cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Involvement in research of European radiology trainees: an International survey investigating trainees' perceptions, attitudes, and research productivity
Creators: name: Vernuccio, Federica
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Multicentre study
subject: Cross-sectional study
subject: Prospective
subject: Education and training
subject: Education
subject: Experimental
subject: Professional issues
subject: Hybrid, Molecular and Translational Imaging

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Historically, involvement of radiology trainees in research activities during their core training has not been high. In 1989 Hillman BJ et al warned that “the future of radiology was threatened by the paucity of competent researchers who are...
Evaluating Ecological Sustainability For The Planning and Operations Of Storage Technologies
Creators: name: Braun, Philipp
name: Rose, Hendrik
name: Hesslein, Niklas
name: Vadapalli, Harsha
name: Hinckeldeyn, Johannes
name: Kreutzfeldt, Jochen
Publisher: name: Hannover : publish-Ing.
Year: 2023
Subjects: subject: Konferenzschrift
subject: Warehouse planning
subject: Ecological sustainability
subject: Storage technology
subject: Carbon emissions
subject: Logistics
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: With an expected future increase of costs for carbon emissions the logistics industry is targeting to design sustainable warehouses to reduce their carbon footprints. To do so, it is required that every aspect of a warehouse from its general design to the transport processes and technologies must be assessed in terms of its carbon footprint. In this article the carbon footprint, which can be traced back to the storage technology employed within a storage area is analysed. The approach includes surface, material, and technology-related data to calculate the carbon footprint of a logistics concept. Firstly, different dimensions of storage technology carbon footprints are identified. A comprehen-sive model is provided to calculate the carbon footprint of alternative storage technologies in a warehouse. The model is applied in a case study with actual data from a warehouse planning project in the German production industry comparing three alternative storage technologies for a small part storage solution. The author's find highest carbon footprint in the application of an autonomous guided vehicle shelving system compared to automatic storage and retrieval system and manual storage solution using Kanban racks.
title: Peritoneal carcinomatosis: “systematic review” of the abdomen to improve diagnostic sensibility
Creators: name: Landolfi, Federica
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Retrospective
subject: Metastases
subject: Radiation therapy / Oncology
subject: CT
subject: Oncology
subject: Abdomen
subject: Oncologic Imaging
subject: Performed at one institution
subject: Oncologic Imaging

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Metastatic disease, more often from carcinomas of gastrointestinal tract but also from ovary, breast and lung, is the most common malignant process in the peritoneal cavity. The complex anatomy of peritoneal structures and the circulatory pattern of...
title: Furthering perspectives: anthropological views of the world, vol. 10, 2021
title: Furthering perspectives
titleType: AlternativeTitle
Creators: name: Anthropology Graduate Student Society, Colorado State University
Publisher: name: Mountain Scholar
Year: 2021

description: Includes bibliographical references.
description: Spring 2021.
description: Feminism on the Frontier: the Materialization of Elizabeth Street in Fort Collins / Grace Ellis -- The Inclusion of Multiple Perspectives: Applying the Sustainability Science Framework to Study Climate Change in Arctic Indigenous Communities / Carly DeSanto -- The Functionality of Desert Kites: An Ethnoarchaeological Study of the Desert Kite Phenomenon in the Levant / Wyatt Benson -- Geoarchaeological Methods And The Intentionality of Neanderthal Burial / Mary Shirley Mitchell -- An Old Sugar Factory, New Graffiti, and Longmont's Sense of Place / Morgan Lundy -- Midwifery in Scotland: Cultural Historic & Critical Medical Anthropology Perspectives / Olivia Garl.
Development Of A Digital Planning Tool For Dimensioning And Investment Cost Calculation In An Early Factory Planning Phase
Creators: name: Rieke, Leonard
name: Heinen, Tobias
name: Cevirgen, Cihan
name: Laßmann, Finn
name: Nyhuis, Peter
Publisher: name: Hannover : publish-Ing.
Year: 2023
Subjects: subject: Konferenzschrift
subject: Digital Planning Tool
subject: Factory Planning
subject: Dimensioning
subject: Investment Cost Calculation
subject: Feasibility Study
subject: Early Planning Phase
subject: Uncertainty
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: As an interdisciplinary task, factory planning represents a key factor for logistics, supply chain and ultimately, the economic success of companies in the manufacturing sector. In factory planning projects, the focus is on the early planning phase, where costs and the associated misinvestments can still be significantly influenced. The challenge lies in the early valid dimensioning of the planned factory despite fuzzy data to provide decision-making support regarding the investment costs. In this context, this article presents the development of a digital service and planning tool based on a scientific procedure model. For this purpose, the research needs are first derived, reference is made to a scientific procedure model and the requirements analysis for the tool is presented. The tool developed on this basis aims to dimension and economically assess planned factories at an early planning stage. In this way, decision-makers in companies will be provided with data-based results to make future-oriented decisions between different project scenarios.
Multi-layer flows with yield stress fluids
Creators: name: Hormozi, Sarah
Publisher: name: University of British Columbia
Year: 2011

description: Interfacial instabilities of multi-layer shear flows may be eliminated by astute positioning of yield stress fluid layers that remain unyielded at the interface(s). The contribution of this thesis comes in three parts. Firstly, we have performed a computational study of these flows in the setting of a Newtonian core fluid surrounded by a Bingham lubricating fluid, within pipe and channel configurations. The simulations include an inlet geometry in the computational model and study the multi-layer flows, both as the fluids are initially injected (start up) and later the established steady flows (development lengths). Nonlinear perturbations are also studied, showing in particular that during energy decay of stable perturbations the initial rapid decay of the perturbation kinetic energy relates to reforming/breaking of the unyielded plug and is followed by slower viscous decay. For axisymmetric perturbations these flows can be stable to order unity initial perturbation amplitudes and for Re[sign omitted]10². The channel geometry allows for symmetry breaking and appears to be less stable. A number of interesting effects are explored using the channel geometry. Secondly, we focus on demonstrating whether the stable core annular flow can be achieved when lubricating a visco-elastic core fluid with a yield stress fluid. We have performed over 100 experiments using Carbopol solutions as the lubricating yield stress fluid and Polyethylene Oxide solutions as the visco-elastic fluid. Thirdly, we have applied the energy stability method to study nonlinear stability of a core-annular flow of an Oldroyd-B fluid surrounded by a Bingham fluid. Together with the experimental study, this shows that visco-elasticity is not a barrier to use of this methodology.
title: What does it mean to be a citizen? The perspectives of immigrants and natives in Europe
Creators: name: Donnaloja, Victoria
Publisher: name: London School of Economics and Political Science (LSE)
Year: 2022

description: The key question underpinning my doctoral thesis is: what does it mean to be a citizen? I build on political-philosophical research that identifies the principles governing the granting of citizenship to immigrants in liberal democracies. I complement this literature that is mostly theoretical in orientation by investigating the meaning of citizenship from the point of view of the general public. That includes both native citizens who, by voting, indirectly decide on the criteria for naturalisation, and immigrants who do not hold citizenship and sometimes seek it. An obstacle to studying citizenship empirically is lack of data, as most surveys conflate national identity and citizenship, and treat citizenship as a time-invariant status. Moreover, survey data on people’s opinions and preferences over citizenship boundaries are rare. In my research I overcome these challenges by being creative with data sources and methodological approaches. My PhD contributes to our understanding of how the function and value of citizenship is changing in response to migration. Understanding the reasons for and the effects of the acquisition of citizenship tells us whether this institution holds identitarian significance for immigrants and if it is conducive to their inclusion. Identifying the attitudes towards the inclusion of immigrants as citizens is informative of the dominant narratives around what it takes to be a national and of whether citizenship matters to the native population.
Disrupting USP5/Cav3.2 interactions protects female mice from mechanical hypersensitivity during peripheral inflammation
Creators: name: Gadotti, Vinicius M
name: Zamponi, Gerald W
Publisher: name: University of Calgary
Year: 2018

description: Abstract Cav3.2 T-type calcium channels are important for the signaling of nociceptive information in the primary afferent pain pathway. During neuropathy and peripheral inflammation, Cav3.2 channels are upregulated due to an increased association with the deubiquitinase USP5. Disrupting these interactions in male mice by the use of cell permeant peptides reverses mechanical and thermal hypersensitivity. Here we explore the effects of interfering with USP5 binding to the channel in female mice with synchronized estrous cycle. We show that intrathecal delivery of a cell-penetrating TAT peptide corresponding to the UBPc domain of USP5 fully reverses mechanical hypersensitivity in mice intraplantarly injected with Complete Freund’s Adjuvant. Hence, the USP5 mediated dysregulation of Cav3.2 channel activity does not exhibit sex differences, and potential therapeutics targeting this interaction should be effective in both male and female subjects.
title: Journal of student affairs, vol. XXI, 2012
title: Journal of student affairs
titleType: AlternativeTitle
title: Journal of student affairs, vol. 21, 2012
titleType: AlternativeTitle
Creators: name: Colorado State University. Student Affairs In Higher Education, Publisher
Publisher: name: Mountain Scholar
Year: 2012
Subjects: subject: Student affairs services -- United States -- Periodicals
subject: Student affairs administrators -- Training of -- Colorado -- Fort Collins -- Periodicals

description: The mission of the Colorado State University Journal of Student Affairs is to develop and produce a scholarly publication that reflects current national and international education issues and the professional interests of student affairs practitioners. Specifically, the Journal provides an opportunity for the publication of articles by current students, alumni, faculty, and associates of the Student Affairs in Higher Education graduate program at Colorado State University. Articles are submitted in the fall and the Journal is published mid-spring. https://sahe.colostate.edu/journal/journal-board-archives/.
description: Comparison to celebration: developing a theory of group membership / Beau J. Johnson, Jody Donovan, Meagan Goulian, Anthony G. Pang -- United States undergraduate development through study abroad / Olivia R. Des Chenes -- Cornell University suicides: a crisis response critique / Lisa A. LaPoint -- Developing multiculturally competent staff members in higher education / Michael F. Butcher, Franklyn Taylor, Wendy Wallace -- Student leadership in a globalized world / Enrique Lara Nuño -- Religious identity development theory: as it applies to Muslim American college students / Azra Crnogorcevic -- Fundraising: the cycle, best practices, and the role of the friendraiser / Kacee Collard Jarnot -- Today's nonnative English speaking students / Moises D. Padilla -- Sustainability in higher education / Benjamin H. Wurzel.
Extended Production Planning of Reconfigurable Manufacturing Systems by Means of Simulation-based Optimization
Creators: name: Behrendt, Sebastian
name: Wurster, Marco
name: May, Marvin Carl
name: Lanza, Gisela
Publisher: name: Hannover : publish-Ing.
Year: 2023
Subjects: subject: Konferenzschrift
subject: Reconfigurable Manufacturing Systems
subject: Simulation-based Optimization
subject: Material Flow Simulation
subject: Meta Heuristics
subject: Production Planning
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Reconfigurable manufacturing systems (RMS) are capable of adjusting their operating point to the requirements of current customer demand with high degrees of freedom. In light of recent events, such as the covid crisis or the chip crisis, this reconfigurability proves to be crucial for efficient manufacturing of goods. Reconfigurability aims thereby not only at adjust production capacities but also for fast integration of new product variants or technologies. However, the operation of such systems is linked to high efforts concerning manual work in production planning and control. Simulation-based optimization provides the possibility to automate processes in production planning and control with the advantage of relying on mostly existing models such as material flow simulations. This paper studies the capabilities of the meta heuristics evolutionary algorithm, linear annealing and tabu search to automate the search for optimal production reconfiguration strategies. Two distinct use cases are regarded: an increase of customer demand and the introduction of a previously unknown product variant. A parametrized material flow simulation is used as function approximator for the optimizers, whereby the production system's structure as well as logic are target variables of the optimizers. The analysis shows that meta-heuristics find good solutions in a short time with only little manual configuration needed. Thus, metaheuristics illustrate the potential to automate the production planning of RMS. However, the results indicate that the performance of the three meta-heuristics considering optimization quality and speed differs strongly.
Stress granules plug and stabilize damaged endolysosomal membranes.
Creators: name: Bussi, Claudio
name: Mangiarotti, Agustín
name: Vanhille-Campos, Christian
name: Aylan, Beren
name: Pellegrino, Enrica
name: Athanasiadi, Natalia
name: Fearns, Antony
name: Rodgers, Angela
name: Franzmann, Titus M
name: Šarić, Anđela
name: Dimova, Rumiana
name: Gutierrez, Maximiliano G
Publisher: name: The Francis Crick Institute
Year: 2023
Subjects: classificationCode: Infectious Disease
subject: Infectious Disease
classificationCode: Cell Biology
subject: Cell Biology
classificationCode: Model organisms
subject: Model organisms

description: Endomembrane damage represents a form of stress that is detrimental for eukaryotic cells1,2. To cope with this threat, cells possess mechanisms that repair the damage and restore cellular homeostasis3-7. Endomembrane damage also results in organelle instability and the mechanisms by which cells stabilize damaged endomembranes to enable membrane repair remains unknown. Here, by combining in vitro and in cellulo studies with computational modelling we uncover a biological function for stress granules whereby these biomolecular condensates form rapidly at endomembrane damage sites and act as a plug that stabilizes the ruptured membrane. Functionally, we demonstrate that stress granule formation and membrane stabilization enable efficient repair of damaged endolysosomes, through both ESCRT (endosomal sorting complex required for transport)-dependent and independent mechanisms. We also show that blocking stress granule formation in human macrophages creates a permissive environment for Mycobacterium tuberculosis, a human pathogen that exploits endomembrane damage to survive within the host.
On the geometry of quantum indistinguishability
Creators: name: Reyes-Lega, A. F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81Q70, 81S05, 81Q35

description: An algebraic approach to the study of quantum mechanics on configuration spaces with a finite fundamental group is presented. It uses, in an essential way, the Gelfand-Naimark and Serre-Swan equivalences and thus allows one to represent geometric properties of such systems in algebraic terms. As an application, the problem of quantum indistinguishability is reformulated in the light of the proposed approach. Previous attempts aiming at a proof of the spin-statistics theorem in non-relativistic quantum mechanics are explicitly recast in the global language inherent to the presented techniques. This leads to a critical discussion of single-valuedness of wave functions for systems of indistinguishable particles. Potential applications of the methods presented in this paper to problems related to quantization, geometric phases and phase transitions in spin systems are proposed.
description: 24 pages
title: Predictive value of texture analysis in response to chemotherapy in liver metastases
Creators: name: Landolfi, Federica
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Diagnostic or prognostic study
subject: Retrospective
subject: Molecular, genomics and proteomics
subject: Metastases
subject: Radiation therapy / Oncology
subject: Chemotherapy
subject: CT
subject: Liver
subject: Abdomen
subject: Oncologic Imaging

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Metastases are the most common malignant liver lesions, mainly from gastrointestinal malignancies such as colon, gastric and pancreatic carcinomas; however almost all cancer histotypes could spread to the liver, giving arise to secondary lesions....
ONG VA ONGSIZLIK HAQIDA TUSHUNCHA
Creators: name: Iskandarova, Ruxshona
Publisher: name: Zenodo
Year: 2025

description: Mazkur maqolada ong va ongsizlik tushunchalarining mohiyati, ularning inson tafakkuri va xatti-harakatlariga ta’siri tahlil qilinadi. Ong- insonning atrof-muhitni anglash, fikrlash va maqsadli faoliyat yuritish qobilyatidir. U bilim olish, tahlil qilish va qaror qabul qilish jarayonlarida muhim rol o‘ynaydi. Ongsizlik esa inson ongidan tashqarida bo‘lib, instinktlar, sezgilar va avtomatik xatti-harakatlar bilan bog‘liq holatni o‘z ichiga oladi.
Modeling of linear systems with parameter variations : applications in hard disk and ball screw drives
Creators: name: Sepasi, Daniel
Publisher: name: University of British Columbia
Year: 2012

description: This thesis considers variations in the parameters of the dynamics of linear systems, and tackles modeling of Linear Time-Invariant (LTI) and Linear Parameter Varying (LPV) plants. The variations in the dynamics make the controller design challenging, and to successfully overcome this challenge, two methods are proposed in this thesis. One method generates a connected model set. The idea of the multidimensional principal curves methodology is employed to detect the nonlinear correlations between parameters of the given set of system dynamics. The connected model set is simple and tight, leading to both nonconservatism and reduced computational complexity in subsequent controller design, and hence, to improve the controller performance. The other method is developed to derive a family of discrete model sets for a given set of system response data. A relaxed version of the normalized cut methodology is developed and used in an algorithm to divide a given set of system responses into the smallest possible number of partitions in such a way that a desired performance objective is satisfied for all partitions by designing one controller for each partition. Using the proposed method, a tight uncertainty model is derived for Hard Disk Drive (HDD) systems, and an H∞ controller is synthesized. The dynamics of HDDs is studied from a controller design point of view. Especially, the variations in the dynamics due to the change in temperatures and limited precision in the production line are examined. Also, the variations in the dynamics of Ball Screw Drive (BSD) systems due to the structural flexibility, runout, and workpiece mass variation are studied. These three factors are explicitly incorporated in LPV models. To build the LPV models, it is determined how the system parameters are affected by two variables, namely, the measurable table position and the uncertain mass of the table. We design robust gain scheduling controllers which are scheduled by the table position and are robust over the table mass.
title: Transition, volume 1, issue 4
title: Transition
titleType: AlternativeTitle
Creators: name: Watts, Steve
name: ASCSU, Publisher
Publisher: name: Mountain Scholar
Year: 1969
Subjects: Colorado State University -- Periodicals
Fort Collins (Colo.) -- Periodicals

description: May 2 issue of the Transition, a weekly Colorado State University student newspaper and an alternative to the Rocky Mountain Collegian. Includes articles, photographs, and illustrations concerning local and national issues important to students at Colorado State University.
Intersection theory on Shimura surfaces
Creators: name: Howard, Benjamin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Kudla has proposed a general program to relate arithmetic intersection multiplicities of special cycles on Shimura varieties to Fourier coefficients of Eisenstein series. The lowest dimensional case, in which one intersects two codimension one cycles on the integral model of a Shimura curve, has been completed by Kudla-Rapoport-Yang. In the present paper we prove results in a higher dimensional setting. On the integral model of a Shimura surface we consider the intersection of a Shimura curve with a codimension two cycle of complex multiplication points, and relate the intersection to certain cycles classes constructed by Kudla-Rapoport-Yang. As a corollary we deduce that our intersection multiplicities appear as Fourier coefficients of a Hilbert modular form of half-integral weight.
Deformable Spectrograms
Creators: name: Reyes-Gomez, Manuel
name: Jojic, Nebojsa
name: Ellis, Daniel P. W.
Publisher: name: Columbia University
Year: 2005
Subjects: Electrical engineering

description: Speech and other natural sounds show high temporal correlation and smooth spectral evolution punctuated by a few, irregular and abrupt changes. In a conventional Hidden Markov Model (HMM), such structure is represented weakly and indirectly through transitions between explicit states representing 'steps' along such smooth changes. It would be more efficient and informative to model successive spectra as transformations of their immediate predecessors, and we present a model which focuses on local deformations of adjacent bins in a time-frequency surface to explain an observed sound, using explicit representation only for those bins that cannot be predicted from their context. We further decompose the log-spectrum into two additive layers, which are able to separately explain and model the evolution of the harmonic excitation, and formant filtering of speech and similar sounds. Smooth deformations are modeled with hidden transformation variables in both layers, using Markov Random Fields (MRFs) with overlapping subwindows as observations; inference is efficiently performed via loopy belief propagation. The model can fill-in deleted time-frequency cells without any signal model, and an entire signal can be compactly represented with a few specific states along with the deformation maps for both layers. We discuss several possible applications for this new model, including source separation.
title: Artificial Intelligence in the evaluation of Proptosis on Computed Tomography.
Creators: name: tonpe, sudhanshu
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Artificial Intelligence and Machine Learning
subject: Artificial Intelligence
subject: Eyes
subject: Head and neck
subject: CT
subject: Computer Applications-Detection, diagnosis
subject: Image verification
subject: Retrospective
subject: Observational
subject: Performed at one institution
subject: Artificial Intelligence and Machine Learning

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Proptosis is defined as any forward displacement or bulging of an eye and is frequently used to describe a change in the position of the globe. The corneal apex is normally 15 to 18 mm anterior to the lateral orbital rim in adults, with more than 21...
Dissipative Divergence of Resonant Orbits
Creators: name: Batygin, Konstantin
name: Morbidelli, Alessandro
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: A considerable fraction of multi-planet systems discovered by the observational surveys of extrasolar planets reside in mild proximity to first-order mean motion resonances. However, the relative remoteness of such systems from nominal resonant period ratios (e.g. 2:1, 3:2, 4:3) has been interpreted as evidence for lack of resonant interactions. Here we show that a slow divergence away from exact commensurability is a natural outcome of dissipative evolution and demonstrate that libration of critical angles can be maintained tens of percent away from nominal resonance. We construct an analytical theory for the long-term dynamical evolution of dissipated resonant planetary pairs and confirm our calculations numerically. Collectively, our results suggest that a significant fraction of the near-commensurate extrasolar planets are in fact resonant and have undergone significant dissipative evolution.
description: 10 pages, 6 figures, accepted to AJ
The environmental dependence of the structure of outer galactic discs in STAGES spiral galaxies
Creators: name: Maltby, David T.
name: Gray, Meghan E.
name: Aragón-Salamanca, Alfonso
name: Wolf, Christian
name: Bell, Eric F.
name: Jogee, Shardha
name: Haeussler, Boris
name: Barazza, Fabio D.
name: Boehm, Asmus
name: Jahnke, Knud
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present an analysis of V-band radial surface brightness profiles for spiral galaxies from the field and cluster environments using Hubble Space Telescope/Advanced Camera for Surveys imaging and data from the Space Telescope A901/2 Galaxy Evolution Survey (STAGES). We use a large sample of ~330 face-on to intermediately inclined spiral galaxies and assess the effect of the galaxy environment on the azimuthally averaged radial surface brightness mu profiles for each galaxy in the outer stellar disc (24 < mu < 26.5 mag per sq arcsec). For galaxies with a purely exponential outer disc (~50 per cent), we determine the significance of an environmental dependence on the outer disc scalelength h_out. For galaxies with a broken exponential in their outer disc, either down-bending (truncation, ~10 per cent) or up-bending (anti-truncation, ~40 per cent), we measure the strength T (outer-to-inner scalelength ratio, log_10(h_out/h_in) of the mu breaks and determine the significance of an environmental dependence on break strength T. Surprisingly, we find no evidence to suggest any such environmental dependence on either outer disc scalelength h_out or break strength T, implying that the galaxy environment is not affecting the stellar distribution in the outer stellar disc. We also find that for galaxies with small effective radii (r_e < 3 kpc) there is a lack of outer disc truncations in both the field and cluster environments. Our results suggest that the stellar distribution in the outer disc of spiral galaxies is not significantly affected by the galaxy environment.
description: Accepted to MNRAS. Appendix A available at http://www.nottingham.ac.uk/~ppxdtm/STAGES_profiles_appendix.pdf
The rate of beneficial mutations surfing on the wave of a range expansion
Creators: name: Lehe, Remi
name: Hallatschek, Oskar
name: Peliti, Luca
Publisher: name: arXiv
Year: 2011
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Many theoretical and experimental studies suggest that range expansions can have severe consequences for the gene pool of the expanding population. Due to strongly enhanced genetic drift at the advancing frontier, neutral and weakly deleterious mutations can reach large frequencies in the newly colonized regions, as if they were surfing the front of the range expansion. These findings raise the question of how frequently beneficial mutations successfully surf at shifting range margins, thereby promoting adaptation towards a range-expansion phenotype. Here, we use individual-based simulations to study the surfing statistics of recurrent beneficial mutations on wave-like range expansions in linear habitats. We show that the rate of surfing depends on two strongly antagonistic factors, the probability of surfing given the spatial location of a novel mutation and the rate of occurrence of mutations at that location. The surfing probability strongly increases towards the tip of the wave. Novel mutations are unlikely to surf unless they enjoy a spatial head start compared to the bulk of the population. The needed head start is shown to be proportional to the inverse fitness of the mutant type, and only weakly dependent on the carrying capacity. The second factor is the mutation occurrence which strongly decreases towards the tip of the wave. Thus, most successful mutations arise at an intermediate position in the front of the wave. We present an analytic theory for the tradeoff between these factors that allows to predict how frequently substitutions by beneficial mutations occur at invasion fronts. We find that small amounts of genetic drift increase the fixation rate of beneficial mutations at the advancing front, and thus could be important for adaptation during species invasions.
description: 21 pages, 7 figures; to appear in PLoS Computational Biology
title: Staging of pancreatic ductal adenocarcinoma: comparison between CT and MRI for accurate clinical practice
Creators: name: Lucarelli, Antonio
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Diagnostic or prognostic study
subject: Prospective
subject: Cancer
subject: Staging
subject: Observer performance
subject: Comparative studies
subject: MR
subject: CT
subject: Pancreas
subject: Management
subject: Oncologic Imaging

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Pancreatic ductal adenocarcinoma (PDAC) is the fourth leading cause of cancer death. Computed tomography (CT) and magnetic resonance imaging (MRI) are currently used for accurate preoperative tumor assessment, particularly regarding resectability,...
Romney and the Business Narrative
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2011
Subjects: subject: Political science
subject: FOS: Political science

description: The absence of any personal narrative around Romney does not mean there is no narrative to his campaign and the image of "All-Business Man, the world's most boring superhero" which he has cultivated. Romney is not the first GOP candidate to present himself as a leader from the private sector uniquely positioned to rebuild the country and the economy. The businessman as savior is a popular Republican theme, which is consistent with the Republican's ideological preference for business interests over those of working people, youth, senior citizens, the environment or anything else.
title: Radial access (RA): is it here to stay? RA in uterine artery embolization.
Creators: name: Costilla Frías, Marcos
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Retrospective
subject: Dosimetric comparison
subject: Embolisation
subject: Arterial access
subject: Ultrasound
subject: CT-Angiography
subject: Catheter arteriography
subject: Genital / Reproductive system female
subject: Interventional Radiology

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Uterine artery embolization (UAE) has shown very good results in patients with fibroids. However, severe abdominal pain related to percutaneous procedure and lack of interventional radiology (IR) hospital beds have meant that it has not become the...
Geometry-induced reduction of the critical current in superconducting nanowires
Creators: name: Henrich, D.
name: Reichensperger, P.
name: Hofherr, M.
name: Ilin, K.
name: Siegel, M.
name: Semenov, A.
name: Zotova, A.
name: Vodolazov, D. Yu.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Reduction of the critical current in narrow superconducting NbN lines with sharp and rounded bends with respect to the critical current in straight lines was studied at different temperatures. We compare our experimental results with the reduction expected in the framework of the London model and the Ginsburg-Landau model. We have experimentally found that the reduction is significantly less than either model predicts. We also show that in our NbN lines the bends mostly contribute to the reduction of the critical current at temperatures well below the superconducting transition temperature.
Supporting Democracy and Supporting Dictatorship in Egypt
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2011
Subjects: subject: Political science
subject: FOS: Political science

description: The challenge facing the U.S. and the administration is that of how to convince a new group of Egyptian leaders, who will almost certainly come to power in the near future, that we are now on their side and genuinely want democracy and freedom in Egypt, despite our years of support for Mubarak. Although there was no way to know that this conundrum would come to the fore during this month, this year or even this administration, it was always inevitable and always a matter of when, not if.
Boosting Moving Object Indexing through Velocity Partitioning
Creators: name: Nguyen, Thi
name: He, Zhen
name: Zhang, Rui
name: Ward, Phillip
Publisher: name: arXiv
Year: 2012
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: There have been intense research interests in moving object indexing in the past decade. However, existing work did not exploit the important property of skewed velocity distributions. In many real world scenarios, objects travel predominantly along only a few directions. Examples include vehicles on road networks, flights, people walking on the streets, etc. The search space for a query is heavily dependent on the velocity distribution of the objects grouped in the nodes of an index tree. Motivated by this observation, we propose the velocity partitioning (VP) technique, which exploits the skew in velocity distribution to speed up query processing using moving object indexes. The VP technique first identifies the "dominant velocity axes (DVAs)" using a combination of principal components analysis (PCA) and k-means clustering. Then, a moving object index (e.g., a TPR-tree) is created based on each DVA, using the DVA as an axis of the underlying coordinate system. An object is maintained in the index whose DVA is closest to the object's current moving direction. Thus, all the objects in an index are moving in a near 1-dimensional space instead of a 2-dimensional space. As a result, the expansion of the search space with time is greatly reduced, from a quadratic function of the maximum speed (of the objects in the search range) to a near linear function of the maximum speed. The VP technique can be applied to a wide range of moving object index structures. We have implemented the VP technique on two representative ones, the TPR*-tree and the Bx-tree. Extensive experiments validate that the VP technique consistently improves the performance of those index structures.
description: VLDB2012
title: Cortical reorganization processes induced by 7 weeks yoga meditation training: a prospective longitudinal study of meditation naïve participants
Creators: name: Lenhart, Lukas
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Observational
subject: Prospective
subject: Biological effects
subject: Computer Applications-Virtual imaging
subject: MR
subject: Neuroradiology brain
subject: Neuro
subject: Performed at one institution
subject: Neuro

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Meditation practices were associated with numerous positive effects on psychological well-being and reduced stress-related symptoms. To take advantage of these beneficial effects, mindful-based techniques were increasingly implemented into...
A new psychometric questionnaire for reporting of somatosensory percepts
Creators: name: Kim, Linda H.
name: McLeod, R. S.
name: Kiss, Zelma H. T.
Publisher: name: University of Calgary
Year: 2018

description: There have been remarkable advances over the past decade in neural prostheses to restore lost motor function. However, restoration of somatosensory feedback, which is essential for fine motor control and user acceptance, has lagged behind. With an increasing interest in using electrical stimulation to restore somatosensory sensations within the peripheral (PNS) and central nervous systems (CNS), it is critical to characterize the percepts evoked by electrical stimulation in a standardized manner with a validated psychometric questionnaire. This will allow comparison of results from applications at various nervous system levels in multiple settings.
title: Image quality analysis of two different techniques for multi-arterial phase dynamic study in liver MRI with Gd-EOB-DTPA: results of a monocentric prospective randomized observational study.
Creators: name: Castagnoli, Francesca
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Prospective
subject: Artifacts
subject: Contrast agent-intravenous
subject: MR
subject: Liver
subject: Abdomen
subject: Abdominal Viscera

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Nowadays, MRI is the exam of choice for the study of the liver as it represents the problem solver, mainly for its multiparametricity. The dynamic study, in particular the arterial phase, still remains essential for the characterization of focal...
Dosing of Electrical Parameters in Deep Brain Stimulation (DBS) for Intractable Depression: A Review of Clinical Studies
Creators: name: Ramasubbu, Rajamannar
name: Lang, Stefan
name: Kiss, Zelma H. T.
name: , Lan
Publisher: name: University of Calgary
Year: 2018

description: Background: The electrical parameters used for deep brain stimulation (DBS) in movement disorders have been relatively well studied, however for the newer indications of DBS for psychiatric indications these are less clear. Based on the movement disorder literature, use of the correct stimulation parameters should be crucial for clinical outcomes. This review examines the stimulation parameters used in DBS studies for treatment resistant depression (TRD) and their relevance to clinical outcome and brain targets. Methods: We examined the published studies on DBS for TRD archived in major databases. Data on stimulus parameters (frequency, pulse width, amplitude), stimulation mode, brain target, efficacy, safety, and duration of follow up were extracted from 29 observational studies including case reports of patients with treatment resistant unipolar, bipolar, and co-morbid depression. Results: The algorithms commonly used to optimize efficacy were increasing amplitude followed by changing the electric contacts or increasing pulse width. High frequency stimulation (>100 Hz) was applied in most cases across brain targets. Keeping the high frequency stimulation constant, three different combinations of parameters were mainly used: (i) short pulse width (60-90 us) and low amplitude (0-4 V), (ii) short pulse width and high amplitude (5-10 V), (iii) long pulse width (120-450 us) and low amplitude. There were individual variations in clinical response to electrical dosing and also in the time of clinical recovery. There was no significant difference in mean stimulation parameters between responders and non-responders suggesting a role for stimulation unrelated factors in response. Conclusions: Although limited by open trials and small sample size, three optimal stimulation parameter combinations emerged from this review. Studies are needed to assess the comparative efficacy and safety of these combinations, such as a registry of data from patients undergoing DBS for TRD with individual data on stimulation parameters.
Obama's Budget Dilemma
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2011
Subjects: subject: Political science
subject: FOS: Political science

description: Faced with a budget deficit that is largely not of his making and has been exploited by his political opponents, but is nonetheless serious and an economy that has been agonizingly slow to recover, Obama has no easy way out. Ignoring the reality of the deficit would not be wise, but ignoring the reality that spending cuts will hurt the economy would also be unwise. The President is going to make some unpopular decisions, but looking at the current proposed budget, progressives are right to wonder when he is going to make a decision which is unpopular with his political opponents, rather than just with his base.
title: Transition, volume 1, issue 6
title: Transition
titleType: AlternativeTitle
Creators: name: Watts, Steve
name: ASCSU, Publisher
Publisher: name: Mountain Scholar
Year: 1969
Subjects: Colorado State University -- Periodicals
Fort Collins (Colo.) -- Periodicals

description: May 16 issue of the Transition, a weekly Colorado State University student newspaper and an alternative to the Rocky Mountain Collegian. Includes articles, photographs, and illustrations concerning local and national issues important to students at Colorado State University.
title: Bedrohungen für die Demokratie: Klima-Fehlinformationen und geschlechtsspezifische  Desinformation
Creators: name: Berger, Cathleen
name: Freihse, Charlotte
name: Hofmann, Vincent
name: Kettemann, Matthias C.
name: Mosene, Katharina
Publisher: name: Bertelsmann Stiftung
Year: 2023
Subjects: Desinformation
Demokratie
Klimawandel
Geschlechtsspezifische Desinformation

description: Unser Informationsökosystem steht unter Druck und stellt Demokratien auf der ganzen Welt vor große Herausforderungen. Digitale Desinformation erreicht Millionen von Menschen mit verheerenden Auswirkungen: In Christchurch, Halle an der Saale und El Paso mündeten Online-Desinformationskampagnen in hassmotivierte gewalttätige Angriffe; „Deny, Delay, and Diffuse“-Taktiken (leugnen, verzögern und zerstreuen) im Kontext der Klimakrise verlangsamen oder unterbinden sogar notwendige Maßnahmen und Regulierungen, mit schwerwiegenden Folgen für das Leben von Menschen, die Artenvielfalt, und mehr.

Was aber, wenn Inhalte zwar schrecklich, aber rechtlich zulässig ist?

Wie können wir die Notwendigkeit, schädliche Inhalte zu bekämpfen, mit der Verpflichtung zum Schutz der Meinungsfreiheit und der Privatsphäre in Einklang bringen?
The future of cosmology and the role of non-linear perturbations
Creators: name: Christopherson, Adam J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Cosmological perturbation theory is a key tool to study the universe. The linear or first order theory is well understood, however, developing and applying the theory beyond linear order is at the cutting edge of current research in theoretical cosmology. In this article, I will describe some signatures of non-linear perturbation theory that do not exist at linear order, focusing on vorticity generation at second order. In doing so, we discuss why this, among other features such as induced gravitational waves and non-Gaussianities, shows that cosmological perturbation theory is crucial for testing models of the universe.
description: 6 pages, essay originally submitted to GRF competition, to appear in Commun. Theor. Phys
In-vivo pan/tilt endoscope with integrated light source
Creators: name: Hu, Tie
name: Allen, Peter K.
name: Fowler, Dennis
Publisher: name: Columbia University
Year: 2007
Subjects: Diagnostic imaging
Robotics

description: Endoscopic imaging is still dominated by the paradigm of pushing long sticks into small openings. This approach has a number of limitations for minimal access surgery, such as narrow angle imaging, limited workspace, counter-intuitive motions and additional incisions for the endoscpic instruments. Our intent is to go beyond this paradigm, and remotize sensors and effectors directly into the body cavity. To this end, we have developed a prototype of a novel insertable pan/tilt endoscopic camera with an integrated light source. The package has a size of 110 mm in length and 10 mm in diameter and can be inserted into the abdomen through a standard trocar and then anchored onto the abdominal wall, leaving the incision port open for access. The camera package contains three parts: an imaging module, an illumination module, and a pan/tilt motion platform. The imaging module includes a lens and CCD imaging sensor. The illumination module attaches to the imaging module and has an array of LED light sources. The pan/tilt platform provides the imaging module with pan of 120 degrees and tilt motion of 90 degrees using small servo motors. A fixing mechanism is designed to hold the device in the cavity. A standard joy stick can be used to control the motion of the camera in a natural way. The design allows for multiple camera packages to be inserted through a single incision as well.