in a dynamic simulation of whole robot. The model represents a useful and general framework to gain an insight into the parameters that characterize the efficiency of robot.

scholarly journals SARS-CoV-2 transmission dynamics in Belarus revealed by genomic and incidence data analysis

2021 ◽  
Author(s):  
Alina Nemira ◽  
Ayotomiwa Ezekiel Adeniyi ◽  
Elena Gasich ◽  
Kirill Bulda ◽  
Leonid Valentovich ◽  
...  
Keyword(s):  
Large Scale ◽  
Reproductive Number ◽  
Genomic Epidemiology ◽  
Incidence Data ◽  
Moderate Reduction ◽  
Health Authorities ◽  
Public Health Authorities ◽  
The Impact ◽  
Phylodynamic Analysis ◽  
Insight Into

Since the emergence of COVID-19, a series of non-pharmaceutical interventions (NPIs) has been implemented by governments and public health authorities worldwide to control and curb the ongoing pandemic spread. From that perspective, Belarus is one of a few countries with a relatively modern healthcare system, where much narrower NPIs have been put in place. Given the uniqueness of this Belarusian experience, the understanding its COVID-19 epidemiological dynamics is essential not only for the local assessment, but also for a better insight into the impact of different NPI strategies globally. In this work, we integrate genomic epidemiology and surveillance methods to investigate the emergence and spread of SARS-CoV-2 in the country. The observed Belarusian SARS-CoV-2 genetic diversity originated from at least eighteen separate introductions, at least five of which resulted in ongoing domestic transmissions. The introduction sources represent a wide variety of regions, although the proportion of regional virus introductions and exports from/to geographical neighbors appears to be higher than for other European countries. Phylodynamic analysis indicates a moderate reduction in the effective reproductive number R_e after the introduction of limited NPIs, with the reduction magnitude generally being lower than for countries with large-scale NPIs. On the other hand, the estimate of the Belarusian R_e at the early epidemic stage is comparable with this number for the neighboring ex-USSR country of Ukraine, where much broader NPIs have been implemented. The actual number of cases by the end of May, 2020 was predicted to be 2-9 times higher than the detected number of cases.

Sign in / Sign up

Export Citation Format

Share Document