cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Are concept map exam papers reliable as assessment tools in nursing education? A quantitative research pilot study
Creators: name: CHATZI, ANNA
name: KOUROUSIS, KYRIAKOS
Publisher: name: University of Limerick
Year: 2023
Subjects: subject: Health sciences
subject: FOS: Health sciences

description: This study’s aim is to investigate the necessity and advantages of the use of concept map as an assessment tool in nursing education. Concept maps have been used extensively aiming mainly at effective understanding, linking together concepts and evaluating new knowledge. A class of second-year nursing degree undergraduate students (N = 32) in Greece participated in this pilot study. Concept map and open-ended exam papers were used. Quantitative statistical analysis of the concept map and open-ended exam grades was conducted. Statistical tests were used to compare all pairs of both types of papers. For the concept map papers, two different grading methods were employed to evaluate their effectiveness. The obtained results indicated that the concept map exam type provided similar scores when compared to the open-ended exam, while the grading efficiency is higher. More-over, for the concept map exam paper, both grading methods can be applied interchangeably to provide similar scores for the students. The concept map can be a trusted assessment tool for identifying the nursing students’ gaps in knowledge and comprehension, in comparison to the open-ended exam type. Nursing educators are encouraged to note the tools strengths and use it according to courses' requirements. Registration number: Not applicable
Residence Times of Particles in Diffusive Protoplanetary Disk Environments II. Radial Motions and Applications to Dust Annealing
Creators: name: Ciesla, Fred J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The origin of crystalline grains in comets and the outer regions of protoplanetary disks remains a mystery. It has been suggested that such grains form via annealing of amorphous precursors in the hot, inner region of a protoplanetary disk, where the temperatures needed for such transformations were found, and were then transported outward by some dynamical means. Here we develop a means of tracking the paths that dust grains would have taken through a diffusive protoplanetary disk and examine the types and ranges of environments that particles would have seen over a 10$^{6}$ year time period in the dynamic disk. We then combine this model with three annealing laws to examine how the dynamic evolution of amorphous grains would have led to their physical restructuring and their delivery to various regions of the disk. It is found that "sibling particles"-- those particles that reside at the same location at a given period of time--take a wide range of unique and independent paths through the disk to arrive there. While high temperatures can persist in the disk for very long time periods, we find that those grains which are delivered to the cold outer regions of the disk are largely annealed in the first few $\times10^{5}$ yrs of disk history. This suggests that the crystallinity of grains in the outer disk would be determined early and remain unchanged for much of disk history, in agreement with recent astronomical observations.
description: 33 pages, 13 figures, To be published in ApJ
Determination of spin-dependent Seebeck coefficients of CoFeB/MgO/CoFeB magnetic tunnel junction nanopillars
Creators: name: Liebing, N.
name: Serrano-Guisan, S.
name: Rott, K.
name: Reiss, G.
name: Langer, J.
name: Ocker, B.
name: Schumacher, H. W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the spin-dependent Seebeck coefficient and the tunneling magneto thermopower of CoFeB/MgO/CoFeB magnetic tunnel junctions (MTJ) in the presence of thermal gradients across the MTJ. Thermal gradients are generated by an electric heater on top of the nanopillars. The thermo power voltage across the MTJ is found to scale linearly with the heating power and reveals similar field dependence as the tunnel magnetoresistance. The amplitude of the thermal gradient is derived from calibration measurements in combination with finite element simulations of the heat flux. Based on this, large spin-dependent Seebeck coefficients of the order of (240 \pm 110) \muV/K are derived. From additional measurements on MTJs after dielectric breakdown, a tunneling magneto thermopower up to 90% can be derived for 1.5 nm MgO based MTJ nanopillars.
The Reviewer 2's Comments for the First Peer-Review.
Creators: name: Siming Zheng
Publisher: name: figshare
Year: 2020
Subjects: subject: 10402 Biostatistics
subject: FOS: Mathematics

description: Dear PAA editor,
Hello. There are the previous comments made by Reviewer 2 during the period of first peer-review. Hopefully, we hope that you can refer to it continuously during the third stage of peer review.
Thank you for your reference.
Sincerely,
Szeming Cheng.
GW230529_181500: A Potential Primordial Binary Black Hole Merger in the Mass Gap
Creators: name: Huang, Qing-Guo
name: Yuan, Chen
name: Chen, Zu-Cheng
name: Liu, Lang
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: During the fourth observing run of the LIGO-Virgo-KAGRA detector network, the LIGO Livingston observatory detected a coalescing compact binary, GW230529_181500, with component masses of $2.5-4.5\, M_\odot$ and $1.2-2.0\, M_\odot$ at the $90\%$ credible level. The gravitational-wave data alone is insufficient to determine whether the components are neutron stars or black holes. In this paper, we propose that GW230529_181500 originated from the merger of two primordial black holes (PBHs). We estimate a merger rate of $5.0^{+47.0}_{-4.9} \mathrm{Gpc}^{-3}\,\mathrm{yr}^{-1}$ for compact binary coalescences with properties similar to GW230529_181500. Assuming the source is a PBH-PBH merger, GW230529-like events lead to approximately $1.7^{+36.2}_{-1.5} \times 10^{-3}$ of the dark matter in the form of PBHs. The required abundance of PBHs to explain this event is consistent with existing upper limits derived from microlensing, cosmic microwave background observations and the null detection of gravitational wave background by LIGO-Virgo-KAGRA.
description: 15 pages, 3 figures; Accepted by JCAP
Evolution of Surgery Risk in Crohn's Disease
Creators: name: Frolkis, Alexandra
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Medicine and Surgery
subject: Public Health
subject: Crohn's disease
subject: Epidemiology
subject: Surgery

description: While many individuals with Crohn’s disease require surgery for management, the risks of surgery are not well characterized in population-based studies. Advances in medical management may have influenced the risk of surgery over time. However, studies have not adequately evaluated the effect of smoking on temporal trends in surgery risk for Crohn’s disease. A mixed methodology approach was used to: 1) describe the morbidity and mortality associated with surgery in Crohn’s disease; 2) summarize the risk of first and second surgery in Crohn’s disease; 3) evaluate whether the risk of surgery has changed over time; and 4) assess whether smoking has influenced the risk of surgery in Crohn’s disease. In Alberta, postoperative morbidity (25%) and mortality (1.2%) was high for Crohn’s disease. A systematic review and meta-analysis found that the estimated pooled risk of surgery 10 years after the diagnosis of Crohn’s disease was 46.6% (95% Confidence Interval [CI] 37.7%-57.7%); however, the risk of first surgery in Crohn’s disease was significantly decreasing over time (meta-regression p- value<0.01). Another systematic review and meta-analysis identified that 10 years following the first surgery the estimated pooled risk of a second surgery was 35% (95% CI 31.8%-38.6%) and this risk was also decreasing over time (Cochran Q for subgroup comparison p-value<0.01). Finally, a nationally representative cohort showed that from 1996 to 2009 the risk of first surgery decreased significantly and the proportion of incident Crohn’s disease patients who have never smoked significantly increased annually by an estimated 3% (Risk Ratio [RR] 1.03; 95% CI 1.02-1.04). Furthermore, in older adults (>40 years at diagnosis) smoking was associated with twice the risk of surgery compared to those who did not smoke. The results of this dissertation demonstrate that surgery is associated with significant morbidity and mortality. Reassuringly, the risk of surgery is decreasing over time. In part, this decrease may be explained by fewer Crohn’s disease patients who are smokers at diagnosis. Thus, public health initiatives that reduce the prevalence of smoking in the general population may reduce the burden of Crohn’s disease.
Integration of Silica Sol-Gels into Bioprocesses and Biologically-Derived Pharmaceuticals
Creators: name: Fahr, Jochen
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Engineering--Biomedical
subject: Engineering--Chemical
subject: Cell Culture
subject: Bioprocess Engineering

description: In this thesis work, the use of sol-gel in biotechnology was investigated. This thesis has three independent projects with a common theme of bioprocess engineering. In the first chapter, the high cell density culture of cells in bioreactors was investigated. Specifically, human Foreskin Fibroblasts (hFFs) were cultivated in suspension culture using microcarriers. The goal was to passage hFFs on microcarriers without the use of trypsin. The result was that the yield of hFFs was significantly higher compared to static culture techniques. When cell cultures reach high densities, often the growth is limited by the accumulation of metabolic waste products. In the second chapter, enzyme-laced silica sol-gels were prepared and used for the in situ conversion of lactic acid to pyruvic acid, converting one of the two major metabolic waste products of cell culture into a cell-protecting growth substrate. Silica sol-gels are inorganic matrices that originate from an organic precursor. Sol-gels have been used to protect surfaces, like glass or sheet metal, from corrosion or scratches. In biotechnological applications, sol-gels can be used to encapsulate enzymes and other biologically active ingredients. Encapsulation of enzymes enables an easy recovery and reusability, reducing the cost per unit. One of the benefits of this technology is the simple integration into existing bioprocesses without contamination of protein samples due to the rigid nature of the silica sol-gel particles. This technology also has major implications in the areas of bioprocess engineering, such as tissue engineering and vaccine production by enabling an increase in the medium life span and therefore increasing cultivation times before medium changes, reducing production costs. The final chapter was another application of the sol-gel technology and was completed in an industrial setting. The goal was to develop a coating for safflower-derived oil bodies with silica sol-gel. This coating provided a customizable protection of oil body-associated proteins against digestion along the human gastro-intestinal tract. Overall these developments have examined key issues in current bioprocessing and come up with novel and practical solutions.
Water wave interactions with surface-piercing vertical barriers in a rectangular tank: Connections with Bloch waves and quasimodes
Creators: name: Wilks, Ben
name: Montiel, Fabien
name: Bennetts, Luke G.
name: Wakes, Sarah
Publisher: name: arXiv
Year: 2024
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Eigenmodes are studied for a fluid-filled rectangular tank containing one or more vertical barriers, and on which either Dirichlet or Neumann boundary conditions are prescribed on the lateral walls. In the case where the tank contains a single barrier, the geometry of the tank is equivalent to the unit cell of the cognate periodic array, and its eigenmodes are equivalent to standing Bloch waves. As the submergence depth of the barrier increases, it is shown that the passbands (i.e.\ frequency intervals in which the periodic array supports Bloch waves) become thinner, and that this effect becomes stronger at higher frequencies. The eigenmodes of a uniform array of vertical barriers in a rectangular tank are also considered. They are found to be a superposition of left- and right-propagating Bloch waves, which couple together at the lateral walls of the tank. A homotopy procedure is used to relate the eigenmodes to the quasimodes of the same uniform array in a fluid of infinite horizontal extent, and the quasimodes are shown to govern the response of the array to incident waves. Qualitative features of the mode shapes are typically preserved by the homotopy, which suggests that the resonant responses of the array in an infinite fluid can be understood in terms of modes of the array in a finite tank.
description: 21 pages, 11 figures
Children's Interpretation of Filled Pauses in Referential Communication: Exploring the Functions of Discourse Status and Object Familiarity
Creators: name: Owens, Sarah
Publisher: name: Graduate Studies
Year: 2015
Subjects: Psychology--Cognitive
Psychology--Developmental

description: In this dissertation I investigated children’s sensitivity to the presence of filled pauses (uh or um) in referential communication. Specifically, I examined whether children generate expectations about a speaker’s referential intent, based on the information that is conveyed by the presence of a filled pause. A visual world eye-tracking paradigm was used in all experiments. In Chapter 2, I examined whether 2- and 3-year-olds appreciate that filled pauses often precede reference to objects that are new to a discourse. Children viewed pairs of familiar objects on a screen and heard a speaker refer to one of the objects twice in succession. Next, children heard a critical utterance and were asked to look and point at either the discourse-given (i.e., previously mentioned) or discourse-new (i.e., previously unmentioned) object using a fluent (“Look at the ball!”) or disfluent (“Look at thee uh ball!”) expression. The results indicated that 3-year-old children, but not 2-year-old children, initially expected the speaker to continue to refer to given information in the critical utterance. Upon hearing a filled pause, however, both 2- and 3-year-old children’s looking patterns reflected increased looks to discourse-new objects, though the timing of the effect differed between the age groups. In Chapter 3, I examined whether children recognize that filled pauses may signal reference to unfamiliar objects. Across three experiments, 3- and 5-year-old children were presented with pairs of novel and familiar objects and heard a speaker refer to one of the objects using a fluent or disfluent expression. The salience of the speaker’s unfamiliarity with the novel referents, and the way in which the speaker referred to the novel referents (i.e., with a novel noun or description), varied across experiments. Both 3- and 5-year-old children successfully identified familiar and novel targets, but looking patterns failed to show effects of filled pauses on processing. Together, these findings demonstrate that young children have an emerging understanding of the role of filled pauses in speech. Under certain circumstances, children as young as 2-years-old will use filled pauses to guide their processing of referential communication. Chapter 4 summarizes and explores the aforementioned findings in greater detail.
Orbital angular momenta of quarks and gluons in the nucleon -- model-dependent versus model-independent extractions
Creators: name: Wakamatsu, Masashi
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We demonstrate that there exist two kinds of gauge-invariant decompositions of the nucleon spin, which are physically inequivalent. The quark and gluon orbital angular momenta (OAMs) appearing in one decomposition are basically the canonical OAMs, while the quark and gluon OAMs appearing in another decomposition are called the dynamical OAMs. It is shown that the dynamical OAMs of quarks and gluons in the nucleon can be related to definite high-energy deep-inelastic-scattering observables. On the other hand, we conjecture that the canonical OAMs of quarks and gluon in the nucleon are model-dependent quantities, which is meaningful only within a specific theoretical model of the nucleon.
description: 8 pages., no figure, to appear in PACSpin2011 (Cairns, 20-24 June, 2011) conf. proc. (AIP)
Constraints on Inflation with Null Energy Condition Violation from Advanced LIGO and Advanced Virgo's First Three Observing Runs
Creators: name: Chen, Zu-Cheng
name: Liu, Lang
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The null energy condition (NEC) is a cornerstone of general relativity, and its violation could leave observable imprints in the cosmic gravitational wave spectrum. Theoretical models suggest that NEC violations during inflation can amplify the primordial tensor power spectrum, leading to distinct features in the stochastic gravitational wave background (SGWB). In this work, we search for these NEC-violating signatures in the SGWB using data from Advanced LIGO and Advanced Virgo's first three observing runs. Our analysis reveals no statistically significant evidence of such signals, allowing us to place stringent upper limits on the tensor power spectrum amplitude, $P_{T,2}$, during the second inflationary stage. Specifically, we find that $P_{T,2} \lesssim 0.15$ at a $95\%$ confidence level. Notably, this upper limit is consistent with constraints derived from pulsar timing array observations, reinforcing the hypothesis that NEC violations during inflation could explain the signal detected by pulsar timing arrays. Our findings contribute to a deeper understanding of the early Universe and highlight the potential of current and future gravitational wave experiments in probing the physics of inflation and NEC violations.
description: 11 pages, 1 figures, title changed as required by the Editor, accepted by JCAP;
On relativization of the Sommerfeld-Gamow-Sakharov factor
Creators: name: Arbuzov, Andrej B.
name: Kopylova, Tatiana V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Sommerfeld-Gamow-Sakharov factor is considered for the general case of arbitrary masses and energies. It is shown that the scalar triangular one-loop diagram gives the Coulomb singularity in radiative corrections at the threshold. The singular part of the correction is factorized at the complete Born cross section regardless of its partial wave decomposition. Different approaches to generalize the factor are discussed.
description: 9 pages, 4 figures; references and discussion are extended
The Effect of Stochastic Resonance Stimulation on Proprioception and Postural Control in Anterior Cruciate Ligament Reconstructed Patients
Creators: name: Zandiyeh, Payam
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Engineering--Mechanical
subject: Stochastic Resonance
subject: Anterior cruciate ligament reconstruction
subject: ACLR
subject: Postural balance
subject: Proprioception
subject: Entropic half-life
subject: Surrogate Analysis
subject: Entropy
subject: ACL Quality of life
subject: Knee
subject: post ACL reconstruction rehabilitation

description: The anterior cruciate ligament (ACL) is one of the most commonly injured ligaments in the knee that frequently results in reconstruction surgery. Some degree of chronic proprioception and postural balance deficiency has been reported following ACL reconstruction (ACLR) surgery, which may be associated with a higher risk of ACL re-injury in these patients. Stochastic resonance (SR) has been shown to improve proprioception in various clinical populations with comparable postural and proprioceptive deficiencies as the ACLR population. In this dissertation, the existence of such deficiencies has been investigated in female ACLR participants and healthy controls. The effect of SR on improving the postural balance and knee proprioception in ACLR and healthy populations has also been studied. The ACLR participants were tested at three months (n = 19) and six months post-surgery (n = 15), while healthy participants were tested once (n = 28). The SR vibration was applied locally to the knee region. Proprioception was evaluated using movement threshold and movement repeatability tests. The effects of the following factors on proprioception were studied: SR (ON vs. OFF), movement direction (flexion vs. extension), and limb condition (ACLR vs. contralateral; ACLR vs. healthy dominant control). Postural balance during single leg standing (duration of 30 sec) was assessed with new measures including entropic half-life (EnHL) and surrogate entropy (ΔE_surr). These measures were developed in conjunction with this dissertation. The effects of the following factors on postural balance were studied: SR (ON vs. OFF), limb side (ACLR vs. contralateral; ACLR vs. healthy dominant control), and vision (eyes open vs. eyes closed). SR vibration successfully improved proprioception in the ACLR and healthy controls. These study results suggest that SR could potentially aid in pre/post-surgery proprioception rehabilitation. This study showed that a postural balance deficiency was present when the ACLR limb was compared to healthy dominant control limbs. When the ACLR limb was compared to the contralateral, the deficiency was only present when the eyes were closed. These findings may suggest that the postural balance deficiency is subtle. Therefore, more stringent or demanding experimental protocols may be necessary to test postural balance in functional groups with deficiencies such as the ACLR group.b
A Computational Study of Tree Architecture
Creators: name: Palubicki, Wojtek
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Botany
subject: Plant Physiology
subject: Computer Science
subject: Self-Organization
subject: Computer modelling
subject: Tree architecture

description: Since their inception in the 1970s, architectural tree models (Hallé et al. 1978) have provided the dominant framework for describing tree forms. An architectural tree model is viewed as a “genetic blueprint” of tree development: a precise developmental pattern subject to disruptive modifications by the environment (Hallé et al. 1978, p. 74): Organization in plants reflects the precisely controlled genetic program, which determines their development. [...] This program is disrupted by exogenous, environmental factors.” On the basis of extensive field data, Halle, Oldeman and Tomlinson distinguished 23 such programs and postulated that they capture the diversity of trees observed in nature. An alternative perspective of tree form was proposed by Sachs and Novoplansky (1995). They viewed environmentally-mediated interactions – in particular, competition between buds and branches for light and space – not merely as a modifier, but as a key determinant of tree form. According to their perspective, genetic and molecular mechanisms do not define tree forms directly, but only set up the rules for tree self-organization through competition between branches (Sachs and Novoplansky 1995): “The form of a tree is generated by self-organization in which alternative branches compete with one another, following no strict plan or pre-pattern.” In spite of the apparent dichotomy between both views, Sachs and Novoplansky postulated that architectural models and self-organization have a complementary character and the diversity of tree forms in nature results from an interplay between them. Here in this thesis I examine the concepts of architectural models, self-organization, and their synthesis in light of computer models implementing these paradigms. In particular, among the results is presented a theoretical morphospace constructed by only a small number of model parameters that captures major characteristics of most of the architectural models. Hallé, F., Oldeman, R. A., & Tomlinson, P. B. (1978). Tropical trees and forests. Berlin: Springer-Verlag. Sachs, T., & Novoplansky, A. (1995). Tree from: Architectural models do not suffice. Israel Journal of Plant Sciences 43, 203–212.
Rauheitsmesstechnik: Umrechnung von Profilen aus Bezugsflächentastermessungen in Kufentasterprofile : Expertenbericht DKD-E 4-2
Creators: name: Hüser, Dorothee
name: Volk, Raimund
name: Schwarzer, Florian
name: Feifel, Stefan
Publisher: name: Physikalisch-Technische Bundesanstalt (PTB)
Year: 2025
Subjects: DKD-Expertenbericht
Tasterprofil
Rauheit
Taster
Kufentaster
Tastspitze

description: Dieser Expertenbericht stellt ein Verfahren für die Kalibrierung von Raunormalen für die Darstellung der Blechoberflächenbeschaffenheit vor, durch das auf den Einsatz von Zweikufentastern im Kalibrierbetrieb verzichtet werden kann.
Bei Anwendung des Verfahrens werden mit Bezugsflächentastern aufgenommene Profile in Kufentasterprofile umgerechnet. Dies ist für die Rautiefenkenngrößen, welche die extremalen Profilhöhen quantifizieren, Rz, Rzmax und Rzx relevant. Bei Feinblechen mit typischen Rz-Kennwerten im Bereich von 5 µm bis 5,5 µm unterscheiden sich die Ergebnisse zwischen Kufen- und Bezugsflächentastermessungen um etwa 0,6 µm. Die Unsicherheit des Umrechnungsverfahrens liegt ungefähr bei 0,1 µm. Für die Bestimmung der Kenngrößen arithmetischer Mittenrauwert Ra und Spitzenzahl RPc bzw. Rpc gibt es keine signifikante Änderung der Werte, so dass für diese keine Umrechnung erforderlich ist.
Durch die Verwendung der Umrechnungsmethode werden Umbauzeiten eingespart und es entfallen Unsicherheitsanteile, die die Form- und Lagetoleranzen der Zweikufentaster abbilden. Eine Reduktion der kleinsten akkreditierten Messunsicherheiten ist damit empfohlen.
Anagyrus brevistigma De Santis 1964
Creators: name: Triapitsyn, Serguei V.
name: Logarzo, Guillermo A.
name: Aguirre, María B.
name: Aquino, Daniel A.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Encyrtidae
Anagyrus
Anagyrus brevistigma

description: Anagyrus brevistigma De Santis, 1964
(Figs 13, 14)
 Type material examined. Holotype female [MLPA] on slide (Fig. 13) labeled: 1. “Balcarce (Prov. de Bs As.) Col: Exp. Museo 10/II/1961 N o2677/1 [in pencil, MLPA type number added later]”; 2. “ Anagyrus brevis-tigma Det. De Santis ♀ [in pencil] HOLOTIPO ZA-169 MUSEO DE LA PLATA ”. The holotype is in fair condition, with the head plus one antenna detached from the body and the other antenna (Fig. 14) detached from the head.
 Distribution. Argentina: Buenos Aires (De Santis 1964, 1967), and Brazil (De Santis 1980; Noyes & Hayat 1994).
 Host. Antonina graminis (Maskell) (Hemiptera: Pseudococcidae) (De Santis 1980; Noyes & Hayat 1994).
 Taxonomic notes. This species was described from a single female (De Santis 1964). The scape of the antenna (Fig. 14) is strongly broadened, dark brown except white subapically; the pedicel is dark basally and white apically; F1 is dark, and F2–F6 and the clava are pale brownish.
description: Published as part of Triapitsyn, Serguei V., Logarzo, Guillermo A., Aguirre, María B. & Aquino, Daniel A., 2014, Two new species of Anagyrus (Hymenoptera: Encyrtidae) from Argentina, parasitoids of Hypogeococcus spp. (Hemiptera: Pseudococcidae), with taxonomic notes on some congeneric taxa, pp. 201-230 in Zootaxa 3861 (3) on pages 209-210, DOI: 10.11646/zootaxa.3861.3.1, http://zenodo.org/record/250604
Computational Modelling of the Wind Flow over the University of Calgary Campus
Creators: name: Mohamed, Mohamed
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Engineering--Mechanical
subject: turbulence modelling
subject: CFD
subject: stagnation
subject: urban wind resource
subject: topology

description: This thesis investigates the issues pertaining to computational wind resource in the urban environment. The effect of trees on wind distortions above the roof of a 15-m high building was modelled via sink and source terms in the momentum, k and ɛ equations. The results from the simulations showed mean wind speed above the roof was not a monotonic function of ratio of tree-to-building height. Further, the trees reduced k over the roof via reduced production. Stagnating turbulent flows occur in an urban setting and the over-prediction of k with the standard k-ɛ turbulence model is ameliorated with a formulation of the eddy viscosity that eliminates the dependence of the production term on the components of the mean strain rate. The new turbulence model, MW, improved predictions for k over the roof of a simulated building. Its predictions for mean wind speed and k improved further with blending functions. The MW was tested on flows over a rough 2D ridge and a 3D hill and compared with the SST and k-ɛ . The MW showed good predictions for k relative to experiments at the crest of the 3D hill and also portrayed a feature that does not allow the flow to relax too quickly downstream of the 3D hill unlike the SST and k-ɛ. The behaviour of simple RANS models along a stagnation streamline of a normal at plate in a wind tunnel were compared with experiments. All models over-predicted k and the important terms in the k budget while large changes to k do not affect the mean velocities. The most accurate of the models was the ω-based Reynolds stress model. A simulation of the wind flow over the University of Calgary campus was undertaken to assess the likely regions for siting wind turbines and photovoltaic modules. The effect of the terrain and the many trees on the campus is shown to be significant for the wind resource over the roof of a six-storey building. The choice of turbulence models is not critical if the purpose of the simulations is to identify regions for further exploration via wind speed measurements.
Sparsity-based single-shot sub-wavelength coherent diffractive imaging
Creators: name: Szameit, A.
name: Shechtman, Y.
name: Osherovich, E.
name: Bullkich, E.
name: Sidorenko, P.
name: Dana, H.
name: Steiner, S.
name: Kley, E. B.
name: Gazit, S.
name: Cohen-Hyams, T.
name: Shoham, S.
name: Zibulevsky, M.
name: Yavneh, I.
name: Eldar, Y. C.
name: Cohen, O.
name: Segev, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present the experimental reconstruction of sub-wavelength features from the far-field intensity of sparse optical objects: sparsity-based sub-wavelength imaging combined with phase-retrieval. As examples, we demonstrate the recovery of random and ordered arrangements of 100 nm features with the resolution of 30 nm, with an illuminating wavelength of 532 nm. Our algorithmic technique relies on minimizing the number of degrees of freedom; it works in real-time, requires no scanning, and can be implemented in all existing microscopes - optical and non-optical.
The $Δ_{mix}$ parameter in the overlap on domain-wall mixed action
Creators: name: Lujan, M.
name: Alexandru, A.
name: Draper, T.
name: Freeman, W.
name: Gong, M.
name: Lee, F. X.
name: Li, A.
name: Liu, K. F.
name: Mathur, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: A direct calculation of the mixed-action parameter $Δ_{mix}$ with valence overlap fermions on a domain-wall fermion sea is presented. The calculation is performed on four ensembles of the 2+1-flavor domain-wall gauge configurations: $24^3 \times 64$ ($a m_l= 0.005$, $a=0.114\fm$) and $32^3 \times 64$ ($a m_l = 0.004, 0.006, 0.008$, $a=0.085\fm$). For pion masses close to $300\MeV$ we find \hbox{$Δ_{mix}=0.030(6)\GeV^4$} at $a=0.114\fm$ and $Δ_{mix}=0.033(12)\GeV^4$ at $a=0.085\fm$. The results are quite independent of the lattice spacing and they are significantly smaller than the results for valence domain-wall fermions on Asqtad sea or those of valence overlap fermions on clover sea. Combining the results extracted from these two ensembles, we get $Δ_{mix}=0.030(6)(5)\GeV^4$, where the first error is statistical and the second is the systematic error associated with the fitting method.
description: 6 pages, 6 figures
The separating variety for the basic representations of the additive group
Creators: name: Dufresne, Emilie
name: Kohls, Martin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 13A50, 14L30

description: For a group $G$ acting on an affine variety $X$, the separating variety is the closed subvariety of $X\times X$ encoding which points of $X$ are separated by invariants. We concentrate on the indecomposable rational linear representations $V_n$ of dimension $n+1$ of the additive group of a field of characteristic zero, and decompose the separating variety into the union of irreducible components. We show that if $n$ is odd, divisible by four, or equal to two, the closure of the graph of the action, which has dimension $n+2$, is the only component of the separating variety. In the remaining cases, there is a second irreducible component of dimension $n+1$. We conclude that in these cases, there are no polynomial separating algebras.
description: 14 pages
On the control of the load increments for a proper description of multiple delamination in a domain decomposition framework
Creators: name: Allix, Olivier
name: Kerfriden, Pierre
name: Gosselet, Pierre
Publisher: name: arXiv
Year: 2011
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In quasi-static nonlinear time-dependent analysis, the choice of the time discretization is a complex issue. The most basic strategy consists in determining a value of the load increment that ensures the convergence of the solution with respect to time on the base of preliminary simulations. In more advanced applications, the load increments can be controlled for instance by prescribing the number of iterations of the nonlinear resolution procedure, or by using an arc-length algorithm. These techniques usually introduce a parameter whose correct value is not easy to obtain. In this paper, an alternative procedure is proposed. It is based on the continuous control of the residual of the reference problem over time, whose measure is easy to interpret. This idea is applied in the framework of a multiscale domain decomposition strategy in order to perform 3D delamination analysis.
title: История жизни Будимира Тукумцева, рассказанная им самим. Эвакуация
Creators: name: Тукумцев, Б. Г.
Publisher: name: Реноме
Year: 2023

description: Этот выпуск периодического издания «Петербургская социология сегодня» открывает раздел автобиографической книги «История жизни Будимира Тукумцева, рассказанная им самим», публикуемый с любезного разрешения Ирины Будимировны Олимпиевой, дочери Б. Г. Тукумцева. Совсем недавно, 25 апреля с. г., в рамках работы всероссийского научного семинара в Социологическом институте РАН — филиале ФНИСЦ РАН состоялась презентация сборника научных трудов Будимира Гвидоновича, изданного в Самаре, где прошел, может быть, самый плодотворный период жизни Б. Г. Тукумцева. Большая жизнь Будимира Гвидоновича (1927-2021) вместила в себя и предвоенное время, и Великую Отечественную войну, и послевоенную разруху, и налаживание мирной жизни. Все эти этапы отражены в книге человеком, который остро ощущал характерные приметы происходящего и сумел живо донести до нас пережитое, настолько живо, что остается лишь удивляться цепкой памяти автора, его рефлексии на происходящие события. Родные Будимира Гвидоновича опубликовали его жизнеописание: книга была издана в 2023 году тиражом всего лишь 50 экземпляров. Прочитав описание жизни близкого всем нам и глубокоуважаемого Будимира Гвидоновича (он работал в Социологическом институте РАН с 2005 по 2017 год), мы, члены редколлегии, единодушно решили, что эта работа имеет несомненную научную ценность и с ней должно ознакомиться как можно больше читателей. Возникла идея публикации тех разделов книги, в которых описаны переломные события: эвакуация из почти блокированного Ленинграда, взросление и «трудовой фронт», получение образования, наконец, активное участие в возрождении отечественной социологии. Надеемся, что публикация разделов книги Б. Г. Тукумцева вызовет интерес читателей: пожилые смогут найти в них отголоски собственных судеб, а молодые узнают подробности повседневной жизни на фоне великих событий и перемен.
Detecting a Gravitational-Wave Background from Inflation with Null Energy Condition Violation: Prospects for Taiji
Creators: name: Chen, Zu-Cheng
name: Liu, Lang
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The null energy condition (NEC) is a fundamental principle in general relativity, and its violation could leave discernible signatures in gravitational waves (GWs). A violation of the NEC during the primordial era would imprint a blue-tilted spectrum on the stochastic gravitational wave background (SGWB) at nanohertz frequencies, potentially accounting for the recently detected signal by pulsar timing arrays. Remarkably, models of NEC violation during inflation also predict a nearly scale-invariant GW spectrum in the millihertz frequency range, which could be detectable by upcoming space-based GW detectors such as Taiji. The observation of this distinctive spectrum would provide compelling evidence for new physics beyond the standard cosmological paradigm. In this study, we explore Taiji's ability to detect an SGWB arising from NEC violation during inflation, considering various foregrounds and noise sources, including an extragalactic foreground from binary black hole mergers throughout the universe, a galactic foreground from white dwarf binaries, and the intrinsic noise of the Taiji detector. Employing comprehensive Bayesian parameter estimation techniques to analyze simulated Taiji data, we demonstrate a remarkable precision improvement of three orders of magnitude compared to the NANOGrav 15-year data set for measuring the tensor power spectrum amplitude, $P_{T,2}$, during the second inflationary stage. This substantial enhancement in measurement capabilities underscores Taiji's potential as a powerful probe for investigating the NEC violation in the early Universe.
description: 17 pages, 5 figures; Accepted by EPJC
title: Παρεμβάσεις για την προαγωγή της σεξουαλικής υγείας σε εφήβους και νεαρούς ενήλικες
title: Sexual Health Promotion Interventions in adolescents and young adults
titleType: AlternativeTitle
Creators: name: Βαρδακώστα, Ειρήνη
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: Σεξουαλική υγεία
Εφηβοι
Νέοι
Προαγωγή υγείας
Πρόληψη
Σεξουαλικώς Μεταδιδόμενα Νοσήματα
Adolescents
Sexual health
Health promotion
Young people
Health promotion interventions

description: Εισαγωγή: Οι έφηβοι/ες και οι νέοι/ες συχνά υιοθετούν σεξουαλικές συμπεριφορές υψηλού κινδύνου με δυσάρεστες επιπτώσεις για την υγεία τους, όπως τα σεξουαλικώς μεταδιδόμενα νοσήματα και οι ανεπιθύμητες κυήσεις, καθιστώντας απαραίτητη την εφαρμογή αποτελεσματικών προγραμμάτων προαγωγής σεξουαλικής υγείας. Σκοπός: Σκοπός της παρούσας μελέτης είναι η βιβλιογραφική ανασκόπηση για την αναζήτηση και μελέτη του περιεχομένου και της αποτελεσματικότητας παρεμβάσεων που έχουν εφαρμοστεί για την προαγωγή της σεξουαλικής υγείας σε έφηβες-ους και νέες-ους. Μεθοδολογία: Πραγματοποιήθηκε συστηματική ανασκόπηση στις βάσεις δεδομένων Scopus και PubMed με βάση τη μεθοδολογία PRISMA με τη χρήση των παρακάτω λέξεων-κλειδιών: «interventions, sexual health, health promotion, adolescents, young adults». Αναζητήθηκαν άρθρα που αναφέρονταν σε ολοκληρωμένες παρεμβάσεις για την προαγωγή της σεξουαλικής υγείας, οι οποίες: α) εφαρμόστηκαν σε εφήβους ηλικίας 10-18 ετών και νεαρούς ενήλικες ηλικίας 19- 24 ετών, β) περιείχαν μεθόδους αξιολόγησης του προγράμματος παρέμβασης, γ) πραγματοποιήθηκαν στην κοινότητα ή σε εκπαιδευτικές μονάδες, δ) είχαν υλοποιηθεί σε χώρες του Δυτικού Κόσμου και ε) είχαν δημοσιευτεί στην αγγλική γλώσσα. Αποτελέσματα: Μετά την εφαρμογή κριτηρίων ένταξης και αποκλεισμού και την τελική αξιολόγηση περιλήψεων και τίτλων, επιλέχθηκαν και αναλύθηκαν 10 παρεμβάσεις. Από τις 10 παρεμβάσεις που διερευνήθηκαν οι 5 υλοποιήθηκαν σε σχολεία και οι υπόλοιπες σε μονάδες πρωτοβάθμιας φροντίδας. Στην πλειοψηφία τους αξιοποίησαν την εξοικείωση των εφήβων/νέων με τη ψηφιακή τεχνολογία και έκαναν χρήση του κοινωνικού δικτύου F/B και των κινητών τηλεφώνων προκειμένου να επιτύχουν τη βέλτιστη δυνατή αποδοχή από τους έφηβους-ες/νέους-ες. Συμπεράσματα: Τα αποτελέσματα της παρούσας εργασίας ανέδειξαν αφενός την ανάγκη διεξαγωγής παρεμβάσεων με στόχο την ενημέρωση των εφήβων-ες/νέων-ες σε θέματα σεξουαλικής υγείας αφετέρου υπογράμμισαν την πολλά υποσχόμενη Παρεμβάσεις για την προαγωγή της σεξουαλικής υγείας σε εφήβους και νεαρούς ενήλικες χρήση της τεχνολογίας για την επίτευξη των στόχων τους σε αυτή την ηλικιακή ομάδα. Κρίνεται απαραίτητη περαιτέρω διερεύνηση εφαρμογής των παρεμβάσεων στο εκπαιδευτικό περιβάλλον με τη συμβολή των εκπαιδευτικών, και την εμπλοκή των γονέων. Ενδιαφέρον επίσης θα παρουσίαζε και η έρευνα για την επίδραση τέτοιων παρεμβάσεων σε εφήβους-ες/νέους-ες ιδιαίτερων δημογραφικών και κοινωνικο- οικονομικών συνθηκών. Λέξεις-κλειδιά: παρεμβάσεις, προαγωγή, σεξουαλική υγεία, έφηβοι/ες, νέοι/ες
Program for the Spring 2023 MARAC Meeting: Keeping Archives Relevant in the Digital Age
Creators: name: MARAC: Mid-Atlantic Regional Archives Conference
Publisher: name: Digital Repository at the University of Maryland
Year: 2023
Subjects: MARAC
Mid-Atlantic Regional Archives Conference

description: The program for the Spring 2023 MARAC meeting, "Keeping Archives Relevant in the Digital Age" held virtually April 26-28, 2023.
Verifying Sierpiński and Riesel Numbers in ACL2
Creators: name: Cowles, John R.
name: Gamboa, Ruben
Publisher: name: arXiv
Year: 2011
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: A Sierpinski number is an odd positive integer, k, such that no positive integer of the form k * 2^n + 1 is prime. Similar to a Sierpinski number, a Riesel number is an odd positive integer, k, such that no positive integer of the form k * 2^n + 1 is prime. A cover for such a k is a finite list of positive integers such that each integer j of the appropriate form has a factor, d, in the cover, with 1 < d < j. Given a k and its cover, ACL2 is used to systematically verify that each integer of the given form has a non-trivial factor in the cover.
description: In Proceedings ACL2 2011, arXiv:1110.4473
Mechanisms underlying the epileptic phenotype associated with the alpha-1 A322D mutation in the GABA-A receptor
Creators: name: Bradley, Clarrisa Ann
Publisher: name: University of British Columbia
Year: 2010

description: Epilepsy is a common neurological disorder with a strong hereditary component. A mutation in the α1 subunit (A322D) of the GABA-A receptor is responsible for juvenile myoclonic epilepsy in a large Canadian family. Previous work has identified that this mutation affects the function of GABA-A receptors, expressed in HEK293 cells. Here I have examined the underlying mechanisms of this dysfunction and shown that the mutation reduces the cell surface expression of the GABA-A receptor, promotes association with the endoplasmic reticulum chaperone calnexin, enhances degradation and accelerates the degradation rate of the subunits approximately 2.5 fold. I have also found that the mutation causes the receptor to be degraded by a lysosomal-dependent process. Furthermore, I find that the mutation results in receptors that are inserted into the plasma membrane but are more rapidly endocytosed by a dynamin and caveolin-dependent mechanism. These results suggest that the mutant subunit can form trafficking-competent receptors that have a shorter lifetime on the plasma membrane. Collectively, my results strongly implicate defects in both the biogenesis and trafficking of the GABA-A receptors, as part of the mechanistic basis for the epileptic phenotype observed.
Role of phytochemicals and secondary metabolites from Mentha spicata in acetylcholine esterase inhibition for effective pest control of Tetranychus urticae Koch
Creators: name: Mammadova, Turana
name: Guliyeva, Lamia
name: Moulahoum, Hichem
name: Tok, Kerem
name: Küçükçobanoğlu, Yiğit
name: Aktas, Lale Yildiz
name: Zihnioglu, Figen
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Plant Biology

description: The two-spotted spider mite (Tetranychus urticae Koch) poses a significant threat to global food production. However, the environmental risks associated with synthetic pesticides have necessitated the exploration of eco-friendly alternatives. Plant-based biopesticides utilizing secondary metabolites have emerged as promising strategies for pest management. This study aimed to extract and characterize Mentha spicata L. through biochemical analyses, GC-MS, and LC-QTOF-MS. The extract’s acaricidal, oviposition deterrence, and repellent properties were evaluated against Tetranychus urticae, revealing a pronounced time- and concentration-dependent effect over 96 hours, with an LC50 of 3 µg/mL. Furthermore, the impact of the extract on plant growth was assessed using tomato plants, demonstrating an enhancement in growth rate based on photosynthesis, weight, and oxidative stress markers analyses. Polyphenolics and terpenoids in M. spicata were identified as contributors to its biological activities, including antioxidant and free-radical scavenging properties. Molecular docking experiments targeting acetylcholine esterase (AChE) were conducted on the identified phytocompounds, indicating a high affinity for δ-3-Carene and Isoferuloyl C1 glucuronide. The pesticidal effects of these compounds were attributed to their competitive and synergistic inhibition of AChE. These findings highlight the potential of plant extracts, specifically M. spicata, as effective biopesticides in future pest control strategies. The utilization of secondary metabolites from plant sources offers a sustainable and environmentally friendly approach to combatting T. urticae infestations.
Технологічне забезпечення якості складання нероз'ємних з'єднань із використанням зварювальних пристосувань в умовах серійного виробництва
Creators: name: Фролов Євгеній
name: Коробко Богдан
name: Попов Станіслав
name: Бондар Олег
Publisher: name: Zenodo
Year: 2020
Subjects: серійне виробництво
пристосування
оснащення
машинобудування
зварювання виробів

description: У колективній монографії наведено результати розробки та вдосконалення універсальних збірно-розбірних пристосувань, що переналагоджуються, для виробництва зварних конструкцій (УЗРП) мало- та крупногабаритних виробів машинобудування. Рекомендується для наукових співробітників, інженерно-технічних працівників, які займаються створенням та експлуатацією виробів у галузі машинобудування, а також здобувачів закладів вищої освіти механічних спеціальностей галузі знань «Механічна інженерія».