cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Less prevalent use of biologics for inflammatory bowel disease in patients from Non-Academic hospitals – a Danish register-based study of a region with 580,000 citizens
Creators: name: Krarup, Anne Lund
name: Larsen, Lone
name: Nayeb, Alev Büyükuslu
name: Grøntved, Simon
name: Paaske, Søren Johnsen
name: Esbjørn, Mette
name: Fallingborg, Jan
name: Nielsen, Gunnar Lauge
name: Allin, Kristine
name: Jess, Tine
name: Olesen, Anne Estrup
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Biologic therapy is widely used for inflammatory bowel disease (IBD) and may decrease surgery rates. However, it remains uncertain if there is unwarranted geographic variation in access to biologic therapy. The aim of the study was to explore if all patients had equal access to biologic therapy in the North Denmark Region. A cross-sectional register-based study of use of biologics, hospital contacts and surgery among all IBD patients having a hospital contact in the geographically well-defined North Denmark Region during 2016–2018. ICD-10 diagnosis codes, hospital contacts and procedure codes were retrieved from the region’s hospital registry. The population is served by an Academic Hospital and two Non-Academic Hospitals constituting three referral areas (according to postal codes). In total, 2371 patients with ulcerative colitis (UC) and 1383 patients with Crohn’s disease (CD) had a hospital contact in the region during 2016–2018. Compared to patients from the Academic Hospital, patients from the Non-Academic Hospitals experienced a lower incidence of biologic therapy for UC IRR 0.786 (0.621: 0.994), as well as for CD IRR 0.912 (0.781: 1.065). The incidence of bowel related hospital contacts were higher in patients from Non-Academic hospitals for both UC IRR 1.318 (1.207: 1.438) and CD IRR 1.165 (0.915: 1.483). Patients with IBD living in a referral area to a Non-Academic Hospital in the North Denmark Region are less likely to receive biologics. This was associated with an increased prevalence of IBD related surgical procedures.
The Structure of Stable Codimension One Integral Varifolds near Classical Cones of Density $Q+1/2$
Creators: name: Minter, Paul
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 53A10, 49Q20, 35J60

description: For each positive integer $Q\in\mathbb{Z}_{\geq 2}$, we prove a multi-valued $C^{1,α}$ regularity theorem for varifolds in the class $\mathcal{S}_Q$, i.e., stable codimension one stationary integral $n$-varifolds which have no classical singularities of vertex density $
description: 27 pages, comments welcome!
XPS evidence for molecular charge-transfer doping of graphene
Creators: name: Choudhury, D.
name: Das, B.
name: Sarma, D. D.
name: Rao, C. N. R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: By employing x-ray photoelectron spectroscopy (XPS), we have been able to establish the occurrence of charge-transfer doping in few-layer graphene covered with electron acceptor (TCNE) and donor (TTF) molecules. We have performed quantitative estimates of the extent of charge transfer in these complexes and elucidated the origin of unusual shifts of their Raman G bands and explained the differences in the dependence of conductivity on n- and p-doping. The study unravels the cause of the apparent difference between the charge-transfer doping and electrochemical doping.
description: 15 pages, 5 figures
SU(2) gauge theory of gravity with topological invariants
Creators: name: Sengupta, Sandipan
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The most general gravity Lagrangian in four dimensions contains three topological densities, namely Nieh-Yan, Pontryagin and Euler, in addition to the Hilbert-Palatini term. We set up a Hamiltonian formulation based on this Lagrangian. The resulting canonical theory depends on three parameters which are coefficients of these terms and is shown to admit a real SU(2) gauge theoretic interpretation with a set of seven first-class constraints. Thus, in addition to the Newton's constant, the theory of gravity contains three (topological) coupling constants, which might have non-trivial imports in the quantum theory.
description: Based on a talk at Loops-11, Madrid, Spain; To appear in Journal of Physics: Conference Series
Connectivity-Aware Pheromone Mobility Model for Autonomous UAV Networks
Creators: name: Devaraju, Shreyas
name: Ihler, Alexander
name: Kumar, Sunil
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: UAV networks consisting of reduced size, weight, and power (low SWaP) fixed-wing UAVs are used for civilian and military applications such as search and rescue, surveillance, and tracking. To carry out these operations efficiently, there is a need to develop scalable, decentralized autonomous UAV network architectures with high network connectivity. However, the area coverage and the network connectivity requirements exhibit a fundamental trade-off. In this paper, a connectivity-aware pheromone mobility (CAP) model is designed for search and rescue operations, which is capable of maintaining connectivity among UAVs in the network. We use stigmergy-based digital pheromone maps along with distance-based local connectivity information to autonomously coordinate the UAV movements, in order to improve its map coverage efficiency while maintaining high network connectivity.
Discovery of Novel Alkaloid Biosynthetic Genes Using Biochemical Genomics
Creators: name: Liscombe, David Kenneth
Publisher: name: Graduate Studies
Year: 2008

description: Bibliography: p. 226-244
description: Some pages are in colour.
description: The benzylisoquinoline alkaloids (BIAs) are a large and diverse group of plant specialized metabolites derived from the amino acid L-tyrosine via a complex array of biosynthetic enzymes. Many BIAs exhibit potent biological activities, such as the analgesic morphine and the antimicrobial sanguinarine, and are important therapeutic agents. However, plants remain the only commercial sources for many pharmaceutical alkaloids. Despite the occurrence of more than 2500 BIAs in plants, their biosynthesis is still poorly understood. This research aimed to isolate novel genes involved in BIA biosynthesis. Norcoclaurine synthase (NCS) catalyzes the first committed step in BIA biosynthesis in plants. NCS cDNAs were isolated from an opium poppy {Papaver somniferum) elicited cell culture expressed sequence tag (EST) collection and were functionally expressed in Escherichia coli. Recombinant forms of NCS homologs from other plants were shown to be devoid of NCS activity, and a virus-induced silencing of ncs expression significantly reduced the accumulation of morphinan alkaloids, suggesting that NCS is a unique enzyme responsible for norcoclaurine biosynthesis in plants. A cDNA encoding tetrahydroprotoberberine TV-methyl transferase (TNMT), an enzyme in sanguinarine biosynthesis, was also isolated from the opium poppy EST collection. Recombinant TNMT was purified, and characterized with respect to substrate specificity and kinetic parameters. TNMT activity and gene expression were detected in all opium poppy organs, which along with its ability to utilize canadine as a substrate, suggests that TNMT might be involved in other branches of BIA biosynthesis. An integrated comparative genomics approach employing transcript and mass spectrometry-based alkaloid profiling of cell cultures of Eschscholzia californica, Thalictrum flavum, and Papaver bracteatum, was used to discover additional novel BIA 7V-methyltransferase (NMT ) genes. Six novel NMT genes were identified and four were functionally characterized, including pavine N-methyltransferase from T. flavum, which represents the first characterized enzyme associated with pavine alkaloid biosynthesis. An integration of alkaloid profiling with the transcriptomic data generally facilitated the bidirectional prediction of both the substrate specificity of individual NMTs and the species-specific alkaloid content of different cellular systems, thereby demonstrating how this platform can be used to dissect the molecular basis of the chemical diversity generated in plant specialized metabolism.
Laparoscopic versus open liver resection for intrahepatic cholangiocarcinoma: a multicenter propensity score-matched study
Creators: name: Sahakyan, Mushegh A.
name: Aghayan, Davit L.
name: Edwin, Bjørn
name: Alikhanov, Ruslan
name: Britskaia, Natalia
name: Brudvik, Kristoffer Watten
name: D’Hondt, Mathieu
name: De Meyere, Celine
name: Efanov, Mikhail
name: Fretland, Åsmund A.
name: Hoff, Rune
name: Ismail, Warsan
name: Ivanecz, Arpad
name: Kazaryan, Airazat M.
name: Lassen, Kristoffer
name: Magdalenić, Tomislav
name: Parmentier, Isabelle
name: Røsok, Bård Ingvald
name: Villanger, Olaug
name: Yaqub, Sheraz
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: Cancer

description: The role of laparoscopy in the treatment of intrahepatic cholangiocarcinoma (ICC) remains unclear. This multicenter study examined the outcomes of laparoscopic liver resection for ICC. Patients with ICC who had undergone laparoscopic or open liver resection between 2012 and 2019 at four European expert centers were included in the study. Laparoscopic and open approaches were compared in terms of surgical and oncological outcomes. Propensity score matching was used for minimizing treatment selection bias and adjusting for confounders (age, ASA grade, tumor size, location, number of tumors and underlying liver disease). Of 136 patients, 50 (36.7%) underwent laparoscopic resection, whereas 86 (63.3%) had open surgery. Median tumor size was larger (73.6 vs 55.1 mm, p = 0.01) and the incidence of bi-lobar tumors was higher (36.6 vs 6%, p < 0.01) in patients undergoing open surgery. After propensity score matching baseline characteristics were comparable although open surgery was associated with a larger fraction of major liver resections (74 vs 38%, p < 0.01), lymphadenectomy (60 vs 20%, p < 0.01) and longer operative time (294 vs 209 min, p < 0.01). Tumor characteristics were similar. Laparoscopic resection resulted in less complications (30 vs 52%, p = 0.025), fewer reoperations (4 vs 16%, p = 0.046) and shorter hospital stay (5 vs 8 days, p < 0.01). No differences were found in terms of recurrence, recurrence-free and overall survival. Laparoscopic resection seems to be associated with improved short-term and with similar long-term outcomes compared with open surgery in patients with ICC. However, possible selection criteria for laparoscopic surgery are yet to be defined.
The Role of Immigrants, Emigrants, and Locals in the Historical Formation of European Knowledge Agglomerations
Creators: name: Koch, Philipp
name: Stojkoski, Viktor
name: Hidalgo, César A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: Did migrants make Paris a Mecca for the arts and Vienna a beacon of classical music? Or was their rise a pure consequence of local actors? Here, we use data on more than 22,000 historical individuals born between the years 1000 and 2000 to estimate the contribution of famous immigrants, emigrants, and locals to the knowledge specializations of European regions. We find that the probability that a region develops or keeps specialization in an activity (based on the birth of famous physicists, painters, etc.) grows with both, the presence of immigrants with knowledge on that activity and immigrants with knowledge in related activities. In contrast, we do not find robust evidence that the presence of locals with related knowledge explains entries and/or exits. We address some endogeneity concerns using fixed-effects models considering any location-period-activity specific factors (e.g. the presence of a new university attracting scientists).
Understanding Digital Scholarship Needs to Support the Evolving Nature of Academic Research
Creators: name: Hurrell, Christie
name: Ruddock, Kathryn
Publisher: name: Technology, Discovery & Digital Services
Year: 2017
Subjects: libraries
digital scholarship
research

description: Libraries are transforming spaces and services to better support the nature of 21st century research. For example, many academic libraries are developing digital scholarship centres or labs. This lightning talk will provide an overview of two consultation processes employed at the University of Calgary to gather feedback from scholars on how the library could support new modes of research. The University of Calgary undertook two consultation processes: the first was a focused workshop conducted in 2015 with scholars from three multidisciplinary research clusters: arctic studies, smart cities, and visual analytics. The second was a series of semi-structured interviews conducted in 2016 with individual scholars from a range of disciplines in the arts and humanities. The workshop participants highlighted common research support needs including data and data repositories,digitization, expertise, space, skills training, and funding for collaborations. The interview participants highlighted similar needs, with space, access to interdisciplinary collaborators, and training/consultation being the most commonly identified research support needs. This talk will be of interest to other academic libraries wishing to reshape library spaces and services to support the research needs of their local community. Key outcomes include: Understand trends in how libraries are supporting the evolving nature of academic resource. Learn about how one library gathered feedback on research support needs from scholars. Understand how existing library resources and expertise can be coordinated and/or reallocated to support new modes of research.
Cohort profile: Nordic Helicobacter Pylori eradication project (NordHePEP)
Creators: name: Pettersson, Anna-Klara
name: Santoni, Giola
name: Yan, Jacinth
name: Radkiewicz, Cecilia
name: Xie, Shaohua
name: Birgisson, Helgi
name: Ness-Jensen, Eivind
name: von Euler-Chelpin, My
name: Kauppila, Joonas H.
name: Lagergren, Jesper
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: This cohort description presents the Nordic Helicobacter Pylori Eradication Project (NordHePEP), a population-based cohort of patients having received eradication treatment for Helicobacter pylori (HP). The cohort is created with the main purpose of examining whether and to what extent HP eradication treatment influences the risk of gastrointestinal cancer. NordHePEP includes all adults (aged ≥18 years) having been prescribed and dispensed HP eradication treatment according to the nationwide complete drug registries in any of the five Nordic countries (Denmark, Finland, Iceland, Norway, or Sweden) between 1994 and 2020 (start and end year varies between countries). We have retrieved and merged individual-level data from multiple national registries, including drug, patient, cancer, population, and death registries. The cohort includes 674,771 patients having received HP eradication treatment. During up to 23 years of follow-up, 59,292 (8.8%) participants were diagnosed with cancer (non-melanoma skin cancer excluded), whereof 15,496 (2.3%) in the gastrointestinal tract. We will analyse HP eradication treatment in relation to gastrointestinal cancer risk. Standardised incidence ratios will be calculated as the observed cancer incidence in the cohort divided by the expected cancer incidence, derived from the background population of the corresponding age, sex, and calendar year.
Scaling Transformations and the Origins of Light Relics Constraints from Cosmic Microwave Background Observations
Creators: name: Ge, Fei
name: Cyr-Racine, Francis-Yan
name: Knox, Lloyd
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We use here a family of scaling transformations, that scale key rates in the evolution equations, to analytically understand constraints on light relics from cosmic microwave background (CMB) maps, given cosmological models of varying degrees of complexity. We describe the causes of physical effects that are fundamentally important to the constraining power of the data, with a focus on the two that are most novel. We use as a reference model a cosmological model that admits a scaling transformation that increases light relic energy density while avoiding all of these causes. Constraints on light relics in a given model can then be understood as due to the differences between the given model and the reference model, as long as the additional light relics only interact gravitationally with the Standard Model components. This understanding supports the development of cosmological models that can evade light relics constraints from CMB maps.
description: 17 pages + references, 12 figures. Published in PRD
Functional comparison and analysis of protein-protein interactions of Autographa californica multiple nucleopolyhedrovirus transregulatory proteins IE0 and IE1
Creators: name: Nie, Yingchao
Publisher: name: University of British Columbia
Year: 2010

description: Autographa californica multiple nucleopolyhedrovirus expresses two major transregulatory proteins IE0 and IE1 immediately upon infection. IE0 differs from IE1 only by 54 additional N-terminal amino acids (aa). Either IE0 or IE1 can support viral replication; however both are required for a wild-type infection. It is unknown what the different functions of IE0 and IE1. Both IE0 and IE1 can transactivate viral early genes and support viral DNA replication. It is therefore hypothesized that by the addition of Nterminal 54 aa, IE0 acquires different transactivation activity on viral genes and interacts with different viral or host partners. To test this hypothesis, functional comparisons between IE0 and IE1 and the identification of their interaction partners in infected cells were performed. Comparisons of subcellular localization and transactivation activities between IE0 and IE1 showed no difference. However analyses of the nucleocapsid content of occlusion derived virions (ODV) revealed that IE0 and IE1 appear to regulate the number of nucleocapsids per ODV. Deletion within the IE0 specific N-terminal 54 aa did not affect IE0 transactivation dramatically but reduced its ability to support viral DNA replication. Analyses of interacting proteins did not identify any proteins that were specific to either with IE0 or IE1. However, the viral protein AC16 (BV/ODV-E26) was shown to bind to both IE0 and IE1 via a binding domain at IE1 72-99 aa. Mutation of the binding domain enhanced budded virus (BV) production by viruses expressing only IE0 but not IE1. Deletion of ac16 however resulted in increased levels of IE0 relative to IE1 as the only observable impact. These results would therefore indicate that AC16 regulates ie0 expression. Deletion of ac16 and the overlapping gene ac17, interestingly resulted in a significant delay of viral gene expression for up to 12 hours. However, the delay of viral gene expression was only observed with BV-infected cells and not in cells infected by transfecting viral DNA. AC16 and AC17 are therefore critical for rapid gene expression during the very early events of infection, and highlight the fact that proteins interacting with IE0 and IE1 play key roles in baculovirus biology.
Tri-Agency Open Access Policy: Navigating requirements for grant holders
Creators: name: Hurrell, Christie
name: Smith, Robin
name: Wake, Rowena
Publisher: name: Libraries and Cultural Resources
Year: 2017
Subjects: open access
Tri-Agency

description: The harmonized open access policy released by the tri-council granting agencies (NSERC, SSHRC and CIHR) applies to all individuals receiving an NSERC or SSHRC research grant with an award date after May 1, 2015, and has been in place for CIHR grant holders since 2008. Grant recipients are now required to ensure that any peer-reviewed journal publications arising from Agency-supported research are freely accessible within 12 months of publication.
Diochus antennatus
Creators: name: Huang, Tian
name: Janák, Jiří
name: Zhou, Hong-Zhang
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Diochus
Diochus antennatus

description: 12. Diochus antennatus (Motschulsky, 1858)
(Fig 1M)
Rhegmatocerus antennatus Motschulsky, 1858: 659 (Type locality: Indes orientales).
Diochus antennatus; Gemminger and Harold, 1868: 608 (catalog); Bernhauer and Schubert, 1914:319 (catalog); Bernhauer, 1922: 231 (Formosa); Bernhauer, 1928: 15 (Sumatra); Cameron, 1932: 46 (characters; Penang; Malay Peninsula); Scheerpeltz, 1933: 1323 (catalog; Malay-Halbinsel, Formosa, Neu Guinea); Cameron, 1934: 79 (type examined); Cameron, 1937: 4 (Java); Shibata, 1973: 130 (Taiwan); Coiffait, 1982: 27 (characters; Nepal); Herman, 2001: 2444 (catalog); Smetana, 2004: 624 (Taiwan; Nepal); Zhou and Zhou, 2016: 20 (characters); Huang, Janák, and Zhou, 2024c: 537 (Thailand; Myanmar; Malaysia).
Syn.: Diochus indicus Kraatz, 1859: 113 (Type locality: India orientalis); Bernhauer and Schubert, 1914: 319 (synonym of D. antennatus); Cameron, 1931: 360 (New Guinea); Cameron, 1932: 46 (synonym of D. antennatus); Smetana, 2004: 624 (synonym of D. antennatus); Löbl & Löbl, 2015: 1007 (Palaearctic catalog; synonym of D. antennatus).
Material examined. MYANMAR: Shan Prov.: 1 male, 2 females, Hsipaw, ca. 600 m, 22. 02. 96, litter, leg. S. Kurbatov (MHNG); 1 male: " Birmanie, Helfer ", " Darjeeling, Sikkim ", "indicus Kr. type ", "punctipennis Mots., indicus Kr. ", "Ex-Typis" (IRSNB-coll. Fauvel). THAILAND: Chanthaburi: 8 males, 3 females, Khao Sabap Nat. Park, 150–300 m, 23–24. XI. 1985, Burckhardt-Löbl (MHNG); 3 males, NE Bangkok, Khao Yai Nat. Park, Khao Khieo, 1150 m, 28. XI. 1985, Burckhardt-Löbl (MHNG); 1 male, 2 females, Khlong Nakha Wildlife Sanctuary, Kapoe Dist., 30 m, 29. 1. 1991, P. Schwendinger (MHNG); 1 male, 4 specimens, sex indet., Chiang Mai, Doi Suthep National Park, Nov. 2019, Mok Fa waterfall, leaf litter, 08.11.2019, leg. Kleeberg (AKBC, JJRC); 2 males, 1 female, Khao Lak N.P., Thone Chong Fa Fall, 100-300 m, 6.–15. I. 1998, leg. A. Schultz & K. Vock (SMNS, JJRC).
Diagnosis. Regarding to the similar shape of male sternite VIII, similar structure of the aedeagus and the spermatheca, this species is related to D. bisegmentatus and D. bilobatus sp. nov. In this species, the pronotum is more elongate and the aedeagus possesses longer parameres, which distinguished it from D. bilobatus sp. nov.. Compared to D. bisegmentatus, this species is without an elevation between eyes in males, and the inner structure of the aedeagus is different.
Distribution. Myanmar, Thailand, Malaysia. Published records from other regions of Indonesia (Sumatra, Java, Kalimantan [Borneo]), China (Taiwan) and Nepal have to be checked.
description: Published as part of Huang, Tian, Janák, Jiří & Zhou, Hong-Zhang, 2025, Revision of the genus Diochus Erichson (Coleoptera: Staphylinidae, Staphylininae, Diochini) from Thailand and Myanmar, pp. 105-142 in Zootaxa 5620 (1) on page 139, DOI: 10.11646/zootaxa.5620.1.5, http://zenodo.org/record/15219019
Semiconductor nanostructures engineering: Pyramidal quantum dots
Creators: name: Pelucchi, E.
name: Dimastrodonato, V.
name: Mereni, L. O.
name: Juska, G.
name: Gocalinska, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Pyramidal quantum dots (QDs) grown in inverted recesses have demonstrated over the years an extraordinary uniformity, high spectral purity and strong design versatility. We discuss recent results, also in view of the Stranski-Krastanow competition and give evidence for strong perspectives in quantum information applications for this system. We examine the possibility of generating entangled and indistinguishable photons, together with the need for the implementation of a, regrettably still missing, strategy for electrical control.
A probabilistic phase-insensitive optical squeezer in peaceful coexistence with causality
Creators: name: Gagatsos, C. N.
name: Karpov, E.
name: Cerf, N. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A non trace-preserving map describing a probabilistic but heralded noiseless linear amplifier has recently been proposed and experimentally demonstrated. Here, we exhibit another remarkable feature of this peculiar transformation, namely its ability to serve as a universal single-mode squeezer regardless of the quadrature that is initially squeezed. Hence, it acts as an heralded phase-insensitive optical squeezer, conserving the signal-to-noise ratio just as a phase-sensitive optical amplifier but for all quadratures at the same time, which may offer new perspectives in quantum optical communications. Although this ability to squeeze all quadratures seemingly opens a way to instantaneous signaling by circumventing the quantum no-cloning theorem, we explain the subtle mechanism by which the probability for such a causality violation vanishes, even on an heralded basis.
Development and evaluation of automated localisation and reconstruction of all fruits on tomato plants in a greenhouse based on multi-view perception and 3D multi-object tracking
Creators: name: Rincon, David Rapado
name: van Henten, Eldert J.
name: Kootstra, Gert
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The ability to accurately represent and localise relevant objects is essential for robots to carry out tasks effectively. Traditional approaches, where robots simply capture an image, process that image to take an action, and then forget the information, have proven to struggle in the presence of occlusions. Methods using multi-view perception, which have the potential to address some of these problems, require a world model that guides the collection, integration and extraction of information from multiple viewpoints. Furthermore, constructing a generic representation that can be applied in various environments and tasks is a difficult challenge. In this paper, a novel approach for building generic representations in occluded agro-food environments using multi-view perception and 3D multi-object tracking is introduced. The method is based on a detection algorithm that generates partial point clouds for each detected object, followed by a 3D multi-object tracking algorithm that updates the representation over time. The accuracy of the representation was evaluated in a real-world environment, where successful representation and localisation of tomatoes in tomato plants were achieved, despite high levels of occlusion, with the total count of tomatoes estimated with a maximum error of 5.08% and the tomatoes tracked with an accuracy up to 71.47%. Novel tracking metrics were introduced, demonstrating that valuable insight into the errors in localising and representing the fruits can be provided by their use. This approach presents a novel solution for building representations in occluded agro-food environments, demonstrating potential to enable robots to perform tasks effectively in these challenging environments.
Measurable Envelopes, Hausdorff Measures and Sierpiński Sets
Creators: name: Elekes, Márton
Publisher: name: arXiv
Year: 2011
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: Primary 28A78, Secondary 03E35, 28E15

description: We show that the existence of measurable envelopes of all subsets of $\RR^n$ with respect to the $d$-dimensional Hausdorff measure $(0
Supplementary document for Ultraviolet Digital Holographic Microscopy (DHM) of micron-scale particles from shocked Sn ejecta - 6338662.pdf
Creators: name: Guildenbecher, Daniel
name: McMaster, Anthony
name: Corredor, Andrew
name: Malone, Robert
name: Mance, Jason
name: Rudziensky, Emma
name: Sorenson, D.S.
name: Danielson, Jeremy
name: Duke, Dana
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplemental Document
Formation time dependence of femtoscopic $ππ$ correlations in p+p collisions at $\sqrt{s_{NN}}$=7 TeV
Creators: name: Graef, Gunnar
name: Li, Qingfeng
name: Bleicher, Marcus
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate femtoscopic $ππ$ correlations using the UrQMD approach combined with a correlation afterburner. The dependence of $ππ$ correlations on the charged particle multiplicity and formation time in p+p collisions at $\sqrt{s_{NN}}$= 7 TeV is explored and compared to present ALICE data. The data allows to constrain the formation time in the string fragmentation to $τ_f \leq 0.8$ fm/c.
description: 9 pages, 2 figures
The arithmetic of tame quotient singularities in dimension $2$
Creators: name: Bresciani, Giulio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Let $k$ be a field, $X$ a variety with tame quotient singularities and $\tilde{X}\to X$ a resolution of singularities. Any smooth rational point $x\in X(k)$ lifts to $\tilde{X}$ by the Lang-Nishimura theorem, but if $x$ is singular this might be false. For certain types of singularities the rational point is guaranteed to lift, though; these are called singularities of type $\mathrm{R}$. This concept has applications in the study of the fields of moduli of varieties and yields an enhanced version of the Lang-Nishimura theorem where the smoothness assumption is relaxed. We classify completely the tame quotient singularities of type $\mathrm{R}$ in dimension $2$; in particular, we show that every non-cyclic tame quotient singularity in dimension $2$ is of type $\mathrm{R}$, and most cyclic singularities are of type $\mathrm{R}$ too.
Dynamics of piecewise contractions of the interval
Creators: name: Nogueira, Arnaldo
name: Pires, Benito
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37E05, 37C20, 37E15

description: We study the asymptotical behaviour of iterates of piecewise contractive maps of the interval. It is known that Poincaré first return maps induced by some Cherry flows on transverse intervals are, up to topological conjugacy, piecewise contractions. These maps also appear in discretely controlled dynamical systems, describing the time evolution of manufacturing process adopting some decision-making policies. An injective map $f:[0,1)\to [0,1)$ is a {\it piecewise contraction of $n$ intervals}, if there exists a partition of the interval $[0,1)$ into $n$ intervals $I_1$,..., $I_n$ such that for every $i\in{1,...,n}$, the restriction $f|_{I_i}$ is $κ$-Lipschitz for some $κ\in (0,1)$. We prove that every piecewise contraction $f$ of $n$ intervals has at most $n$ periodic orbits. Moreover, we show that every piecewise contraction is topologically conjugate to a piecewise linear contraction.
Koopman interpretation and analysis of a public-key cryptosystem: Diffie-Hellman key exchange
Creators: name: Schlor, Sebastian
name: Strässer, Robin
name: Allgöwer, Frank
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: Cryptography and Security (cs.CR)
subject: Dynamical Systems (math.DS)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: The security of public-key cryptosystems relies on computationally hard problems, that are classically analyzed by number theoretic methods. In this paper, we introduce a new perspective on cryptosystems by interpreting the Diffie-Hellman key exchange as a nonlinear dynamical system. Employing Koopman theory, we transfer this dynamical system into a higher-dimensional space to analytically derive a purely linear system that equivalently describes the underlying cryptosystem. In this form, analytic tools for linear systems allow us to reconstruct the secret integers of the key exchange by simple manipulations. Moreover, we provide an upper bound on the minimal required lifting dimension to obtain perfect accuracy. To demonstrate the potential of our method, we relate our findings to existing results on algorithmic complexity. Finally, we transfer this approach to a data-driven setting where the Koopman representation is learned from data samples of the cryptosystem.
description: This work has been accepted to IFAC for publication at the 22nd IFAC World Congress 2023
The 1953 Cosmic Ray Conference at Bagneres de Bigorre
Creators: name: Cronin, James W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The cosmic ray conference at Bagn`eres de Bigorre in July, 1953 organized by Patrick Blackett and Louis Leprince-Ringuet was a seminal one. It marked the beginning of sub atomic physics and its shift from cosmic ray research to research at the new high energy accelerators. The knowledge of the heavy unstable particles found in the cosmic rays was essentially correct in fact and interpretation and defined the experiments that needed to be carried out with the new accelerators. A large fraction of the physicists who had been using cosmic rays for their research moved to the accelerators. This conference can be placed in importance in the same category as two other famous conferences, the Solvay congress of 1927 and the Shelter Island Conference of 1948.
Triple Trilithon Outdoor Theater
Creators: name: Shirley, Clinton Austin
name: 0000-0001-8168-5344
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Trilithon
Theater design
Theatre design
Outdoor performance space
Outdoor theater design
Ancient building principles
Directionality
Balanced dualism
Hierophany
Community theater design
Community spaces
Performing arts audiences
Theater audiences

description: The purpose of this thesis project is to research and design an outdoor performance space that will facilitate and enhance communion among people. In addition, the space will connect the users to their own human ancestry by the integration of ancient building principles into the structure’s design and construction. I researched many of the world’s Megalithic architectural sites and visited Chaco Canyon, New Mexico to study the winter solstice light’s interaction with the architecture. I was looking for harmonies and elements that “spoke” to peace and community. I identified two structures that exemplified these collective unconscious ideals to use as a framework for my design. My design for the Triple Trilithon Outdoor Theater combines architectural elements from the Holy of Holies Room in the Hypogeum on the Island of Malta and the Great Kivas from Chaco Canyon. The design utilizes the principles of directionality, balanced dualism, and hierophany. Embedded within the design of The Triple Trilithon Outdoor Theater the effects of directionality, balanced dualism, and hierophany are aimed at creating a space that elicits inner harmony. Audience members and performers will benefit from participating in and with this space just as ancient peoples utilized their architecture to enhance their spirituality, sense of peace, attainment of knowledge and enjoyment. I made three scale models of the design to present the idea. I originally intended for a life-sized version of the middle Trilithon doorway to be built and installed, but the Covid-19 outbreak interrupted my plans and I was unable to debut the structure with the performances I had arranged. Instead, I developed a website to present the painted scale models of the Triple Trilithon Outdoor Theater. I designed The Triple Trilithon Outdoor Theater to replicate ancient megalithic structures in use as well as form. My desire was to create a space that elicits inner harmony and builds community. Audience members and performers will benefit from participating in and with this space just as ancient peoples utilized their architecture to enhance their spirituality, sense of peace, attainment of knowledge and enjoyment
Lifshitz transition in the phase diagram of two-leg $t$-$J$ ladder systems at low filling
Creators: name: Bollmann, Steffen
name: Osterkorn, Alexander
name: König, Elio J.
name: Manmana, Salvatore R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use a combination of numerical matrix product states (MPS) and analytical approaches to investigate the phase diagram of the two-leg $t$-$J$ ladder in the region of low to intermediate fillings. We choose the same coupling strength along the leg- and rung-directions, but study the effect of adding a nearest-neighbor repulsion $V$. We observe a rich phase diagram and analytically identify a Lifshitz-like band filling transition, which can be associated to a numerically observed crossover from s-wave to d-wave like superconducting quasi-long range order (QLRO). Due to the strong interactions, the Lifshitz transition is smeared into a crossover region which separates two distinct Luttinger theories with unequal physical meaning of the Luttinger parameter. Our numerically exact MPS results spotlight deviations from standard Luttinger theory in this crossover region and is consistent with Luttinger theory sufficiently far away from the Lifshitz transition. At very low fillings, studying the Friedel-like oscillations of the local density identifies a precursor region to a Wigner crystal at small values of the magnetic exchange interaction $J/t$. We discuss analytically how tuning parameters at these fillings modifies the phase diagram, and find good agreement with MPS results.
description: 14 pages, 4 appendices, 17 figures
Determination of the top quark mass from the $t\bar t$ cross section measured by CMS at $\sqrt{s} = 7$ TeV
Creators: name: Aldaya, Maria
name: Lipka, Katerina
name: Naumann-Emme, Sebastian
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Higher-order QCD predictions are used to extract the top quark mass, both in the pole and in the $\bar{\mathrm{MS}}$ scheme, from the top quark pair production cross section measured in the dilepton final state. The analysed dataset corresponds to an integrated luminosity of 1.14 fb$^{-1}$ collected by the CMS experiment in 2011 in proton-proton collisions at $\sqrt{s} = 7$ TeV.
description: Presented at the 2011 Hadron Collider Physics symposium (HCP-2011), Paris, France, November 14-18 2011, 3 pages, 3 figures
Supplementary document for Demonstration of 3D Photon Correlation Spectroscopy in the hard X-ray regime - 5564948.pdf
Creators: name: Jo, Wonhyuk
name: Rysov, Rustam
name: WESTERMEIER, FABIAN
name: Walther, Michael
name: Mueller, Leonard
name: Philippi-Kobs, Andre
name: Riepp, Matthias
name: Marotzke, Simon
name: Lokteva, Irina
name: Sprung, Michael
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: Supplemental Document
Gravitational wave lensing as a probe of halo properties and dark matter
Creators: name: Tambalo, Giovanni
name: Zumalacárregui, Miguel
name: Dai, Liang
name: Cheung, Mark Ho-Yeuk
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Just like light, gravitational waves (GWs) are deflected and magnified by gravitational fields as they propagate through the Universe. However, their low frequency, phase coherence and feeble coupling to matter allow for distinct lensing phenomena, such as diffraction and central images, that are challenging to observe through electromagnetic sources. Here we explore how these phenomena can be used to probe features of gravitational lenses. We focus on two variants of the singular isothermal sphere, with 1) a variable slope of the matter density and 2) a central core. We describe the imprints of these features in the wave- and geometric-optics regimes, including the prospect of detecting central images. We forecast the capacity of LISA and advanced LIGO to study strongly lensed signals and measure the projected lens mass, impact parameter and slope or core size. A broad range of lens masses allows all parameters to be measured with precision up to $\sim 1/{\rm SNR}$, despite large degeneracies. Thanks to wave-optics corrections, all parameters can be measured, even when no central image forms. Although GWs are sensitive to projected quantities, we compute the probability distribution of lens redshift, virial mass and projection scale given a cosmology. As an application, we consider the prospect of constraining self-interacting and ultra-light dark matter, showing the regions of parameter space accessible to strongly-lensed GWs. The distinct GW signatures will enable novel probes of fundamental physics and astrophysics, including the properties of dark matter and the central regions of galactic halos.
description: 43 pages, 27 figures. Matches PRD version
What do women with eating disorders think about while they exercise? An investigation using ecological momentary assessment
Creators: name: Coniglio, Kathryn A.
Publisher: name: No Publisher Supplied
Year: 2023

description: Pathological exercise is a dangerous behavior that is often present across eating disorder diagnoses, and for which limited interventions currently exist. Although there is a growing body of theoretical and empirical investigations outlining behavioral and emotionally regulative aspects of pathological exercise, very little is known about the cognitive element of pathological exercise, including cognitions present during exercise itself. Therefore, the aim of this study was to investigate what women with elevated eating psychopathology think about while they exercise and to test whether thoughts predicted later engagement in eating disorder behaviors. I also tested unique associations between thoughts during exercise and exercise type, and whether exercise predicted positive emotion. Using ecological momentary assessment, I monitored thirty-one women for three weeks as they reported on their exercise and eating disorder behaviors. Broadly, exercise led to a significant increase in positive affect. I found that thinking about weight loss during exercise predicted later engagement in body checking behaviors. I also found that engagement in yoga/martial arts was associated with a decreased likelihood in thinking about weight loss during exercise and that doing weight-based exercises was associated with a decreased likelihood of thinking about calories but an increased likelihood in thinking about shape during exercise. These findings strengthen and extend previous literature showing that shape and weight concerns are etiologically significant for the development of pathological exercise. I found that not only may weight concerns be more important than shape concerns when motivating pathological exercise behavior, but also their influence in eating disorder continuance may exist on a much briefer time scale (i.e., within a day) than previous studies show. Clinically, future studies may seek to test interventions aimed at changing or restructuring cognitions during exercise to help shape adaptive exercise behavior during and after treatment.
Climate change and migration in Cambodia : an analysis of spatiotemporal trends in water availability and migration
Creators: name: Sigelmann, Laura Emilia
name: 0000-0002-4312-6987
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Climate change
Migration
Cambodia
Rainfall scarcity
Emerging Hot Spot Analysis
Geospatial analysis

description: Cambodia is a small fragile state in Southeast Asia that is highly exposed to the effects of climate change. While there is a burgeoning body of research on the effects of climate change on security outcomes, there is limited research on the relationship between climate change and migration, particularly in Cambodia. The purpose of this study is twofold: first, to analyze subnational climate vulnerabilities in Cambodia with a specific emphasis on water availability; second, to analyze the relationship between water availability and migration in Cambodia. The study first uses a mix of quantitative and qualitative data to establish the political, economic, and social conditions necessary for climate change to affect migration. Then, the study uses Esri’s Emerging Hot Spot Analysis tool to identify precipitation trends on a subnational level. Finally, the study uses qualitative and quantitative data, including focus group interviews, to analyze subnational migration patterns in relation to subnational precipitation patterns and provide a holistic picture of Cambodia’s climate-migration nexus. The study finds that precipitation is decreasing in the northwest provinces of Banteay Meanchey, Battambang, Oddar Meanchey, and Siem Reap, where the bulk of the population is reliant on traditional rice agriculture, which is highly vulnerable to the effects of climate change. The study also concludes that households that have experienced crop loss, drought, and poor rainfall are more likely to have a family member migrate the following year. If the northwest continues to experience a drying trend, it is likely that more individuals will migrate from these provinces in the future. Future research should address two things: first, how climate change projections for the country vary spatially and temporally; and second, how climate change and migration are quantitatively linked. Finally, the Cambodian government and international organizations should direct funding towards research to better understand the situation in northwestern Cambodia and policies that increase the resilience of the region’s agricultural communities