cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Compressive Acquisition of Linear Dynamical Systems
Creators: name: Sankaranarayanan, Aswin C.
name: Pavan  Turaga
name: Chellappa, Rama
name: Baraniuk, Richard G.
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: Computer Engineering
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Compressive sensing (CS) enables the acquisition and recovery of sparse signals and images at sampling rates significantly below the classical Nyquist rate. Despite significant progress in the theory and methods of CS, little headway has been made in compressive video acquisition and recovery. Video CS is complicated by the ephemeral nature of dynamic events, which makes direct extensions of standard CS imaging architectures and signal models difficult. In this paper, we develop a new framework for video CS for dynamic textured scenes that models the evolution of the scene as a linear dynamical system (LDS). This reduces the video recovery problem to first estimating the model parameters of the LDS from compressive measurements and then reconstructing the image frames. We exploit the low-dimensional dynamic parameters (the state sequence) and high-dimensional static parameters (the observation matrix) of the LDS to devise a novel compressive measurement strategy that measures only the time-varying parameters at each instant and accumulates measurements over time to estimate the time-invariant parameters. This enables us to lower the compressive measurement rate considerably. We validate our approach and demonstrate its effectiveness with a range of experiments involving video recovery and scene classification.
Random Forests of Interaction Trees for Estimating Individualized Treatment Effects in Randomized Trials
Creators: name: Su, Xiaogang
name: Peña, Annette T.
name: Liu, Lei
name: Levine, Richard A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: G.3
subject: 62G08

description: Assessing heterogeneous treatment effects has become a growing interest in advancing precision medicine. Individualized treatment effects (ITE) play a critical role in such an endeavor. Concerning experimental data collected from randomized trials, we put forward a method, termed random forests of interaction trees (RFIT), for estimating ITE on the basis of interaction trees (Su et al., 2009). To this end, we first propose a smooth sigmoid surrogate (SSS) method, as an alternative to greedy search, to speed up tree construction. RFIT outperforms the traditional `separate regression' approach in estimating ITE. Furthermore, standard errors for the estimated ITE via RFIT can be obtained with the infinitesimal jackknife method. We assess and illustrate the use of RFIT via both simulation and the analysis of data from an acupuncture headache trial.
description: 32 pages, 6 figures
[Letter, Napier, Francis, Baron Napier and Ettrick to Florence Nightingale, September 1, 1871]
Creators: name: Napier, Francis, Baron Napier And Ettrick, 1891-1898
Publisher: name: The University of British Columbia
Year: 2012

description: Napier, Francis, Baron Napier and Ettrick, Fern Hill, Ootacamund [India] to Florence Nightingale. Discussion of economic situation in India, problems in obtaining funds for health programmes. Discussion of hospitals and nursing education in India. Commentary on water supply and sanitation.
Control of inflammation in experimental bovine pneumonic pasteurellosis
Creators: name: Bureau, F.
name: Van De Weerdt, M. L.
name: Hanon, E.
name: Pastoret, P-P
name: Lekeux, P.
Publisher: name: The Bovine Practitioner
Year: 1998

description: An experimental model of bovine pneumonic pasteurellosis was used to compare the effects on lung mechanical, gas-exchange, biochemical and cellular parameters before and after a nonsteroidal and a steroidal anti-inflammatory drug. Eight Friesian calves were inoculated with Pasteurella haemolytica. After randomisation, 4 calves were treated with a nonsteroidal drug (ketoprofen) and 4 calves with a short-acting dexamethasone solution, all in combination with antibiotics for three days. The calves were inoculated a second time, three days after the last treatment. Flow cytometry was used to differentiate blood mononuclear cells and to measure oxidative burst capacity of anti-inflammatory cells in venous blood and in brochoalveolar lavage samples before and after inoculation and treatment. After the first inoculation, all calves had increased respiratory rates, rectal temperatures, increased neutrophil blood count, and a decline of the arterial pressure in oxygen and lung compliance. After treatment, rectal temperature dropped significantly (P < 0.05) and a higher arterial pressure in oxygen was found in both groups. However, there was only in the ketoprofen group a significant reduction of the tachypnea. After the second inoculation, a significant drop of the arterial pressure in oxygen and a significant higher respiratory rate was seen only for the dexamethasone group, while a significant neutrophilia was found only in the ketoprofen group. No important treatment differences of oxidative burst activity were evident using the flow cytometry technique due to the large within treatment group variability. In this model of lung inflammation, there was a significant higher impairment of the lung mechanics and the arterial pressure in oxygen after the second Pasteurella challenge for the dexamethasone group compared to the ketoprofen treated calves.
description: The Bovine Practitioner, No. 32.1 (1998 January)
Charging kinetics of dust particles with a variable mass
Creators: name: Trigger, S. A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: A kinetic equation for dust particles with a new kinetic variable - the mass of grains - is suggested for the description of processes with changing mass in dusty plasmas and neutral systems.
description: 3 pages. The text of report on IV European Workshop on Dusty and Colloidal Plasmas, June 3-5, 2000, Costa da Caparica - Portugal (to be published as special issue of Physica B or Physics Reports)
[Letter, Sir Bartle Frere to Florence Nightingale, October 19, 1871]
Creators: name: Frere, Bartle, 1815-1884
Publisher: name: The University of British Columbia
Year: 2012

description: Sir Barle Frere, India Offce to Florence Nightingale wishing to call and given her "latest news from Bomba". Enclosing letters from Mr. Crawford and Dr. Hewett.
Immune response to bovine respiratory disease vaccine immunogens in calves at entry to feedlot and impact on feedlot performance
Creators: name: Fulton, Robert W.
name: Cook, B. J.
name: Blood, K. Shawn
name: Confer, Anthony W.
name: Payton, Mark E.
name: Step, D. L.
name: Saliki, J. T.
name: Burge, Lurinda J.
name: Welsh, R. D.
Publisher: name: The Bovine Practitioner
Year: 2010

description: Predictors of feedlot performance including clinical illness (morbidity), treatments, cost of treatments, and economic return of calves in a retained ownership program were measured using testing of samples collected at entry from post-weaning calves. At the delivery point, cattle were processed and samples were collected for laboratory testing, including nasal swabs for viral and bacterial isolation, EDTA blood for viral isolation from peripheral blood leukocytes, and serums for antibody testing against bovine herpesvirus-1 (BHV-I), bovine viral diarrhea virus (BVDV) 1a and BVDV2a, parainfluenza-3 virus (PI-3V), bovine respiratory syncytial virus (BRSV), Mannheimia haemolytica whole cell (WC) antigen, M. haemolytica leukotoxin (LKT), and Pasteurella multocida outer membrane proteins (OMP). Feedlot performance records and carcass data obtained at the close of the feeding period revealed predictors of feedlot performance and economic return based on lower or higher levels of serum antibodies to several BRD pathogens. These were based on both individual animal comparisons and herd averages. On an individual animal basis, low antibodies to BVDV1a, BVDV2a, M. haemolytica WC, M. haemoytica LKT, P. multocida OMP, BHV-1, PI-3V, and BRSV were associated with one or more of the following: increased morbidity, increased number of treatments, increased treatment costs, and decreased net value to owner (carcass value minus total costs in the feedlot). On a herd basis, low antibodies to BVDVIa, BHV-I, P. multocida OMP, M. haemolytica WC, and M. haemolytica LKT were associated with one or more of the following: increased morbidity, increased number of treatments, increased treatment costs, and decreased net value to owner. These results reaffirm that post-weaning calves with increased immunity to (antibody levels) BVDV, BHV-I, PI-3V, BRSV, M. haemolytica, and P. multocida perform better in the feedlot with less effects clinically to these BRD pathogens and provide greater economic return to the owner. Management for the breeding cow-herd owner retaining calves for feedlot delivery should stress vaccination against these pathogens.
description: The Bovine Practitioner, Vol. 45, No. 1 (2011 Spring)
[Letter, Dr. John Sutherland to Florence Nightingale, November 10, 1871]
Creators: name: Sutherland, John, 1808-1891
Publisher: name: The University of British Columbia
Year: 2012

description: Dr. John Sutherland, [Calcutta?] to Florence Nightingale. Comments on Lord Napier's letter (See B 8). Discusses irrigation and sewage system and improvements necessary. Note by Florence Nightingale [C?] enclosed.
Seeds Buffering for Information Spreading Processes
Creators: name: Jankowski, Jarosław
name: Bródka, Piotr
name: Michalski, Radosław
name: Kazienko, Przemysław
Publisher: name: arXiv
Year: 2017
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Seeding strategies for influence maximization in social networks have been studied for more than a decade. They have mainly relied on the activation of all resources (seeds) simultaneously in the beginning; yet, it has been shown that sequential seeding strategies are commonly better. This research focuses on studying sequential seeding with buffering, which is an extension to basic sequential seeding concept. The proposed method avoids choosing nodes that will be activated through the natural diffusion process, which is leading to better use of the budget for activating seed nodes in the social influence process. This approach was compared with sequential seeding without buffering and single stage seeding. The results on both real and artificial social networks confirm that the buffer-based consecutive seeding is a good trade-off between the final coverage and the time to reach it. It performs significantly better than its rivals for a fixed budget. The gain is obtained by dynamic rankings and the ability to detect network areas with nodes that are not yet activated and have high potential of activating their neighbours.
description: Jankowski, J., Br\'odka, P., Michalski, R., & Kazienko, P. (2017, September). Seeds Buffering for Information Spreading Processes. In International Conference on Social Informatics (pp. 628-641). Springer
A scaling law for aeolian dunes on Mars, Venus, Earth, and for subaqueous ripples
Creators: name: Claudin, Philippe
name: Andreotti, Bruno
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The linear stability analysis of the equations governing the evolution of a flat sand bed submitted to a turbulent shear flow predicts that the wavelength $λ$ at which the bed destabilises to form dunes should scale with the drag length $L_{\rm drag} = \frac{ρ_s}{ρ_f} d$. This scaling law is tested using existing and new measurements performed in water (subaqueous ripples), in air (aeolian dunes and fresh snow dunes), in a high pressure CO$_2$ wind tunnel reproducing conditions close to the Venus atmosphere and in the low pressure CO$_2$ martian atmosphere (martian dunes). A difficulty is to determine the diameter of saltating grains on Mars. A first estimate comes from photographs of aeolian ripples taken by the rovers Opportunity and Spirit, showing grains whose diameters are smaller than on Earth dunes. In addition we calculate the effect of cohesion and viscosity on the dynamic and static transport thresholds. It confirms that the small grains visualised by the rovers should be grains experiencing saltation. Finally, we show that, within error bars, the scaling of $λ$ with $L_{\rm drag}$ holds over almost five decades. We conclude with a discussion on the time scales and velocities at which these bed instabilities develop and propagate on Mars.
description: 27 pages, 10 figures, resubmitted to `Earth and Planetary Science Letters' with addition data and enlarged discussion
Perfecting the Growth and Transfer of Large Single-Crystal CVD Graphene: A Platform Material for Optoelectronic Applications
Creators: name: Miseikis, Vaidotas
name: Xiang, Shaohua
name: Roddaro, Stefano
name: Heun, Stefan
name: Coletti, Camilla
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work we demonstrate the synthesis of millimetre-sized single-crystals of graphene, achievable in a commercially-available cold-wall CVD reactor, and several different approaches to transfer it from the growth substrate to a target substrate of choice. We confirm the high crystal quality of this material using various characterisation techniques, including optical and scanning electron microscopy as well as Raman spectroscopy. By performing field effect and quantum Hall effect measurements we demonstrate that the electronic properties of such single-crystals are comparable to those of ideal mechanically exfoliated flakes of graphene. Several applications of this high-quality material are also reviewed.
description: 7 pages, 8 figures
Compression of QRS complexes using Hermite expansion
Creators: name: Sandryhaila, Aliaksei
name: Kovacevic, Jelena
name: Puschel, Markus
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: Computer Engineering
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We propose an algorithm for the compression of ECG signals, in particular QRS complexes, based on the expansion of signals with compact support into a basis of discrete Hermite functions. These functions are obtained by sampling continuous Hermite functions, previously used for the compression of ECG signals. Our algorithm uses the theory of signal models based on orthogonal polynomials, and achieves higher compression ratios compared with previously reported algorithms, both those using Hermite functions, as well as those using the discrete Fourier and discrete cosine transforms.
title: ÐÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÐ°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð±Ð°Ð»ÐºÐ¸ Ð³Ð»Ð°Ð²Ð½Ð¾Ð¹ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Designing the reaction beam of the main transmission of the car
Creators: name: ÐÑÑÐºÑÐ½Ð¾Ð², ÐÐ°ÑÐ²ÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: ÑÑÐ°Ð½ÑÐ¼Ð¸ÑÑÐ¸Ñ
Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ñ
ÑÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ°ÑÑÐµÑ
Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ½ÑÐµ ÑÐ°ÑÑÐµÑÑ
ÑÐµÐ°ÐºÑÐ¸Ð²Ð½Ð°Ñ Ð±Ð°Ð»ÐºÐ°
Ð¸Ð·Ð³Ð¸Ð± Ð±Ð°Ð»ÐºÐ¸
Ð·Ð°Ð´Ð½ÐµÐ¿ÑÐ¸Ð²Ð¾Ð´Ð½ÑÐ¹ Ð»ÐµÐ³ÐºÐ¾Ð²Ð¾Ð¹ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»Ñ
3D Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ.
transmission
optimization
static calculation
strength calculations
reaction beam
fem
modeling

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ ÑÐµÐ°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð±Ð°Ð»ÐºÐ¸ Ð³Ð»Ð°Ð²Ð½Ð¾Ð¹ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»Ñ. ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ: 1. ÐÐ·ÑÑÐµÐ½Ð¸Ðµ ÑÐ°Ð·Ð½ÑÑ Ð²Ð¸Ð´Ð¾Ð² ÑÑÐ°Ð½ÑÐ¼Ð¸ÑÑÐ¸Ð¹ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»Ñ. 2. ÐÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¸ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð´ÐµÑÐ°Ð»ÐµÐ¹ ÑÐµÐ°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð±Ð°Ð»ÐºÐ¸ Ð»ÐµÐ³ÐºÐ¾Ð²Ð¾Ð³Ð¾ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»Ñ. 3. Ð¡Ð±Ð¾ÑÐºÐ° Ð´ÐµÑÐ°Ð»ÐµÐ¹ Ð² ÑÐ±Ð¾ÑÐ¾ÑÐ½ÑÑ ÐµÐ´Ð¸Ð½Ð¸ÑÑ. 4. Ð¡Ð¾Ð·Ð´Ð°Ð½Ð¸Ðµ Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸ Ð½Ð° ÑÐµÐ°ÐºÑÐ¸Ð²Ð½ÑÑ Ð±Ð°Ð»ÐºÑ Ð¸ ÑÐµÐ´ÑÐºÑÐ¾Ñ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»Ñ. 5. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ðµ ÑÐ°ÑÑÑÑÐ¾Ð² Ñ Ð¿Ð¾ÑÐ»ÐµÐ´ÑÑÑÐ¸Ð¼ Ð°Ð½Ð°Ð»Ð¸Ð·Ð¾Ð¼ ÐºÐ°ÑÐµÑÑÐ²Ð° ÑÐ¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ Ð±Ð°Ð»ÐºÐ¸. ÐÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ 3D-Ð¼Ð¾Ð´ÐµÐ»Ð¸ ÑÐµÐ°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð±Ð°Ð»ÐºÐ¸ Ð»ÐµÐ³ÐºÐ¾Ð²Ð¾Ð³Ð¾ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»Ñ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»Ð¾ÑÑ Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ðµ ÐÐÐÐÐÐ¡-3D. ÐÐ½Ð°Ð»Ð¸Ð· Ð½Ð° Ð¿ÐµÑÐµÐ¼ÐµÑÐµÐ½Ð¸Ðµ ÑÐµÐ´ÑÐºÑÐ¾ÑÐ° Ð² Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸ Ð¾Ñ ÑÐºÑÑÑÐ¸Ð²Ð°Ð½Ð¸Ñ Ð±Ð°Ð»ÐºÐ¸ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»Ñ Ð¿ÑÐ¾Ð²ÐµÐ´ÑÐ½ Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ðµ ANSYS Workbench. ÐÐ¾ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ°Ð¼ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð±ÑÐ»Ð° Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð° Ð¾ÑÐµÐ½ÐºÐ° ÑÐ¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ ÑÐµÐ°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð±Ð°Ð»ÐºÐ¸.
description: This work is devoted to the design and research of the design of the reaction beam of the main transmission of the car. Tasks that were solved during the research: 1. Study of different types of car transmissions. 2. Design and modeling of details of the reaction beam of a passenger car. 3. Assembly of parts into an assembly unit. 4. Creation of a mathematical model of the load on the reaction beam and gearbox of the car. 5. Carrying out calculations with subsequent analysis of the quality of the designed beam. The design of a 3D model of the reaction beam of a passenger car was carried out in the COMPASS-3D program. The analysis of the movement of the gearbox depending on the twisting of the car beam was carried out in the ANSYS Workbench program. Based on the results of the analysis, an assessment of the designed reaction beam was carried out.
The very red afterglow of GRB 000418 - further evidence for dust extinction in a GRB host galaxy
Creators: name: Klose, S.
name: Stecklum, B.
name: Masetti, N.
name: Pian, E.
name: Palazzi, E.
name: Henden, A. A.
name: Hartmann, D. H.
name: Fischer, O.
name: Gorosabel, J.
name: Sanchez-Fernandez, C.
name: Butler, D.
name: Ott, Th.
name: Hippler, S.
name: Kasper, M.
name: Weiss, R.
name: Castro-Tirado, A.
name: Greiner, J.
name: Bartolini, C.
name: Guarnieri, A.
name: Piccioni, A.
name: Benetti, S.
name: Ghinassi, F.
name: Magazzu, A.
name: Hurley, K.
name: Cline, T.
name: Trombka, J.
name: McClanahan, T.
name: Starr, R.
name: Goldsten, J.
name: Gold, R.
name: Mazets, E.
name: Golenetskii, S.
name: Noeske, K.
name: Papaderos, P.
name: Vreeswijk, P. M.
name: Tanvir, N.
name: Oscoz, A.
name: Munnoz, J. M.
name: Cerón, J. M. Castro
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report near-infrared and optical follow-up observations of the afterglow of the Gamma-Ray Burst 000418 starting 2.5 days after the occurrence of the burst and extending over nearly seven weeks. GRB 000418 represents the second case for which the afterglow was initially identified by observations in the near-infrared. During the first 10 days its R-band afterglow was well characterized by a single power-law decay with a slope of 0.86. However, at later times the temporal evolution of the afterglow flattens with respect to a simple power-law decay. Attributing this to an underlying host galaxy we find its magnitude to be R=23.9 and an intrinsic afterglow decay slope of 1.22. The afterglow was very red with R-K=4 mag. The observations can be explained by an adiabatic, spherical fireball solution and a heavy reddening due to dust extinction in the host galaxy. This supports the picture that (long) bursts are associated with events in star-forming regions.
description: Accepted for publication in The Astrophysical Journal. 12 pages; citations & references updated; minor textual changes
Additional file 11 of Identification and integrative analysis of ACLY and related gene panels associated with immune microenvironment reveal prognostic significance in hepatocellular carcinoma
Creators: name: Xu, Yunfeng
name: Zhang, Ze
name: Xu, Da
name: Yang, Xin
name: Zhou, Lina
name: Zhu, Ying
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 11: Figure S11. Relationships among ACLY expression level and TIIC level in TCGA cohort. Neutrophils and macrophages seemed to have an increased number of positive correlations in various kinds of malignancies. While infiltration level of NK cell and CD8+ T cell were negatively correlated with ACLY expression. This may explain the reason why high ACLY expression is associated with poor prognosis. Mechanism study is needed for further consolidation.
[Letter, Florence Nightingale to Mary Mohl, November 27, 1871]
Creators: name: Nightingale, Florence, 1820-1910
Publisher: name: The University of British Columbia
Year: 2012

description: Florence Nightingale, 35 South Street, Park Lane, London W. to Mary Mohl (nee Clarke). Notes on cats and their passage to Paris. Inquires about Julius Mohl and asks how his book on religion is progressing. Asks for a friend's address from Julius Mohl (had asked for it previously). Notes about Michael Faraday, his experiments with electricity and on the government.
KMD Sag
Creators: Fredericia gl. kommune
Fredericia
Publisher: name: Rigsarkivet
Year: 2024

description: I KMD Sag EDH har brugerne adgang til at se/læse eller sagsbehandle sager, journalnotater, adviser (erindringer) inden for deres arbejdsområde. Derudover modtager brugerne også ’dagens post’. Brugerne har forskellige rolleprofiler og derved har de forskellige adgange til at se/læse, registrere og sagsbehandle ind i systemet.
Phase/Antiphase Interaction – The Fundamental Gravitational Mechanism in the Oscillatory Universe in the MMSI concept
Creators: name: LAZAREV, SERGIU
Publisher: name: Zenodo
Year: 2025
Subjects: Gravitational Resonance 2. Quantum Vacuum Structure 3. Modular Field Dynamics 4. Nonlocal Interactions 5. Subquantum Oscillators 6. Emergent Gravity 7. Logical Phase Synchronization 8. Twin Quantum Computing (TQC) 9. Dark Matter Alternatives 10. Informational Field Theory

description: Abstract

 

We introduce a new theoretical framework in which gravitation emerges as a result of phase/antiphase interactions within an oscillatory structure of the Universe. Unlike classical models where gravity is treated as a curvature of spacetime or a force mediated by virtual particles, the MMSI (Mechanica Modulară Subcuantică Informațională) concept describes gravitation as a systemic synchronization of informational oscillators distributed across a multidimensional subquantum field.

 

In this model, mass-bearing structures do not curve spacetime, but instead modulate their local oscillatory phase. When two or more systems enter a state of antiphase resonance, a gravitational potential is generated not by attraction, but by phase-driven contraction of the oscillatory field between them.

 

We derive a set of conditions under which phase–antiphase alignment produces gravitational effects equivalent to Newtonian and relativistic predictions, while also offering an explanation for anomalies such as galaxy rotation curves and dark energy, without invoking dark matter or metric expansion.

 

This phase-based gravitation model opens new avenues for understanding the deep structure of the Universe as a resonant informational system, and suggests that gravity is fundamentally a logical interaction, not a mechanical one.
Additional file 1 of Clinical features and outcomes of COVID-19 and dengue co-infection: a systematic review
Creators: name: Tsheten, Tsheten
name: Clements, Archie C. A.
name: Gray, Darren J.
name: Adhikary, Ripon K.
name: Wangdi, Kinley
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: FOS: Biological sciences
subject: Computational Biology

description: Additional file 1. Clinical and laboratory characteristics of SARS-CoV-2 and dengue virus co-infection.
Normal ordering and noncommutativity in open bosonic strings
Creators: name: Chakraborty, Biswajit
name: Gangopadhyay, Sunandan
name: Hazra, Arindam Ghosh
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Noncommutativity in an open bosonic string moving in the presence of a background Neveu-Schwarz two-form field $B_{μν}$ is investigated in a conformal field theory approach, leading to noncommutativity at the boundaries. In contrast to several discussions, in which boundary conditions are taken as Dirac constraints, we first obtain the mode algebra by using the newly proposed normal ordering, which satisfies both equations of motion and boundary conditions. Using these the commutator among the string coordinates is obtained. Interestingly, this new normal ordering yields the same algebra between the modes as the one satisfying only the equations of motion. In this approach, we find that noncommutativity originates more transparently and our results match with the existing results in the literature.
description: 10 pages latex, references added
title: 01_2164
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Food Recognition using Fusion of Classifiers based on CNNs
Creators: name: Aguilar, Eduardo
name: Bolaños, Marc
name: Radeva, Petia
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: With the arrival of convolutional neural networks, the complex problem of food recognition has experienced an important improvement in recent years. The best results have been obtained using methods based on very deep convolutional neural networks, which show that the deeper the model,the better the classification accuracy will be obtain. However, very deep neural networks may suffer from the overfitting problem. In this paper, we propose a combination of multiple classifiers based on different convolutional models that complement each other and thus, achieve an improvement in performance. The evaluation of our approach is done on two public datasets: Food-101 as a dataset with a wide variety of fine-grained dishes, and Food-11 as a dataset of high-level food categories, where our approach outperforms the independent CNN models.
Alara australiensis Zelazny & Webb 2011, sp. nov.
Creators: name: Zelazny, B.
name: Webb, M. D.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Derbidae
Alara
Alara australiensis

description: Alara australiensis Zelazny, sp. nov.
(Fig. 128)
 Description. Forewings 2.2 times longer than wide, length about 3.6 mm. Colour white to stramineous. Carinae in front and above eyes greyish purple. Tip of rostrum, tips of fore and middle femora, and tips of all tibiae greyish brown; an additional grey-brown ring on middle of first and second tibiae. Forewings white, powdered, with two very faintly infuscated bands crossing them, veins white, but a faint, short orange section on base of costa, and a faint, brown mark on base of Sc+R+M. Antennae twice as long as wide, rostrum surpassing middle of abdomen. Forewings with Ms1 branched slightly before its middle, bases of Ms1 and Cu1 connected by a cross-vein.
 Etymology. Derived from Australia, the latinized species name (australiensis, -iensis, -iense) is an adjective.
 Type material. Holotype ♀ (forewing 3.6 mm), AUSTRALIA; labels: 1) Kuranda/ QLd/ May 04/ F.P. Dodd 2) Queensland / F.P. Dodd / 1902-319 (BMNH).
 Distribution. Australia (Queensland).
 Diagnosis. Alara australiensis is similar to A. hyalina (Melichar) from the Philippines and A. linigera sp. nov. from New Guinea. It can be distinguished from these by the dark rings at the middle of the tibiae of the first two pairs of legs.
description: Published as part of Zelazny, B. & Webb, M. D., 2011, 3071, pp. 1-307 in Zootaxa 3071 on page 19
Comparison of two methods for design centering
Creators: name: Vidigal, Luis M.
name: Director, Stephen W.
Publisher: name: Carnegie Mellon University
Year: 1981
Subjects: subject: Computer Engineering
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: technical report
A mechanical model that exhibits a gravitational critical radius
Creators: name: McDonald, Kirk T.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Circular orbits of a particle sliding on a frictionless surface of revolution about a vertical axis are unstable below a critical radius if the curvature of the surface satisfies a specified condition. This behavior can be realized in a mechanical model, which give a glimpse of the greater complexity of particle orbits in curved rather than flat spacetime.
Bovine viral diarrhea virus (BVDV) status in cow-calf herds and associations with biosecurity and production practices among Montana beef producers
Creators: name: Nickell, Jason S.
name: White, Brad J.
name: Larson, Robert L.
name: Renter, David G.
name: Sanderson, Mike W.
name: Peck, Clint
Publisher: name: The Bovine Practitioner
Year: 2010

description: Bovine viral diarrhea virus (BVDV) manifests in several clinical syndromes. Cattle persistently infected (PI) with BVDV are lifelong shedders and the primary reservoir of the virus in the herd. The Montana BVD-PI Herd Biosecurity Program assists Montana beef producers with BVDV education, detection, and prevention. A survey was conducted to determine associations among specific biosecurity and management practices and herd BVDV status. Of the 585 beef herds enrolled in the program from 2006-2009, 6.5% (n=38) detected greater than or equal to 1 PI animal. Among these positive herds, the within-herd PI prevalence ranged from 0.12% to 20.0%. Among the respondent herds with known BVDV status (n=230), 4.3% (n=10) were previously diagnosed with greater than or equal to 1 PI animal. Herds that annually vaccinated home-grown heifers and bulls prior to introduction to the resident herd displayed a significantly reduced risk of being BVDV positive (P less than 0.10). Producers with high self-perceived BVDV knowledge were more likely (P less than 0.10) to annually vaccinate the resident herd for BVDV, less likely (P less than 0.10) to participate in communal grazing practices from breeding to weaning, but more likely (P less than 0.10) to transport pregnant heifers off-site with subsequent reintroduction to the resident herd. These data suggest that although beef producers in Montana engage in management practices potentially increasing the risk of BVDV introduction, educated producers have taken steps to mitigate that risk.
description: The Bovine Practitioner, Vol. 45, No. 1 (2011 Spring)
Charge exchange in galaxy clusters
Creators: name: Gu, Liyi
name: Mao, Junjie
name: de Plaa, Jelle
name: Raassen, A. J. J.
name: Shah, Chintan
name: Kaastra, Jelle S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Though theoretically expected, the charge exchange emission from galaxy clusters has not yet been confidently detected. Accumulating hints were reported recently, including a rather marginal detection with the Hitomi data of the Perseus cluster. As suggested in Gu et al. (2015), a detection of charge exchange line emission from galaxy clusters would not only impact the interpretation of the newly-discovered 3.5 keV line, but also open up a new research topic on the interaction between hot and cold matter in clusters. We aim to perform the most systematic search for the O VIII charge exchange line in cluster spectra using the RGS on board XMM. We introduce a sample of 21 clusters observed with the RGS. The dominating thermal plasma emission is modeled and subtracted with a two-temperature CIE component, and the residuals are stacked for the line search. The systematic uncertainties in the fits are quantified by refitting the spectra with a varying continuum and line broadening. By the residual stacking, we do find a hint of a line-like feature at 14.82 A, the characteristic wavelength expected for oxygen charge exchange. This feature has a marginal significance of 2.8 sigma, and the average equivalent width is 2.5E-4 keV. We further demonstrate that the putative feature can be hardly affected by the systematic errors from continuum modelling and instrumental effects, or the atomic uncertainties of the neighbouring thermal lines. Assuming a realistic temperature and abundance pattern, the physical model implied by the possible oxygen line agrees well with the theoretical model proposed previously to explain the reported 3.5 keV line. If the charge exchange source indeed exists, we would expect that the oxygen abundance is potentially overestimated by 8-22% in previous X-ray measurements which assumed pure thermal lines.
description: accepted for publication in A&A
Additional file 13 of Identification and integrative analysis of ACLY and related gene panels associated with immune microenvironment reveal prognostic significance in hepatocellular carcinoma
Creators: name: Xu, Yunfeng
name: Zhang, Ze
name: Xu, Da
name: Yang, Xin
name: Zhou, Lina
name: Zhu, Ying
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 13: Figure S13. T-SNE analysis for ACLY and CD276 expression subtypes. 361 TCGA HCC patient samples were enrolled to explore the stratification value of ACLY and CD276 through transcriptomic expression. The subjects are color-coded with high expression level (n = 180) and low expression level (n = 181).
[Letter, Florence Nightingale to Mary Mohl, July 30, 1872]
Creators: name: Nightingale, Florence, 1820-1910
Publisher: name: The University of British Columbia
Year: 2012

description: Florence Nightingale, Embley Park, Hampshire to Mary Mohl (nee Clarke). Discusses the death of her dear friend Charles H. Bracebridge and the future of his widow. Incomplete - closing portion missing.
Efficacy of a non-adjuvanted, modified-live virus vaccine in calves with maternal antibodies against a virulent bovine viral diarrhea virus type 2a challenge seven months following vaccination
Creators: name: Stevens, Elliot T.
name: Brown, Michael S.
name: Burdett, William W.
name: Bolton, Michael W.
name: Nordstrom, Scott T.
name: Chase, Christopher C. L.
Publisher: name: The Bovine Practitioner
Year: 2010

description: In the presence of maternal antibodies, 26 calves three days of age were either vaccinated (n=15) with a single dose of a non-adjuvanted, pentavalent, modified-live vaccine containing bovine herpes virus-1, bovine respiratory syncytial virus, bovine viral diarrhea virus 1a (BVDV1a), bovine viral diarrhea virus 2a (BVDV2a), and bovine parainfluenza-3, or sham vaccinated with sterile saline (n=11). At approximately seven months post-vaccination, when vaccinates and non-vaccinates were seronegative to BVDV1a and BVDV2a antibodies, all calves were intranasally challenged with a virulent BVDV2a (strain 1373). Clinical signs of BVDV infection were monitored beginning three days prior to challenge and concluded on day 21 after challenge. Calves vaccinated in the face of maternal antibodies (IFOMA) were less impacted by the challenge. Based on clinical parameters, vaccinates had reduced clinical scores, rectal temperature, weight loss, and mortality compared to sham-vaccinated animals. Vaccinated animals had higher levels of circulating white blood cells and fewer animals were viremic than sham-vaccinated animals. This study demonstrated that a calf as young as three days of age when vaccinated IFOMA can be protected against a virulent BVDV2a challenge with a non-adjuvanted, pentavalent vaccine.
description: The Bovine Practitioner, Vol. 45, No. 1 (2011 Spring)
On the number of circuits in random graphs
Creators: name: Marinari, Enzo
name: Semerjian, Guilhem
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We apply in this article (non rigorous) statistical mechanics methods to the problem of counting long circuits in graphs. The outcomes of this approach have two complementary flavours. On the algorithmic side, we propose an approximate counting procedure, valid in principle for a large class of graphs. On a more theoretical side, we study the typical number of long circuits in random graph ensembles, reproducing rigorously known results and stating new conjectures.
description: 30 pages
Evaluation of the onset of protective immunity from administration of a modified-live, non-adjuvanted vaccine prior to intranasal challenge with bovine herpesvirus-1
Creators: name: Burdett, William W.
name: Bolton, Michael W.
name: Kesl, Lyle
name: Nordstrom, Scott T.
name: Renter, David G.
name: Roth, James A.
name: Saltzman, Ryan
name: Xue, Wenzhi
Publisher: name: The Bovine Practitioner
Year: 2010

description: Study objectives were to determine if subcutaneous administration of a modified-live, non-adjuvanted vaccine containing bovine herpesvirus-1 (BHV-1) at five, three, or two days pre-challenge, would reduce clinical signs, rectal temperatures, and viral shedding, and enhance serological response to BETV-1. Colostrum-deprived, neonatal calves (n=48) were randomly assigned to six treatment groups, each containing eight calves. Treatment groups were based on administration of vaccine (VAC) or saline controls (CON) and day of administration (day-5, -3 or -2) relative to intranasal BHV-1 challenge (day 0). Following challenge, calves were monitored for clinical signs, rectal temperature, seroconversion, and quantity of BHV-1 recovered by virus isolation from nasal swabs. Data for the evaluation period (days 4-14) were analyzed using multivariable statistics. Day-5 and -3 VAC groups had fewer (P less than 0.05) days of clinical illness compared to CON. Rectal temperatures were lower (P less than 0.05) during days 4-8 for each of the VAC groups as compared to combined CON groups. CON calves shed BHV-1 for more days than calves vaccinated on day-5 (P less than 0.01), day-3 (P=0.06), or day-2 (P=0.06). Mean concentrations of nasal BHV-1 also differed (P less than 0.05) between combined CON groups and each of the VAC groups during at least one study day. Calves in the VAC groups (median=10 days) seroconverted to BHV-1 (P less than 0.01) sooner than CON calves (median=14 days). This study demonstrated that the use of a non-adjuvanted MLV vaccine in neonatal calves can reduce the effects of BETV-1 challenge soon after vaccination.
description: The Bovine Practitioner, Vol. 45, No. 1 (2011 Spring)
Additional file 2 of Clinical features and outcomes of COVID-19 and dengue co-infection: a systematic review
Creators: name: Tsheten, Tsheten
name: Clements, Archie C. A.
name: Gray, Darren J.
name: Adhikary, Ripon K.
name: Wangdi, Kinley
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: FOS: Biological sciences
subject: Computational Biology

description: Additional file 2. Comparison of the clinical and laboratory characteristic of co-infection, only COVID-19 and only dengue reported in the present and past studies respectively.
Comparative Evaluation of FPGA and ASIC Implementations of Bufferless and Buffered Routing Algorithms for On-Chip Networks
Creators: name: Cai, Yu
name: Mai, Ken
name: Mutlu, Onur
Publisher: name: Carnegie Mellon University
Year: 2015
Subjects: subject: Computer Engineering
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Most existing packet-based on-chip networks assume routers have buffers to buffer packets at times of contention. Recently, deflection-based bufferless routing algorithms have been proposed as an alternative design to reduce the area, power, and complexity disadvantages associated with buffering in routers. While bufferless routing shows significant promise at an algorithmic level, these algorithms have not been shown to be efficiently implementable in practice. Neither were they extensively compared to existing buffered routing algorithms in realistic designs. This paper presents our comparative evaluation of and experiences with realistic FPGA and ASIC designs of state-of-the-art (1) virtual-channel buffered, (2) deflection-based bufferless, and (3) deflection-based buffered routing algorithms using two different network topologies and network sizes. We show that bufferless routing algorithms are implementable without significant complexity, and compare their performance, area, frequency, and power consumption to their buffered counterparts. Our results indicate that bufferless routing can lead to significant area (38%), power consumption (30%), and router cycle time (8%) reductions over the best buffered router implementation on 65nm ASIC design, while operating at higher frequency.
The Green Bank Ammonia Survey: Observations of Hierarchical Dense Gas Structures in Cepheus-L1251
Creators: name: Keown, Jared
name: Di Francesco, James
name: Kirk, Helen
name: Friesen, Rachel K.
name: Pineda, Jaime E.
name: Rosolowsky, Erik
name: Ginsburg, Adam
name: Offner, Stella S. R.
name: Caselli, Paola
name: Alves, Felipe
name: Chacón-Tanarro, Ana
name: Punanova, Anna
name: Redaelli, Elena
name: Seo, Young Min
name: Matzner, Christopher D.
name: Chen, Michael Chun-Yuan
name: Goodman, Alyssa A.
name: Chen, How-Huan
name: Shirley, Yancy
name: Singh, Ayushi
name: Arce, Hector G.
name: Martin, Peter
name: Myers, Philip C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We use Green Bank Ammonia Survey observations of NH$_3$ (1,1) and (2,2) emission with 32'' FWHM resolution from a ~ 10 pc$^{2}$ portion of the Cepheus-L1251 molecular cloud to identify hierarchical dense gas structures. Our dendrogram analysis of the NH$_3$ data results in 22 top-level structures, which reside within 13 lower-level, parent structures. The structures are compact (0.01 pc $\lesssim R_{eff} \lesssim$ 0.1 pc) and are spatially correlated with the highest H$_2$ column density portions of the cloud. We also compare the ammonia data to a catalog of dense cores identified by higher-resolution (18.2'' FWHM) Herschel Space Observatory observations of dust continuum emission from Cepheus-L1251. Maps of kinetic gas temperature, velocity dispersion, and NH$_3$ column density, derived from detailed modeling of the NH$_3$ data, are used to investigate the stability and chemistry of the ammonia-identified and Herschel-identified structures. We show that the dust and dense gas in the structures have similar temperatures, with median $T_{dust}$ and $T_K$ measurements of 11.7 $\pm$ 1.1 K and 10.3 $\pm$ 2.0 K, respectively. Based on a virial analysis, we find that the ammonia-identified structures are gravitationally dominated, yet may be in or near a state of virial equilibrium. Meanwhile, the majority of the Herschel-identified dense cores appear to be not bound by their own gravity and instead confined by external pressure. CCS $(2_0-1_0)$ and HC$_5$N $(9-8)$ emission from the region reveal broader line widths and centroid velocity offsets when compared to the NH$_3$ (1,1) emission in some cases, likely due to these carbon-based molecules tracing the turbulent outer layers of the dense cores.
description: Accepted for publication in ApJ