cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Regulation of the physiological consequences of neuroendocrine differentiation in prostate cancer by kinase and phosphatase cross talk
Creators: name: Rossi, Gina
Publisher: name: University of British Columbia
Year: 2011

description: Prostate cancer is a leading health concern among Canadian males, with one in seven Canadian men developing the disease in their lifetime and one in 27 dying from it. Localized prostatic disease can be treated with surgery, but once metastasis occurs, clinicians rely on the hormone dependent nature of the tumor for treatment. Androgen withdrawal therapy is very effective at limiting tumor growth; however, progression of the tumor to an androgen independent state is inevitable, and at the present time there is no effective therapy for this form of the disease. Neuroendocrine (NE) cells are post-mitotic, secretory cells found distributed throughout both normal and malignant prostate tissue. Increased NE cell content is associated with hormone refractory disease, and it is suspected that these NE cells play a role in the adaptation of surrounding cells to androgen withdrawal conditions through the secretion of paracrine factors. The research in this thesis was aimed towards understanding the biochemical mechanisms by which trans-differentiation of an adenocarcinoma cell to a NE cell occurs. By understanding the nature of this process, rationally designed therapeutic reagents can be developed that either block transdifferentiation of adenocarcinoma cells and inhibit the increase in NE cell content following androgen withdrawal or block the actions of NE cells that promote tumor progression. I used the Kinetworks™ Phospho-Site Screen KPSS 1.1 as well as the Human Operon Version 3.0 microarray to broadly profile changes in protein kinase regulation and mRNA expression levels occurring during NE differentiation of the human prostate cancer cell line model, LNCaP. I found that agents that induce NE differentiation in LNCaP cells cause a perturbation in the phospho-state of two downstream targets of the mammalian target of rapamycin (mTORC1), the ribosomal S6 kinase S6K1 and Rb, as well as increasing vascular endothelial growth factor (VEGF) mRNA expression. Both of these phenomena appear to involve the cAMP-dependent protein kinase PKA and a protein phosphatase PP2A family member. Since mTORC1 is considered to be a critical component in the control of tumourigenicity, and since increased VEGF is associated with advanced tumor progression, these findings appear to address some of the processes by which transdifferentiation of adenocarcinoma cells to NE cells may regulate prostate cancer progression.
Bounds for Hamiltonians with arbitrary kinetic parts
Creators: name: Semay, Claude
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A method is presented to compute approximate solutions for eigenequations in quantum mechanics with an arbitrary kinetic part. In some cases, the approximate eigenvalues can be analytically determined and they can be lower or upper bounds. A semiclassical interpretation of the generic formula obtained for the eigenvalues supports a new definition of the effective particle mass used in solid state physics. An analytical toy model with a Gaussian dependence in the momentum is studied in order to check the validity of the method.
description: Improved version with new refernces
Appraisal of heavy metal toxicity in surface water with human health risk by a novel approach: a study on an urban river in vicinity to industrial areas of Bangladesh
Creators: name: Proshad, Ram
name: Islam, Saiful
name: Tusher, Tanmoy Roy
name: Zhang, Dan
name: Khadka, Sujan
name: Gao, Jianing
name: Kundu, Satyajit
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Water quality is a big concern for the humankind as it is the most important natural resource. Water is polluted by increasing activities of population and the necessity to provide them with goods and services that use water as a vital resource. In this study, surface water samples were collected in the summer and the winter season from Rupsa river, Bangladesh, and pH, electrical conductivity (EC), Cr, Ni, Cu, As, Cd and Pb concentrations were analyzed to assess the metal toxicity, identify the possible sources and determine health risk from metals in water. During the the summer season, the mean concentrations of Cr, Pb, As, Cu, Ni and Cd were measured as 7.20 ± 0.613, 7.09 ± 0.904, 5.45 ± 0.441, 5.36 ± 0.471, 3.85 ± 0.694 and 0.975 ± 0.106 µg/L, respectively, whereas the concentrations were measured as 8.87 ± 0.756, 7.32 ± 0.93, 6.05 ± 0.490, 6.02 ± 0.529, 5.48 ± 0.986 and 1.38 ± 0.151 µg/L, respectively, during the the winter season. Source identification like correlation analysis, Principal component analysis (PCA) and cluster analysis (CA) were applied to identify the source of toxic metals in water. Total heavy metal toxicity load and heavy metal evaluation index values were found to be higher than permissible value except for Cu. According to the ecological risk index classification, 85% of the total samples were found to pose moderate ecological risks, while the rest 15% were found to pose low ecological risks during both seasons. As showed high non-carcinogenic risk on the basis of single element via oral exposure. The hazard index value for oral exposure by male, female and children was found to be 4.17E + 00, 3.67E + 00 and 8.64E + 00, respectively; indicating that non-carcinogenic effects are obvious to occur. The carcinogenic risks of Ni and As due to regular exposure via oral and dermal contact pathways were higher than the standard value (>1.0E-04) which anticipated possible cancer risks to male, female and children in the study area.
Cyphomyrmex costatus Mann 1922
Creators: name: Mera-Rodríguez, Daniela
name: Serna, Francisco
name: Sosa-Calvo, Jeffrey
name: Lattke, John
name: Rabeling, Christian
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Cyphomyrmex
Cyphomyrmex costatus

description: (21) Cyphomyrmex costatus Mann, 1922 Figure 6A, BMaterial examined. COLOMBIA: Antioquia • 4 gynes; Amalfi; 06°59′01″N, 075°22′06″W; alt. 975 m; 30 Jul. 1997; F. Sernaleg.; MEFLG 40837; UNAB 553, 3461, 4749; Tolima • 2 workers; Guamo; 04°02′05″N, 074°58′25″W; alt. 323 m; 19 Aug. 2003; F. Serna, E. Díaz leg.; UNAB 4749, 3461. Identification. Disc of first gastral tergum with strong longitudinal ridges on each side of midline; mid-pronotal tubercles absent; and posterodorsal margin of petiole nei- ther drawn out nor bidentate (Kempf 1965). Distribution.Cyphomyrmex costatus is continuously distributed throughout Central andnorthern South America, from the states of Oaxaca and Veracruz in Mexico, to the states of Amazonas and Pará in Brazil (Harada and Ketelhut 2009; Bezděčková et al. 2015).
description: Published as part of Mera-Rodríguez, Daniela, Serna, Francisco, Sosa-Calvo, Jeffrey, Lattke, John & Rabeling, Christian, 2020, A checklist of the non-leaf-cutting fungus-growing ants (Hymenoptera, Formicidae) from Colombia, with new biogeographic records, pp. 1205-1227 in Check List 16 (5) on page 1215, DOI: 10.15560/16.5.1205, http://zenodo.org/record/4059086
description: {"references": ["Kempf WW (1965) Arevision of the Neotropical fungus-growing ants of the genus Cyphomyrmex Mayr. Part II. Group of rimosus (Spinola) (Hym. Formicidae). Studia Entomologica 8: 161 - 200.", "Harada AY, Ketelhut SM (2009) Formigas da Reserva Ducke: um grupo ainda pouco estudado. In: Fonseca CRV, Magalhaes C, Ra- fael JA, Franklin E (Eds) Afauna de artropodes da Reserva Flo- restal Ducke: estado atual do conhecimento taxonomico e biolo- gico. Editora INPA, Manaus, 231 - 248.", "Bezdeckova K, Bezdecka P, Machar I (2015) Achecklist of the ants (Hymenoptera: Formicidae) of Peru. Zootaxa 4020 (1): 101 - 133. https: // doi. org / 10.11646 / zootaxa. 4020.1.4"]}
Lower Bounds on Communication Complexity
Creators: name: Duris, Pavol
name: Galil, Zvi
name: Schnitger, Georg
Publisher: name: Columbia University
Year: 1983
Subjects: Computer science

description: We prove the following four results on communication complexity: 1) For every k ≥ 2, the language Lk of encodings of directed graphs of out degree one that contain a path of length k+1 from the first vertex to the last vertex and can be recognized by exchanging O(k log n) bits using a simple k-round protocol requires exchanging Ω(n1/2/k4log3n) bits if any (k-1)- round protocol is used. 2) For every k ≥ 1 and for infinitely many n ≥ 1, there exists a collection of sets Lnk ⊆ {0,1}2n that can be recognized by exchanging O(k log n) bits using a k-round protocol, and any (k-1)-round protocol recognizing Lnk requires exchanging Ω(n/k) bits. 3) Given a set L ⊆ {0,1}2n, there is a set L ⊆{0,1}8n such that any (k-round) protocol recognizing L can be transformed to a (k-round) fixed partition protocol recognizing L with the same communication complexity, and vice versa. 4) For every integer function f, 1 ≤ f(n) ≤ n, there are languages recognized by a one round deterministic protocol exchanging f(n) bits, but not by any nondeterministic protocol exchanging f(n)-1 bits. The first two results show in an incomparable way an exponential gap between (k-1)-round and k-round protocols, settling a conjecture by Papadimitriou and Sipser. The third result shows that as long as we are interested in existence proofs, a fixed partition of the input is not a restriction. The fourth result extends a result by Papadimitriou and Sipser who showed that for every integer function f, 1 ≤ f(n) ≤ n, there is a language accepted by a deterministic protocol exchanging f(n) bits but not by any deterministic protocol exchanging f(n) - 1 bits.
Colorado water, August 2001
Creators: name: Flanagan, Marian
name: Blackledge, Michael
name: Miller, Shirley
name: Colorado Water Resources Research Institute, Publisher
Publisher: name: Mountain Scholar
Year: 2001
Subjects: subject: Water resources development -- Colorado
subject: Water use -- Colorado
subject: Water-supply -- Colorado
subject: Water-supply -- Management -- Colorado

description: The scope of the newsletter is devoted to enhancing communication between Colorado water users and managers and faculty at the research universities in the state.
description: Newsletter of the Water Center at Colorado State University.
Entanglement entropy dynamics of disordered quantum spin chains
Creators: name: Igloi, Ferenc
name: Szatmari, Zsolt
name: Lin, Yu-Cheng
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: By means of free fermionic techniques we study the time evolution of the entanglement entropy, S(t), of a block of spins in the random transverse-field Ising chain after a sudden change of the parameters of the Hamiltonian. We consider global quenches, when the parameters are modified uniformly in space, as well as local quenches, when two disconnected blocks are suddenly joined together. For a non-critical final state, the dynamical entanglement entropy is found to approach a finite limiting value for both types of quenches. If the quench is performed to the critical state, the entropy grows for an infinite block as S(t) \sim ln ln t. This type of ultraslow increase is explained through the strong disorder renormalization group method.
description: 8 pages, 8(+1) figures; published version
Breakdown of the integer and fractional quantum Hall states in a quantum point contact
Creators: name: Dillard, C.
name: Lin, X.
name: Kastner, M. A.
name: Pfeiffer, L. N.
name: West, K. W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The integer and fractional quantum Hall states are known to break down at high dc bias, exhibiting deviation from the ideal incompressible behavior. We measure breakdown of the ν= 2, 3, 4, 5 integer and the ν= 4/3 and 5/3 fractional states in a quantum point contact (QPC) of lithographic width ~600 nm. Dependence of the critical current on magnetic field, QPC gate voltage, and QPC width are presented. Of particular interest, the critical current of the 4/3 and 5/3 fractional states shows the opposite dependence on QPC width compared to the integer states. This previously unobserved result is not explained by current theories of breakdown.
Differential image motion in the short exposure regime
Creators: name: Kornilov, V.
name: Safonov, B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Whole atmosphere seeing β_0 is the most important parameter in site testing measurements. Estimation of the seeing from a variance of differential image motion is always biased by a non-zero DIMM exposure, which results in a wind smoothing. In the paper, the wind effects are studied within short exposure approximation, i.e. when the wind shifts turbulence during exposure by distance lesser than device aperture. The method of correction for this effect on the base of image motion correlation between adjacent frames is proposed. It is shown that the correlation can be used for estimation of the mean wind speed V_2 and atmospheric coherence time τ_0. Total power of longitudinal and transverse image motion is suggested for elimination of dependence on the wind direction. Obtained theoretical results were tested on the data obtained on Mount Shatdjatmaz in 2007--2010 with MASS/DIMM device and good agreement was found.
description: 11 pages, 8 figures. Accepted for publication in MNRAS
Systematisation Approach: Handling Insufficient Data Quality
Creators: name: Schröer, Tobias
name: Janßen, Jokim
name: Schuh, Günther
name: Stich, Volker
Publisher: name: Hannover : publish-Ing.
Year: 2023
Subjects: subject: Konferenzschrift
subject: Data Quality
subject: Insufficient Data
subject: Supply Chain Event Management
subject: SCEM
subject: Production Planning
subject: PPC
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Current megatrends such as globalisation and digitalisation are increasing complexity, making systems for well-founded and short-term decision support indispensable. A necessary condition for reliable decision-making is high data quality. In practice, it is repeatedly shown that data quality is insufficient, especially in master and transaction data. Moreover, upcoming approaches for data-based decisions consistently raise the required level of data quality. Hence, the importance of handling insufficient data quality is currently and will remain elementary. Since the literature does not systematically consider the possibilities in the case of insufficient data quality, this paper presents a general model and systematic approach for handling those cases in real-world scenarios. The model developed here presents the various possibilities of handling insufficient data quality in a process-based approach as a framework for decision support. The individual aspects of the model are examined in more detail along the process chain from data acquisition to final data processing. Subsequently, the systematic approach is applied and contextualised for production planning and supply chain event management, respectively. Due to their general validity, the results enable companies to manage insufficient data quality systematically.
Quantifying the influence of scientists and their publications: Distinguish prestige from popularity
Creators: name: Zhou, Yan-Bo
name: Lü, Linyuan
name: Li, Menghui
Publisher: name: arXiv
Year: 2011
Subjects: subject: Digital Libraries (cs.DL)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The number of citations is a widely used metric to evaluate the scientific credit of papers, scientists and journals. However, it does happen that a paper with fewer citations from prestigious scientists is of higher influence than papers with more citations. In this paper, we argue that from whom the paper is being cited is of higher significance than merely the number of received citations. Accordingly, we propose an interactive model on author-paper bipartite networks as well as an iterative algorithm to get better rankings for scientists and their publications. The main advantage of this method is twofold: (i) it is a parameter-free algorithm; (ii) it considers the relationship between the prestige of scientists and the quality of their publications. We conducted real experiments on publications in econophysics, and applied this method to evaluate the influences of related scientific journals. The comparisons between the rankings by our method and simple citation counts suggest that our method is effective to distinguish prestige from popularity.
description: 9 pages, 10 figures, 2 tables
Specification of 5G networks for agricultural use cases using the example of harvesters operated by swarm robotics
Creators: name: Walter, Tim Benedikt
name: Lörsch, Kerstin
name: Stroh, Max-Ferdinand
name: Stich, Volker
Publisher: name: Hannover : publish-Ing.
Year: 2023
Subjects: subject: Konferenzschrift
subject: 5G
subject: Swarm Robotics
subject: Smart Farming
subject: Sustainability
subject: Agriculture
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Feeding the growing world population is a scientific and economic challenge. The target variables to be optimised are the yield that can be produced on a given area and the reduction of the resources used for this purpose. High-wage countries are faced with the problem that the use of personnel is a significant cost driver. Developing countries, on the other hand, usually operate on much smaller field sizes, so that the work in the field is still strongly characterised by manual labour. One solution to meet these challenges is the use of smaller autonomous harvesting robots. These can be networked into a swarm of machines to work even larger fields. The networking of autonomous agricultural machines is a key use case for rural 5G networks. 5G technology can offer many advantages over older mobile communications standards and therefore make use cases more efficient or enable new ones. Various use cases are also conceivable in the field of agriculture, yet it is unclear how 5G networks can and must be specified for this purpose. In this paper, using the example of 5G-connected harvesters powered by swarm robotics, we present the challenges that have arisen and the specification that has been developed.
Representing Complex Physical Objects in Memory
Creators: name: Wasserman, Kenneth
name: Lebowitz, Michael
Publisher: name: Columbia University
Year: 1982
Subjects: Computer science

description: Researchers an artificial intelligence have proposed and implemented several representation systems for use in computer programs that "understand" natural language input. Noticeably lacking from these systems is a robust and concise method of representing complex physical objects. This paper describes a language independent scheme for encoding real-world objects in a manner that captures elements of how people describe them. Two major groups of objects are distinguished: ''unitary'' objects that are described by a single "shape-descriptor"; and "composite" objects that are represented by a frame-based system that focuses on the physical relations that exist among obiects. The heart of this scheme is a primitive-based framework that classifies physical relations into three fundamental categories with five possible properties. Our current work on RESEARCHER, a program that employs this scheme while reading patent abstracts, is also discussed.
Membrane clustering and the role of rebinding in biochemical signaling
Creators: name: Mugler, Andrew
name: Bailey, Aimee Gotway
name: Takahashi, Koichi
name: Wolde, Pieter Rein ten
Publisher: name: arXiv
Year: 2011
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Biological sciences

description: In many cellular signaling pathways, key components form clusters at the cell membrane. Although much work has focused on the mechanisms behind such cluster formation, the implications for downstream signaling remain poorly understood. Here, motivated by recent experiments, we study via particle-based simulation a covalent modification network in which the activating component is either clustered or randomly distributed on the membrane. We find that while clustering reduces the response of a single-modification network, clustering can enhance the response of a double-modification network. The reduction is a bulk effect: a cluster presents a smaller effective target to a substrate molecule in the bulk. The enhancement, on the other hand, is a local effect: a cluster promotes the rapid rebinding and second activation of singly active substrate molecules. As such, the enhancement relies upon frequent collisions on a short timescale, which leads to a diffusion coefficient at which the enhancement is optimal. We complement simulation with analytic results at both the mean-field and first-passage distribution levels. Our results emphasize the importance of spatially resolved models, showing that significant effects of spatial correlations persist even in spatially averaged quantities such as response curves.
description: 22 pages, 6 figures
Nucleon-nucleon interactions from dispersion relations: Elastic partial waves
Creators: name: Albaladejo, M.
name: Oller, J. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider nucleon-nucleon (NN) interactions from chiral effective field theory. In this work we restrict ourselves to the elastic NN scattering. We apply the N/D method to calculate the NN partial waves taking as input the one-pion exchange discontinuity along the left-hand cut. This discontinuity is amenable to a chiral power counting as discussed by Lacour, Oller and Meissner [Ann. Phys. (NY) 326, 241 (2011)], with one-pion exchange as its leading order contribution. The resulting linear integral equation for a partial wave with orbital angular momentum L>=2 is solved in the presence of L-1 constraints, so as to guarantee the right behavior of the D and higher partial waves near threshold. The calculated NN partial waves are based on dispersion relations and are independent of regulator. This method can also be applied to higher orders in the calculation of the discontinuity along the left-hand cut and extended to triplet coupled partial waves.
description: 8 pages, 13 figures. Some discussions have been enlarged. Final version to be published
Cyphomyrmex rimosus Spinola 1851
Creators: name: Mera-Rodríguez, Daniela
name: Serna, Francisco
name: Sosa-Calvo, Jeffrey
name: Lattke, John
name: Rabeling, Christian
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Cyphomyrmex
Cyphomyrmex rimosus

description: (26) Cyphomyrmex rimosus (Spinola, 1851) Figure 7C, DMaterial examined. COLOMBIA: Amazonas • 1 worker; La Pedrera; 01°35′00″S, 069°28′00″W; alt. 87 m; 29 Apr.–7 May 2001; A. Sabogal leg.; UNAB 4755; Antioquia • 5 workers; Amalfi; 06°47′43″N, 075° 07′56″W; alt. 1550 m; 27 Oct. 1997; F. Sernaleg.; ME- FLG 5843; Caquetá • 4 workers; Florencia; 01°30′4″N, 075°39′42″W; alt. 280 m; Sep. 2017; D. Cubillosleg.; UNAB 4754; Caquetá • 1 worker; La Montanita; 01°28′25″N, 075°32′51″W; alt. 612 m; 27 Dec. 2015; D. Meneses leg.; UNAB 3900; Cundinamarca • 1 worker; Choachi; 04°31′52″N, 073°55′33″W; alt. 1927 m; 04 Nov. 2013; M. Forero leg.; UNAB 4754; Huila • 1 worker; El Pital; 02°20′53″N, 075°47′55″W; alt. 921 m; 02 Nov. 2009; D. Briceno leg.; UNAB 4754. Identification. Large individuals, head width more than 0.62 mm; hairs of gaster coarse, not fully appressed and mostly separated by less than their own lengths; and basal groove of gaster distinct and more than twice as long as wide (Snelling and Longino 1992). Distribution. Similar to C. minutus, C. rimosus is also widely distributed in the Americas, its distribution ex- tends from southern United States of America, throughout Central and South America to Argentina (Buenos Aires and Mendoza) (Kempf 1972; Fernández and Sen- doya 2004). Athorough taxonomic study needs to test whether C. rimosus is a single biological species, or whether it is a complex of cryptic species.
description: Published as part of Mera-Rodríguez, Daniela, Serna, Francisco, Sosa-Calvo, Jeffrey, Lattke, John & Rabeling, Christian, 2020, A checklist of the non-leaf-cutting fungus-growing ants (Hymenoptera, Formicidae) from Colombia, with new biogeographic records, pp. 1205-1227 in Check List 16 (5) on page 1217, DOI: 10.15560/16.5.1205, http://zenodo.org/record/4059086
description: {"references": ["Snelling RR, Longino JT (1992) Revisionary notes on the fungusgrowing ants of the genus Cyphomyrmex, rimosus group (Hymenoptera: Formicidae: Attini). In: Quintero D, Aiello A (Eds) Insects of Panama and Mesoamerica: selected studies. Oxford University Press, Oxford, 479 - 494.", "Kempf WW (1972) Catalogo abreviado das formigas da regiao neotro- pical (Hymenoptera: Formicidae). Studia Entomologica 15: 1 - 344."]}
Evaluating Content Selection in Human- or Machine-Generated Summaries: The Pyramid Scoring Method
Creators: name: Passonneau, Rebecca J.
name: Nenkova, Ani
Publisher: name: Columbia University
Year: 2003
Subjects: Computer science

description: From the outset of automated generation of summaries, the difficulty of evaluation has been widely discussed. Despite many promising attempts, we believe it remains an unsolved problem. Here we present a method for scoring the content of summaries of any length against a weighted inventory of content units, which we refer to as a pyramid. Our method is derived from empirical analysis of human-generated summaries, and provides an informative metric for human or machine-generated summaries.
Jitter-Camera: High Resolution Video from a Low Resolution Detector
Creators: name: Ben-Ezra, Moshe
name: Zomet, Assaf
name: Nayar, Shree K.
Publisher: name: Columbia University
Year: 2004
Subjects: Computer science

description: Video cameras must produce images at a reasonable frame-rate and with a reasonable depth of field. These requirements impose fundamental physical limits on the spatial resolution of the image detector. As a result, current cameras produce videos with a very low resolution. The resolution of videos can be computationally enhanced by moving the camera and applying super-resolution reconstruction algorithms. However, a moving camera introduces motion blur, which limits super-resolution quality. We analyze this effect and derive a theoretical result showing that motion blur has a substantial degrading effect on the performance of super resolution. The conclusion is, that in order to achieve the highest resolution, motion blur should be avoided. Motion blur can be minimized by sampling the space-time volume of the video in a specific manner. We have developed a novel camera, called the jitter camera, that achieves this sampling. By applying an adaptive super-resolution algorithm to the video produced by the jitter camera, we show that resolution can be notably enhanced for stationary or slowly moving objects, while it is improved slightly or left unchanged for objects with fast and complex motions. The end result is a video that has a significantly higher resolution than the captured one.
Additional file 2 of Exosomal CagA from Helicobacter pylori aggravates intestinal epithelium barrier dysfunction in chronic colitis by facilitating Claudin-2 expression
Creators: name: Guo, Yinjie
name: Xu, Canxia
name: Gong, Renjie
name: Hu, Tingzi
name: Zhang, Xue
name: Xie, Xiaoran
name: Chi, Jingshu
name: Li, Huan
name: Xia, Xiujuan
name: Liu, Xiaoming
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2: Table S2. Antibodies for western blot, immunoprecipitation, and immunofluorescence in this study.
Secure Isolation and Migration of Untrusted Legacy Applications
Creators: name: Potter, Shaya
name: Nieh, Jason
name: Subhraveti, Dinesh Kumar
Publisher: name: Columbia University
Year: 2004
Subjects: Computer science

description: Sting applications often contain security holes that are not patched until after the system has already been compromised. Even when software updates are applied to address security issues, they often result in system services being unavailable for some time. To address these system security and availability issues, we have developed peas and pods. A pea provides a least privilege environment that can restrict processes to the minimal subset of system resources needed to run. This mechanism enables the creation of environments for privileged program execution that can help with intrusion prevention and containment. A pod provides a group of processes and associated users with a consistent, machine-independent virtualized environment. Pods are coupled with a novel checkpoint-restart mechanism which allows processes to be migrated across minor operating system kernel versions with different security patches. This mechanism allows system administrators the flexibility to patch their operating systems immediately without worrying over potential loss of data or needing to schedule system downtime. We have implemented peas and pods in Linux without requiring any application or operating system kernel changes. Our measurements on real world desktop and server applications demonstrate that peas and pods impose little overhead and enable secure isolation and migration of untrusted applications.
Process for Climate Strategy Development in Industrial Companies
Creators: name: Seyfried, Stefan
name: Weyand, Astrid
name: Kohne, Thomas
name: Weigold, Matthias
Publisher: name: Hannover : publish-Ing.
Year: 2023
Subjects: subject: Konferenzschrift
subject: Climate Strategies
subject: Climate Neutrality
subject: Carbon Footprint
subject: Transformation paths
subject: Transparency
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Climate neutrality has been gaining more and more attention as a long-term goal for companies among different industries. Since this goal can hardly be achieved in the short term and requires a complex interaction of different measures, it calls for a strategic approach. This article presents a strategy process for manufacturing companies striving for climate neutrality. The strategy process consists of three macro phases: preparation phase, strategy development phase and operational implementation phase, which are iteratively carried out. The macro phases are each divided into different meso phases, which include guiding questions that must be answered by different internal stakeholders and process participants. Moreover, necessary results are described which must be available after each phase to enter the next one. The procedure is based on existing models for the description of strategy processes and approaches from the field of energy and environmental management. It combines them into a strategic approach for deriving climate strategies of industrial companies. The developed strategy process is applied to and evaluated at the ETA factory at the Technical University of Darmstadt.
Apterostigma robustum Emery 1896
Creators: name: Mera-Rodríguez, Daniela
name: Serna, Francisco
name: Sosa-Calvo, Jeffrey
name: Lattke, John
name: Rabeling, Christian
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Apterostigma
Apterostigma robustum

description: (14) Apterostigma robustum Emery, 1896 Figure 5C, DMaterial examined COLOMBIA: Antioquia • 1 work- er; San Luis; 06°02′33.7″N, 074°59′39.9″W; alt. 1005 m; Mar. 1992; F. Sernaleg.; MEFLG 5170; Chocó • 4 workers; Quibdó; 05°40′40″N, 076°35′36″W; alt. 35 m; 23 Nov. 2001; J. Neita leg.; UNAB 4747; Vaupés • 3 gynes, 6 workers; Taraira; 01°04′00″S, 069°31′00″W; alt. 85 m; 14–20 May 2001, A. Sabogal leg.; UNAB 4746. Identification. Frontal lobes with each lateral margin convex and strongly curved ventrally; anterior margin of clypeus uniformly convex; mandible with 11 teeth that increase gradually in size towards the apical tooth; and propodeum in lateral view gradually higher than the metanotum (Lattke 1997). Distribution.Apterostigma robustum is distributed from Honduras in Central America south to Bolivia and Brazil, where it occurs in the states of Amazonas, Ma- ranhão, and Pará (Kempf 1972; Lattke 1997; Fernández and Sendoya 2004).
description: Published as part of Mera-Rodríguez, Daniela, Serna, Francisco, Sosa-Calvo, Jeffrey, Lattke, John & Rabeling, Christian, 2020, A checklist of the non-leaf-cutting fungus-growing ants (Hymenoptera, Formicidae) from Colombia, with new biogeographic records, pp. 1205-1227 in Check List 16 (5) on page 1213, DOI: 10.15560/16.5.1205, http://zenodo.org/record/4059086
description: {"references": ["Lattke JE (1997) Revision del genero Apterostigma Mayr: (Hymenoptera: Formicidae). Arquivos de Zoologia 34 (5): 121 - 221. https: // doi. org / 10.11606 / issn. 2176 - 7793. v 34 i 5 p 121 - 221", "Kempf WW (1972) Catalogo abreviado das formigas da regiao neotro- pical (Hymenoptera: Formicidae). Studia Entomologica 15: 1 - 344.", "Fernandez F, Sendoya S (2004) Synonymic list of Neotropical ants (Hymenoptera: Formicidae). Biota Colombiana 5 (1): 3 - 105."]}
High multiplicity pp events and J/ψ production at LHC
Creators: name: Ferreiro, E. G.
name: Pajares, C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the dependence of J/ψ production on the charged particle multiplicity in proton-proton collisions at LHC energies. We show that, in the framework of parton saturation or string interaction models, the hard J/ψ production exhibits a significant growth with the multiplicity, which is stronger than linear in the high density domain. This departure from linearity, that should affect any hard observable, applies for high multiplicity proton-proton collisions in the central rapidity region and is a consequence of the parton saturation or the strong interaction among colour ropes that take place at LHC energies. Our assumption, the existence of coherence effects present in proton-proton collisions at high energy, can also be checked by studying the particular shape of the probability distribution associated to the J/ψ production.
description: 7 pages, 2 figures
Challenges Of Production Planning And Control For Powder Bed Fusion Of Metal With Laser Beam: A Perspective From The Industry
Creators: name: Bauch, Lukas
name: Wilhelm, Andreas
name: Kolter, Moritz
name: Schleifenbaum, Johannes Henrich
Publisher: name: Hannover : publish-Ing.
Year: 2023
Subjects: subject: Konferenzschrift
subject: Powder Bed Fusion of Metal with Laser Beam
subject: Production Planning and Control
subject: Nesting
subject: Scheduling
subject: Production Management
subject: Production Technology
subject: Additive Manufacturing
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Due to technological advance, the Additive Manufacturing (AM) technology Powder Bed Fusion of Metal with Laser Beam (PBF-LB/M) is in widespread industrial use. PBF-LB/M offers the flexibility to generate different geometries in one build job independent of tools. Therefore, exploiting tool-dependent economies of scale is not required for efficient manufacturing of various complex geometries in small quantities. However, PBF LB/M production lines are capital intensive and include post-processing steps. Thus, high utilization and low work in process must be ensured to minimize costs, but reaching high utilization contradicts minimizing work in process and throughput time. In production planning and control (PPC), the trade-off between those production logistics key performance indicators (KPIs) is optimized. The advantage of flexibility to manufacture various geometries in one build job of PBF-LB/M comes with challenges for PPC. In this work, those challenges are analysed to derive implications for improvement, based on interviews with experts from the industry. Results show a need for PBF LB/M specific PPC. The need is higher the greater the technological control of PBF LB/M and the volume of a product program of a company are. Unlike for Conventional Manufacturing (CM), nesting and scheduling cannot be addressed separately in PPC for PBF LB/M. Thus, the optimization of production logistics KPIs is more complex due to more degrees of freedom. Combined with a typically shorter planning horizon for AM, this requires automated optimization software tools for combined nesting and scheduling. Currently, PPC that considers AM characteristics does not address CM steps in the post-process adequately, even though they cause a large proportion of effort and time. Furthermore, high automatization parallel to heterogenous manual tasks require a low number of workers with training in various skills.
Colorado water, December 2005
Creators: name: Blumanhourst, Gloria
name: Colorado Water Resources Research Institute, Publisher
Publisher: name: Mountain Scholar
Year: 2005
Subjects: subject: Water resources development -- Colorado
subject: Water use -- Colorado
subject: Water-supply -- Colorado
subject: Water-supply -- Management -- Colorado

description: The scope of the newsletter is devoted to enhancing communication between Colorado water users and managers and faculty at the research universities in the state.
description: Newsletter of the Water Center of Colorado State University.
Elastic Block Ciphers
Creators: name: Cook, Debra L.
name: Yung, Moti
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2004
Subjects: Computer science

description: We introduce a new concept of elastic block ciphers, symmetric-key encryption algorithms that for a variable size input do not expand the plaintext, (i.e., do not require plaintext padding), while maintaining the diffusion property of traditional block ciphers and adjusting their computational load proportionally to the size increase. Elastic block ciphers are ideal for applications where length-preserving encryption is most beneficial, such as protecting variable-length database entries or network packets. We present a general algorithmic schema for converting a traditional block cipher, such as AES, to its elastic version, and analyze the security of the resulting cipher. Our approach allows us to "stretch" the supported block size of a block cipher up to twice the original length, while increasing the computational load proportionally to the block size. Our approach does not allow us to use the original cipher as a "black box" (i.e., as an ideal cipher or a pseudorandom permutation as is used in constructing modes of encryption). Nevertheless, under some reasonable conditions on the cipher's structure and its key schedule, we reduce the security of the elastic version to that of the fixed size block cipher. This schema and the security reduction enable us to capitalize on secure ciphers and their already established security properties in elastic designs. We note that we are not aware of previous "reduction type" proofs of security in the area of concrete (i.e., non "black-box") block cipher design. Our implementation of the elastic version of AES, which accepts blocks of all sizes in the range 128 to 255 bits, was measured to be almost twice as fast when encrypting plaintext that is only a few bits longer than a full block (A128 bits), when compared to traditional "pad and block-encrypt" approach.
Characteristics for verifying 5G applications in production
Creators: name: Abbas, Murtaza
name: Stroh, Max
name: Stich, Volker
Publisher: name: Hannover : publish-Ing.
Year: 2023
Subjects: subject: Konferenzschrift
subject: 5G-Technology
subject: 5G use case
subject: Industrie 4.0
subject: Networked
subject: production
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: 5G offers the manufacturing industry a wireless, fast and secure transmission technology with high range, low latency and the ability to connect a large number of devices. Existing transmission technologies are reaching their limits due to the increasing number of networked devices and high demands on reliability, data volume, security and latency. 5G fulfills these requirements and also combines the potential and use cases of previous transmission technologies so that unwanted isolated solutions can be merged. Use cases of transmission technologies that previously required a multitude of solutions can now be realized with a single technology. However, the general literature often refers to 5G use cases that can also be realized over cables in particular. In this paper, a literature review presents the current state of research on the various 5G application scenarios in production . Furthermore, concrete characteristics of 5G use cases are identified and assigned to the identified application scenarios. The goal is to verify the identified 5G use cases and to work out their 5G relevance in order to be able to concretely differentiate them from already existing Industrie 4.0 applications.
Using Prosodic Features of Speech and Audio Localization in Graphical User Interfaces
Creators: name: Olwal, Alex
name: Feiner, Steven K.
Publisher: name: Columbia University
Year: 2003
Subjects: Computer science

description: We describe several approaches for using prosodic features of speech and audio localization to control inter-active applications. This information can be used for parameter control, as well as for disambiguating speech recognition. We discuss how characteristics of the spoken sentences can be exploited in the user interface; for example, by considering the speed with which the sentence was spoken and the presence of extraneous utterances. We also show how coarse audio localization can be used for low-fidelity gesture tracking, by inferring the speaker's head position.
Paratrachymyrmex diversus Mann 1916
Creators: name: Mera-Rodríguez, Daniela
name: Serna, Francisco
name: Sosa-Calvo, Jeffrey
name: Lattke, John
name: Rabeling, Christian
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Hexapoda
Hymenoptera
Formicidae
Paratrachymyrmex
Paratrachymyrmex diversus

description: (39) Paratrachymyrmex diversus (Mann, 1916) Figure 10A, BMaterial examined. COLOMBIA: Caquetá • 12 workers; Cartagena del Chaira; 01°22′02″N, 074°49′04″W; alt. 278 m; 28 Sep. 2016; UNAB members leg.; UNAB 4359; Caquetá • 12 workers; Florencia; 01°30′9.99″N, 075°36′23″W; alt. 250 m; 22 Sep. 2016; UNAB mem- bers leg.; UNAB 4359; Caquetá • 3 workers; Florencia; 01°30′9.99″N, 075°36′23″W; alt. 250 m; 21 Sep. 2016; F. Sernaleg.; UNAB4359; Caquetá • 1 worker; Florencia; 01° 37′11″N, 075°36′14″W; alt. 300 m; 31 Mar. 2016; F. Sernaleg.; UNAB 4359; Caquetá • 1 worker; Florencia; 01°30′9.99″N, 075°36′23″W; alt. 250 m; 22 Sep. 2016; UNAB members leg.; UNAB 4359; Caquetá • 12 workers; Florencia; 01°25′34″N, 075°30′59″W; alt. 267 m; Sep. 2017; D. Mera-Rodríguez leg.; UNAB 4764; Caquetá • 12 workers; Florencia; 01°25′34″N, 075°30′59″W; alt. 267 m; Sep. 2017; D. Cubillosleg.; UNAB 4764. Identification. Cephalic spines in lateral view robust, long and curved at apex; dorsum of propodeum with only one pair of, sometimes bifid, teeth; node of petiole in lat- eral view with oblique anterodorsal margin ending in a pair of robust posterodorsal spines; gaster with appressed hairs as well as short curved hairs; and hairs on legs ap- pressed and curved with the apex reaching the tegument (unpublished key by Kempf). Distribution. The distribution of P. diversus includes northern Brazil, Ecuador, and Venezuela (Kempf 1972; Brandão 1991; Fernández and Sendoya 2004; Ryder Wilkie et al. 2010). Our new distribution records for Colombia (Fig. 1D) corroborates the northern South American distribution for this species.
description: Published as part of Mera-Rodríguez, Daniela, Serna, Francisco, Sosa-Calvo, Jeffrey, Lattke, John & Rabeling, Christian, 2020, A checklist of the non-leaf-cutting fungus-growing ants (Hymenoptera, Formicidae) from Colombia, with new biogeographic records, pp. 1205-1227 in Check List 16 (5) on page 1223, DOI: 10.15560/16.5.1205, http://zenodo.org/record/4059086
description: {"references": ["Kempf WW (1972) Catalogo abreviado das formigas da regiao neotro- pical (Hymenoptera: Formicidae). Studia Entomologica 15: 1 - 344.", "Brandao CRF (1991) Adendos ao catalogo abreviado das formigas da regiao Neotropical (Hymenoptera: Formicidae). Revista Brasileira de Entomologia 35 (2): 319 - 412. https: // doi. org / 10.5281 / zenodo. 24565", "Fernandez F, Sendoya S (2004) Synonymic list of Neotropical ants (Hymenoptera: Formicidae). Biota Colombiana 5 (1): 3 - 105.", "Ryder Wilkie KT, Mertl AL, Traniello JFA (2010) Species diversity anddistribution patterns of the ants of Amazonian Ecuador. PLOS ONE 5 (10): e 13146. https: // doi. org / 10.1371 / journal. pone. 0013146"]}
Colorado water, September/October 2013
Creators: name: Middleton, Lindsey A.
name: Colorado Water Institute, Publisher
Publisher: name: Mountain Scholar
Year: 2013
Subjects: subject: Water resources development -- Colorado
subject: Water use -- Colorado
subject: Water-supply -- Colorado
subject: Water-supply -- Management -- Colorado

description: The newsletter is devoted to enhancing communication between Colorado water users and managers and faculty at the state's research universities.
description: Newsletter of the Water Center of Colorado State University. Theme: Water technology and innovations.