cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
How to find metal-rich asteroids
Creators: name: Harris, Alan W.
name: Drube, Line
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The metal content of asteroids is of great interest, not only for theories of their origins and the evolution of the solar system but, in the case of near-Earth objects (NEOs), also for impact mitigation planning and endeavors in the field of planetary resources. However, since the reflection spectra of metallic asteroids are largely featureless, it is difficult to identify them and relatively few are known. We show how data from the Wide-field Infrared Survey Explorer (WISE)/NEOWISE thermal-infrared survey and similar surveys, fitted with a simple thermal model, can reveal objects likely to be metal rich. We provide a list of candidate metal-rich NEOs. Our results imply that future infrared surveys with the appropriate instrumentation could discover many more metal-rich asteroids, providing valuable data for assessment of the impact hazard and the potential of NEOs as reservoirs of vital materials for future interplanetary space activities and, eventually perhaps, for use on Earth.
description: 11 pages, 2 figures, 1 table. The research leading to these results has received funding from the European Union's Seventh Framework Programme (FP7/2007-2013) under grant agreement no. 282703 (NEOShield Project)
Your Questions Answered on open access
Creators: name: Barbour, Virginia
name: Kingsley, Danny
name: Bradley, James
name: Tomaselli, Keyan
name: Montgomery, Lucy
name: Cochrane, Tom
Publisher: name: Zenodo
Year: 2015
Subjects: Open Access; Scholarly Communication; Publishing; Libraries; Research Communication;

description: Article originally published in the Australian edition of The Conversation on 23 October 2019. "Open access means making peer reviewed works freely available in digital form, so that anyone with internet access can use them, without financial, legal or technical barriers. It allows users to download, copy, print and distribute works, without the need to ask for permission or to pay. To the mark the eighth annual Open Access Week, we asked what readers wanted to know about the initiative."
description: Originally published at: https://theconversation.com/your-questions-answered-on-open-access-49284
A Detailed Numerical Analysis of Asymmetrical Density Distribution in Saturn's F ring During an Encounter with Prometheus
Creators: name: Sutton, Phil J
name: Kusmartsev, Feo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Saturn's rings, reminiscent of an early Solar System present a unique opportunity to investigate experimentally some mechanisms thought to be responsible for planet and planetesimal formation in protoplanetary discs. Here we extended the comparison of our numerical models of Prometheus encountering the F ring employing non-interacting and interacting particles. Higher resolution analysis revealed that the density increases known to exist at channel edges is more complex and localised than previously thought. Asymmetry between density increases on channel edges revealed that the channel edge facing way from Prometheus to be the most stable but with lowest maximum increases. However, on the channel edge facing Prometheus the interacting model showed large chaotic fluctuations in the maximum density of some clumps, much larger than those of the other channel. The likely cause of this asymmetry is a variance in localised turbulence introduced into the F ring by Prometheus. High resolution velocity dispersion maps showed that there was a spatial link between the highest densities and the highest velocity dispersions in the interacting model. Thus suggesting that the high velocity dispersion we see is the reason for the observed inhomogeneous distribution of fans (evidence of embedded moonlets) on some of the channel edges facing Prometheus.
Properties of lithium aluminate for application as OSL dosimeter
Creators: name: Twardak, A.
name: Bilski, P.
name: Marczewska, B.
name: Lee, J. I.
name: Kim, J. L.
name: Gieszczyk, W.
name: Piaskowska, A.
name: Sadel, M.
name: Wróbel, D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Several samples of lithium aluminate (LiAlO2) were prepared in an attempt to achieve material, which can be applicable in optically stimulated luminescence (OSL) dosimetry. Both undoped and carbon or copper doped lithium aluminate samples were investigated. The results of preliminary study of theirs reproducibility, sensitivity, dose response characteristic and fading are presented. Applications in mixed field (beta, alpha, neutrons) dosimetry are discussed.
MPEC 2023-E49 : OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
The generalized pseudospectral approach to the bound states of Hulthen and Yukawa potentials
Creators: name: Roy, Amlan K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The generalized pseudospectral method is employed to calculate the bound states of Hulthén and Yukawa potentials in quantum mechanics, with special emphases on higher excited states and stronger couplings. Accurate energy eigenvalues, expectation values and radial probability densities are obtained through a nonuniform and optimal spatial discretization of the radial Schrödinger equation. Results accurate up to thirteen to fourteen significant figures are reported for all the 55 eigenstates of both these potentials with $n\leq$10 for arbitrary values of the screening parameters covering a wide range of interaction. Furthermore, excited states as high as up to $n=17$ have been computed with good accuracy for both these potentials. Excellent agreement with the available literature data has been observed in all cases. The $n>6$ states of Yukawa potential has been considerably improved over all other existing results currently available, while the same for Hulthén potential are reported here for the first time. Excepting the $1s$ and $2s$ states of Yukawa potential, the present method surpasses in accuracy all other existing results in the stronger coupling region for all other states of both these systems. This offers a simple and efficient scheme for the accurate calculation of these and other screened Coulomb potentials.
A screen of small molecule and genetic modulators of life span in female Drosophila identifies etomoxir, RH5849 and unanticipated temperature effects
Creators: name: Landis, Gary N.
name: Ko, Sebastian
name: Peng, Oscar
name: Bognar, Brett
name: Khmelkov, Michael
name: Bell, Hans S.
name: Tower, John
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Mifepristone increases life span in female Drosophila melanogaster, and its molecular target(s) remain unclear. Here small molecule and genetic interventions were tested for ability to mimic mifepristone, or to decrease life span in a way that can be rescued by mifepristone. Etomoxir inhibits lipid metabolism, and significantly increased life span in virgin and mated females, but not males, at 50 µM concentration. Pioglitazone is reported to activate both mammalian PPARγ and its Drosophila homolog Eip75B. Pioglitazone produced minor and inconsistent benefits for female Drosophila life span, and only at the lowest concentrations tested. Ecdysone is a Drosophila steroid hormone reported to regulate responses to mating, and RH5849 is a potent mimic of ecdysone. RH5849 reduced virgin female life span, and this was partly rescued by mifepristone. Mifepristone did not compete with RH5849 for activation of an ecdysone receptor (EcR)-responsive transgenic reporter, indicating that the relevant target for mifepristone is not EcR. The conditional GAL4/GAL80ts system was used in attempt to test the effect of an Eip75B RNAi construct on female life span. However, the 29°C temperature used for induction reduced or eliminated mating-induced midgut hypertrophy, the negative life span effects of mating, and the positive life span effects of mifepristone. Even when applied after mating was complete, a shift to 29°C temperature reduced mating-induced midgut hypertrophy by half, and the life span effects of mating by 4.8-fold. Taken together, these results identify promising small molecules for further analysis, and inform the design of experiments involving the GAL4/GAL80ts system.
title: Exploring the Tat pathway for the production of disulphide-bonded recombinant proteins using CyDisCo in Escherichia coli
Creators: name: Arauzo-Aguilera, Claudia
Publisher: name: University of Kent
Year: 2023

description: The production of heterologous proteins of interest in microbial hosts such as Escherichia coli is a cost-effective and vital tool for the biopharmaceutical and enzyme industries. Research and development efforts over the past few decades have majorly focused on the Sec pathway for recombinant protein secretion in E. coli. However, the Twin-arginine translocation (Tat) pathway of E. coli has recently garnered interest for the periplasmic export of folded biopharmaceuticals as it possesses a unique proofreading ability to export correctly folded proteins. Tat-based translocation of biopharmaceuticals to the periplasm has the potential to greatly ease the downstream processing by reducing the amount of contaminating proteins and nucleic acids, thereby lowering the costs and time needed for their production. Furthermore, coupling Tatdependent protein secretion with the CyDisCo technology (cytoplasmic disulphide bond formation in E. coli), which enables disulphide bond formation in the cytoplasm of E. coli, provides a powerful platform for the production of industrially relevant and difficult-to-express proteins. Initially, a new experimental design for the export of multiple disulphide bond containing proteins to the periplasm by Tat in the presence of CyDisCo was empirically tested and developed as a starting point for future experiments. Later, a comparative study between Sec and Tat pathways for periplasmic export of a single chain variable fragment (scFv) in E. coli BL21 and W3110 was carried out. This led to an interesting comparison between the two strains based on soluble protein yields and quality when exported by the Sec pathway in fermenters. We observed a stark difference in the productivity profile of these two strains and a similar heterogeneity profile in the final product in both strains that could not detected by mass spectrometry-based analysis but confirmed by Differential Scanning Calorimetry (DSC) and 1D-1 H -NMR spectroscopy. Finally, in order to understand the limitations and maximize the applicability of the Tat pathway for proteins that fail to get exported efficiently with the TorA signal peptide, we focused on investigating alternative signal peptides. Here, we found that alternative signal peptides namely AmiC and MdoD allow highly efficient secretion of a disulphide bond-containing protein (YebF) to the periplasm of E. coli via Tat with CyDisCo. We report that these signal peptides are far more efficient than the well-known Tat specific TorA signal peptide, and hence they are potentially more suitable for large scale protein production than this more rigorous Tat-specific signal peptide. Overall, the research work presented in this thesis suggests that the Tat pathway and the CyDisCo system are attractive platforms for biotechnology and establishes highly efficient Tatdependent secretion of disulphide-bonded protein YebF to the E. coli periplasm.
ANALYSIS THE EFFECT OF MALFUNCTIONING OF LOCOMOTIVE TRIPLE VALVE ON BRAKE TIME
Creators: name: ADDISU SHIGUTE
Publisher: name: Zenodo
Year: 2016

description: Triple valve malfunction (triple valve defect) causes an effect on braking distance, braking time and braking force. [10]. From those defects leakage through triple valve piston, sliding valve and graduating valve are taken for analyzing the effects of malfunctioning of locomotive triple valve on braking time. The defects during leakages through triple valve piston head, triple valve piston rod, sliding valve and graduating valve causes air pressure to decreases lower than air pressure during normal operation of triple valve. Maximum and minimum pressure losses during leakages through triple valve piston head, triple valve piston rod, sliding valve and graduating valve are taken for Analyzing braking distance, braking time and braking time.
Self-localized states in species competition
Creators: name: Paulau, Pavel V.
name: Gomila, Damia
name: Lopez, Cristobal
name: Hernandez-Garcia, Emilio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We study the conditions under which species interaction, as described by continuous versions of the competitive Lotka-Volterra model (namely the nonlocal Kolmogorov-Fisher model, and its differential approximation), can support the existence of localized states, i.e. patches of species with enhanced population surrounded in niche space by species at smaller densities. These states would arise from species interaction, and not by any preferred niche location or better fitness. In contrast to previous works we include only quadratic nonlinearities, so that the localized patches appear on a background of homogeneously distributed species coexistence, instead than on top of the no-species empty state. For the differential model we find and describe in detail the stable localized states. For the full nonlocal model, however competitive interactions alone do not allow the conditions for the observation of self-localized states, and we show how the inclusion of additional facilitative interactions lead to the appearance of them.
description: 9 pages, 8 figures, to appear in Physical Review E
Measurement of Higgs boson decay into b-quarks in associated production with a top-quark pair in pp collisions at √s = 13 TeV with the ATLAS detector
Creators: name: Aad, G
name: Abbott, B
name: Abbott, DC
name: Abed Abud, A
name: Abeling, K
name: Abhayasinghe, DK
name: Abidi, SH
name: Aboulhorma, A
name: Abramowicz, H
name: Abreu, H
name: Abulaiti, Y
name: Abusleme Hoffman, AC
name: Acharya, BS
name: Achkar, B
name: Adam, L
name: Adam Bourdarios, C
name: Adamczyk, L
name: Adamek, L
name: Addepalli, SV
name: Adelman, J
name: Adiguzel, A
name: Adorni, S
name: Adye, T
name: Affolder, AA
name: Afik, Y
name: Agapopoulou, C
name: Agaras, MN
name: Agarwala, J
name: Aggarwal, A
name: Agheorghiesei, C
name: Aguilar-Saavedra, JA
name: Ahmad, A
name: Ahmadov, F
name: Ahmed, WS
name: Ai, X
name: Aielli, G
name: Aizenberg, I
name: Akatsuka, S
name: Akbiyik, M
name: Åkesson, TPA
name: Akimov, AV
name: Al Khoury, K
name: Alberghi, GL
name: Albert, J
name: Albicocco, P
name: Alconada Verzini, MJ
name: Alderweireldt, S
name: Aleksa, M
name: Aleksandrov, IN
name: Alexa, C
name: Alexopoulos, T
name: Alfonsi, A
name: Alfonsi, F
name: Alhroob, M
name: Ali, B
name: Ali, S
name: Aliev, M
name: Alimonti, G
name: Allaire, C
name: Allbrooke, BMM
name: Allport, PP
name: Aloisio, A
name: Alonso, F
name: Alpigiani, C
name: Alunno Camelia, E
name: Alvarez Estevez, M
name: Alviggi, MG
name: Amaral Coutinho, Y
name: Ambler, A
name: Ambroz, L
name: Amelung, C
name: Amidei, D
name: Amor Dos Santos, SP
name: Amoroso, S
name: Amos, KR
name: Amrouche, CS
name: Ananiev, V
name: Anastopoulos, C
name: Andari, N
name: Andeen, T
name: Anders, JK
name: Andrean, SY
name: Andreazza, A
name: Angelidakis, S
name: Angerami, A
name: Anisenkov, AV
name: Annovi, A
name: Antel, C
name: Anthony, MT
name: Antipov, E
name: Antonelli, M
name: Antrim, DJA
name: Anulli, F
name: Aoki, M
name: Aparisi Pozo, JA
name: Aparo, MA
name: Aperio Bella, L
name: Aranzabal, N
name: Araujo Ferraz, V
name: Arcangeletti, C
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: Hadron-Hadron Scattering

description: The associated production of a Higgs boson and a top-quark pair is measured in events characterised by the presence of one or two electrons or muons. The Higgs boson decay into a $b$-quark pair is used. The analysed data, corresponding to an integrated luminosity of 139 fb$^{-1}$, were collected in proton-proton collisions at the Large Hadron Collider between 2015 and 2018 at a centre-of-mass energy of $\sqrt{s}=13$ TeV. The measured signal strength, defined as the ratio of the measured signal yield to that predicted by the Standard Model, is $0.35^{+0.36}_{-0.34}$. This result is compatible with the Standard Model prediction and corresponds to an observed (expected) significance of 1.0 (2.7) standard deviations. The signal strength is also measured differentially in bins of the Higgs boson transverse momentum in the simplified template cross-section framework, including a bin for specially selected boosted Higgs bosons with transverse momentum above 300 GeV.
On Modeling and Measuring the Temperature of the z~5 IGM
Creators: name: Lidz, Adam
name: Malloy, Matthew
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The temperature of the low-density intergalactic medium (IGM) at high redshift is sensitive to the timing and nature of hydrogen and HeII reionization, and can be measured from Lyman-alpha forest absorption spectra. Since the memory of intergalactic gas to heating during reionization gradually fades, measurements as close as possible to reionization are desirable. In addition, measuring the IGM temperature at sufficiently high redshifts should help to isolate the effects of hydrogen reionization since HeII reionization starts later, at lower redshift. Motivated by this, we model the IGM temperature at z>5 using semi-numeric models of patchy reionization. We construct mock Lyman-alpha forest spectra from these models and consider their observable implications. We find that the small-scale structure in the Lyman-alpha forest is sensitive to the temperature of the IGM even at redshifts where the average absorption in the forest is as high as 90%. We forecast the accuracy at which the z~5 IGM temperature can be measured using existing samples of high resolution quasar spectra, and find that interesting constraints are possible. For example, an early reionization model in which reionization ends at z~10 should be distinguishable -- at high statistical significance -- from a lower redshift model where reionization completes at z~6. We discuss improvements to our modeling that may be required to robustly interpret future measurements.
description: 20 pages, 15 figures
Explorations of Resilience and Intersectional Discrimination: Visual art-based research with young women with refugee experience
Creators: name: Tiefenthaler, Sabine
name: Lynch, Gemma
Publisher: name: Eurac Research
Year: 2023

description: It’s a cold Monday afternoon in November, the fog is beginning to settle for the evening over a small town in Sardinia. Some young women are in an apartment cooking in the kitchen and listening to Nigerian music on YouTube. The boiler in the apartment is broken again which means filling pans on the stove for a shower. One of the young women, Thatcher, is sitting in the living room, looking at one of her pictures. She starts to talk about her experiences as a Black* woman in an Italian reception center. She is one of the participants in a research project about the resilience of women with refugee experience. Together with the photographer [Gemma Lynch](https://www.gemmalynch.com/) and the researcher [Sabine Tiefenthaler](https://www.researchgate.net/profile/Sabine-Tiefenthaler-2) seven young women from Nigeria are working on a PhotoVoice project called “[Immigrant Sisterhood](https://diespinnerei.wordpress.com/)”.
Catheter tip migration of totally implantable venous access device to ipsilateral internal jugular vein
Creators: name: Vinha, André
name: S. Moura, Joana
name: Pastor, Guillermo
name: Pinto Ferreira, Manuel
Publisher: name: Acta Radiológica Portuguesa
Year: 2019

description: Introduction: Totally implantable venous access devices (TIVAD) are crucial in the treatment of patients undergoing long-term chemotherapy. Various complications have been documented, including catheter tip migration.
Case Description: A TIVAD was introduced to perform chemotherapy in a 64-year-old male with a diagnosis of sigmoid colon cancer. 17 months after the introduction of TIVAD, our patient had complaints of pain in the right cervical region, extending from the clavicle to the mental area, during a chemotherapy session. Chest X-ray was required to confirm the position of TIVAD, demonstrating catheter tip migration to the ipsilateral internal jugular vein. Increased intrathoracic pressure due to cough and vomiting remains a possible cause to catheter tip migration.
Conclusion: A correct position of TIVAD, which equals the tip of the catheter being located 1 – 2 cm below the carina in chest X-ray, is crucial to prevent migration. Chest X-ray could be performed to detect migration. Measures to prevent increased intrathoracic pressure should be taken.
description: Acta Radiológica Portuguesa, Vol 30 No 3 (2018)
Investigating Oligodendrocyte Biology and Function: Insights from Neurological and Neuromuscular Diseases
Creators: name: Cummings, Sarah
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2020
Subjects: Oligodendrocyte
Neurodegenerative Disease

description: Oligodendrocytes (OLs) are the cells responsible for myelin production in the central nervous system (CNS). Myelin serves to increase the efficiency of signal propagation down the axon and is essential for proper communication between the CNS and the periphery. As a result, pathologies affecting the OL, including multiple sclerosis (MS) and multiple system atrophy (MSA), present with a wide range of symptoms including impaired muscle control, loss of coordination, as well as cognitive deficits. While the biology of the OL continues to garner research interest, much remains to be understood about cell function in a healthy context, and also how the biology of these cells goes awry in disease. Our objective was to explore the effects of varying disease models on OL biology and use those findings to further our knowledge on the biology of OL development and regeneration. Here we explore OL function and dysfunction in the context of spinal muscular atrophy (SMA), MSA and MS. We have thoroughly characterized the OL response to SMN-depletion and have determined that SMN is not required for the development of OLs in the neonatal brain. Additionally, we have sought to characterize the endogenous role of MSA-disease relevant protein alpha-synuclein in OL development and have determined that this protein is not required for OL differentiation or CNS myelination. Lastly, we have explored the biology of the OL in the context of the inhibitory milieu it faces during remyelination in MS. We have investigated different pathways that may be involved in mediating signalling of one such inhibitory cue (chondroitin sulphate proteoglycans, CSPGs), and have extended this model to interrogate OL cytoskeletal dynamics in the context of CSPGs. Together, this work uses disease frameworks to investigate basic OL biology, as well as provides insights into how the OL and its interactions with the extracellular milieu should be considered in disease pathogenesis and therapeutic exploration.
Trajectory composition of Poisson time changes and Markov counting systems
Creators: name: Bretó, Carles
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Other Statistics (stat.OT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Changing time of simple continuous-time Markov counting processes by independent unit-rate Poisson processes results in Markov counting processes for which we provide closed-form transition rates via composition of trajectories and with which we construct novel, simpler infinitesimally over-dispersed processes.
description: 9 pages, 1 figure
Spatial uncertainty of the target influences the processing of task-irrelevant features – a behavioral measure
Creators: name: Zhang, Xiaoli
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Cognitive Psychology
subject: Psychology
subject: FOS: Psychology
subject: Social and Behavioral Sciences
subject: Spatial uncertainty
subject: Attention

description: Recent behavioral evidence suggests that object representations more strongly constrain attention when spatial location of the target is uncertain, making a direct prediction that spatial uncertainty should modulate the strength of object representations. In this experiment we plan to test this modulation effect with behavioral measurement – using the attentional capture paradigm.
Submodularity of Energy Related Controllability Metrics
Creators: name: Cortesi, Fabrizio L.
name: Summers, Tyler H.
name: Lygeros, John
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The quantification of controllability and observability has recently received new interest in the context of large, complex networks of dynamical systems. A fundamental but computationally difficult problem is the placement or selection of actuators and sensors that optimize real-valued controllability and observability metrics of the network. We show that several classes of energy related metrics associated with the controllability Gramian in linear dynamical systems have a strong structural property, called submodularity. This property allows for an approximation guarantee by using a simple greedy heuristic for their maximization. The results are illustrated for randomly generated systems and for placement of power electronic actuators in a model of the European power grid.
description: 7 pages, 2 figures; submitted to the 2014 IEEE Conference on Decision and Control
Semiflexible polymer rings on topographically and chemically structured surfaces
Creators: name: Gutjahr, Petra
name: Lipowsky, Reinhard
name: Kierfeld, Jan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate morphologies of semiflexible polymer rings, such as circular DNA, which are adsorbed onto topographically or chemically structured substrate surfaces. We classify all equilibrium morphologies for two striped surface structures, (i) topographical surface grooves and (ii) chemically structured surface domains. For both types of stripes, we find four equilibrium shapes: a round toroidal and a confined elongated shape as well as two shapes containing bulges. We determine the complete bifurcation diagram of these morphologies as a function of their contour length and the ratio of adhesive strength to bending rigidity. For more complex geometries consisting of several stripes we find a cascade of transitions between elongated shapes. Finally, we compare our findings to ring condensation by attractive interactions.
Spin-orbit coupling and optical spin Hall effect in photonic graphene
Creators: name: Nalitov, A. V.
name: Malpuech, G.
name: Terças, H.
name: Solnyshkov, D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study the spin-orbit coupling induced by the splitting between TE and TM optical modes in a photonic honeycomb lattice. Using a tight-binding approach, we calculate analytically the band structure. Close to the Dirac point,we derive an effective Hamiltonian. We find that the local reduced symmetry ($\mathrm{D_{3h}}$) transforms the TE-TM effective magnetic field into an emergent field with a Dresselhaus symmetry. As a result, particles become massive, but no gap opens. The emergent field symmetry is revealed by the optical spin Hall effect.
description: 5 pages, 3 figures
Becoming ready to lose one’s own life : a grounded theory study of former Muslim Somali Christian converts in the United Kingdom and Sweden
Creators: name: Bódi, Mátyás
Publisher: name: The University of St Andrews
Year: 2022
Subjects: subject: Religious conversion
subject: Religious change
subject: Leaving Islam
subject: Apostasy
subject: Conversion to Christianity
subject: Conversion from Islam to Christianity
subject: Persecution
subject: Former Muslim
subject: Ex-Muslim
subject: Somali
subject: Somali diaspora
subject: Somali Christian
subject: Christianity in Somalia
subject: Somalia
subject: Conversion theory
subject: Grounded theory
subject: World Christianity
subject: BV2626.3B7
subject: Christian converts from Islam
subject: Conversion--Christianity
subject: Somalis--Great Britain--Case studies
subject: Somalis--Sweden--Case studies

description: Christians are a stigmatised and vulnerable segment of Somali society in both the Horn of Africa and in the diaspora. Their situation is extremely under-researched. This study provides an original theory of religious conversion and decision-making among Somalis from a Sunni Muslim background living in the United Kingdom and Sweden, the two largest Somali communities in Europe. The theory seeks to explain dominant behavioural patterns of conversion to evangelical Protestant Christianity and the disclosure of this faith to Muslim relatives and friends. The research is based on the analysis of interviews conducted with Somali Christians and missionaries working with Somalis, as well as literature related to the topic. Classic grounded theory methodology was applied in its entirety, including simultaneous data collection and analysis, constant comparison, theoretical sampling, memo-writing, open coding, selective coding, theoretical coding, and manual sorting of memos. This resulted in a theory emerging: ‘becoming ready to lose one’s own life’. The theory covers a process that takes place in three types of awareness contexts (concealed, suspicious, and open) and consists of six stages (Muslim, secretly irreligious, secretly Christian, openly irreligious, Christian but considered irreligious, and openly Christian). The study details the relevant personal factors, incentives and deterrents, possible reactions to psychological discomfort, pressure from members of the Muslim community, and possible reactions to this pressure. The theory’s components are illustrated with quotations from the interview transcripts. This work is an original contribution to the fields of conversion studies, missiology, Somali studies, and world Christianity.
Spin waves in the anisotropic fcc kagome antiferromagnet
Creators: name: LeBlanc, M. D.
name: Southern, B. W.
name: Plumer, M. L.
name: Whitehead, J. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Spin wave calculations demonstrate that the macroscopic continuous degeneracy associated with the two-dimensional kagome Heisenberg spin lattice persists in the case of the stacked fcc structure giving rise to zero energy modes in three dimensions. The addition of an effective local cubic anisotropy is shown to remove this continuous degeneracy and introduce a gap in the spectrum as well as modify the inelastic scattering function $S({\bf q},ω)$. This scenario supports earlier Monte Carlo simulations which indicate that the phase transition to long range $q=0$ magnetic order is driven to be discontinuous by critical fluctuations associated with the large degeneracy in the absence of anisotropy, but becomes continuous with the addition of anisotropy. The results are relevant to Ir-Mn alloys which are widely used in the magnetic storage industry in thin film form as the antiferromagnetic pinning layer in spin-valve structures.
description: 11 pages, 3 figures
Love Languages Scale in Indonesian Context
Creators: name: Surijah, Edwin Adrianta
Publisher: name: Zenodo
Year: 2020

description: This is the scale to measure love languages in Indonesian context The scale was based on a previous research, a phenemonological study of love languages in Bali, Indonesia. There are three version of the scale: 1. The item pools (70 items) 2. 50 items (before professional judgment) 3. 45 items (after professional judgment) The blueprint and informed consent are also embedded within the file
Lula's Migration and Foreign Policy Agendas and the Future of South American Regionalism
Creators: name: Brumat, Leiza
name: Pereira , Francisco Denis
Publisher: name: Eurac Research
Year: 2023

description: How will Lula’s migration agenda pan out during this third term in office? How will this affect regional integration in South America?
And which are the challenges that Lula’s migration and regional agendas will face?
Modern Statistical Methods in Oceanography: A Hierarchical Perspective
Creators: name: Wikle, Christopher K.
name: Milliff, Ralph F.
name: Herbei, Radu
name: Leeds, William B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Processes in ocean physics, air-sea interaction and ocean biogeochemistry span enormous ranges in spatial and temporal scales, that is, from molecular to planetary and from seconds to millennia. Identifying and implementing sustainable human practices depend critically on our understandings of key aspects of ocean physics and ecology within these scale ranges. The set of all ocean data is distorted such that three- and four-dimensional (i.e., time-dependent) in situ data are very sparse, while observations of surface and upper ocean properties from space-borne platforms have become abundant in the past few decades. Precisions in observations of all types vary as well. In the face of these challenges, the interface between Statistics and Oceanography has proven to be a fruitful area for research and the development of useful models. With the recognition of the key importance of identifying, quantifying and managing uncertainty in data and models of ocean processes, a hierarchical perspective has become increasingly productive. As examples, we review a heterogeneous mix of studies from our own work demonstrating Bayesian hierarchical model applications in ocean physics, air-sea interaction, ocean forecasting and ocean ecosystem models. This review is by no means exhaustive and we have endeavored to identify hierarchical modeling work reported by others across the broad range of ocean-related topics reported in the statistical literature. We conclude by noting relevant ocean-statistics problems on the immediate research horizon, and some technical challenges they pose, for example, in terms of nonlinearity, dimensionality and computing.
description: Published in at http://dx.doi.org/10.1214/13-STS436 the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Snyder dynamics in a Schwarzschild spacetime
Creators: name: Mignemi, S.
name: Strajn, R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We calculate the orbits of a particle in Schwarzschild spacetime, assuming that the dynamics is governed by a Snyder symplectic structure. With this assumption, the perihelion shift of the planets acquires an additional contribution with respect to the one predicted by general relativity. Moreover, the equivalence principle is violated. If one assumes that Snyder mechanics is valid also for macroscopic systems, these results impose strong constraints on the value of the coupling parameter of the Snyder model.
description: 7 pages
Experimental study of the spatio-temporal development of meter-scale negative discharge in air
Creators: name: Kochkin, P. O.
name: van Deursen, A. P. J.
name: Ebert, U.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We study the development of a negative discharge driven by a Marx generator of about 1 MV in an air gap of 1 up to 1.5 meter, at standard temperature and pressure. We show the evolution of the discharge with nanosecond-fast photography together with the electrical characteristics. The negative discharge develops through four well-distinguished streamer bursts. The streamers have different velocities and life times in different bursts. The last burst triggers a positive inception cloud on the positive grounded electrode and a burst of positive counter-streamers emerges. The pre-discharge then bridges the gap and leaders grow from both electrodes. Finally a spark is formed. Looking closer into the pre-ionized zone near the cathode, we find isolated dots which are potential branching points. These dots act as starting points for positive streamers that move towards the high-voltage electrode. We also find such phenomena as space leaders and leader stepping in our laboratory sparks.
description: 24 pages, 16 figures
Gamma-ray Flare of PKS 1222+216 in 2010: Effect of Jet Dynamics at the Recollimation Zone
Creators: name: Kushwaha, Pankaj
name: Sahayanathan, S.
name: Resmi, L.
name: Singh, K. P.
name: Bhattacharyya, S.
name: Bhattacharya, D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The $γ$-ray flare of PKS 1222+216, observed in June 2010, is interpreted as an outcome of jet dynamics at recollimation zone. We obtained the $γ$-ray light-curves in three different energy bands, namely, 100--300 MeV, 300 MeV--1 GeV and 1--3 GeV from observations by the \emph{Fermi} Large Area Telescope (LAT). We also use the \emph{Swift}--XRT flux from 0.3--10 keV obtained from archival data. We supplement these with the 0.07--0.4 TeV observations with MAGIC telescope, available in the literature. The detection of source at very high energy (VHE, $E>100$ GeV) with a differential photon spectral index of $2.7\pm0.3$ and the rapid variability associated with it suggests that the emission arises from a compact region located beyond the broad line emitting region. The plausible $γ$-ray emission mechanism can then be inverse Compton scattering of IR photons from obscuring torus. Further, the decay time of LAT flare cannot be explained by considering simple radiative loss mechanisms. Hence, to interpret the LAT light curves, we develop a model where the broadband emission originates from a compact region, arising plausibly from the compression of jet matter at the recollimation zone. The flare is then expressed as an outcome of jet deceleration probably associated with this focusing effect. The parameters of the model are further constrained by reproducing the broadband spectral energy distribution of the source obtained during the flare episode. Our study suggests that the particle energy density exceeds magnetic energy density by a large factor which in turn may cause rapid expansion of the emission region. However, near equipartition can be achieved towards the end of LAT flare during which the compact emission region would have expanded to the size of jet cross-section.
description: 16 pages, 2 figures, accepted for publication in MNRAS
The Logarithmic Contributions to the O(α_s^3) Asymptotic Massive Wilson Coefficients and Operator Matrix Elements in Deeply Inelastic Scattering
Creators: name: Behring, A.
name: Bierenbaum, I.
name: Blümlein, J.
name: De Freitas, A.
name: Klein, S.
name: Wißbrock, F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the logarithmic contributions to the massive Wilson coefficients for deep-inelastic scattering in the asymptotic region $Q^2 \gg m^2$ to 3-loop order in the fixed-flavor number scheme and present the corresponding expressions for the massive operator matrix elements needed in the variable flavor number scheme. Explicit expressions are given both in Mellin-$N$ space and $z$-space.
description: 160 pages Latex, 3 Figures, 2 style files
Systematics of type IIB moduli stabilisation with odd axions
Creators: name: Cicoli, M
name: Schachner, A
name: Shukla, P
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: hep-th

description: Moduli stabilisation in superstring compactifications on Calabi-Yau orientifolds remains a key challenge in the search for realistic string vacua. In particular, odd moduli arising from the reduction of 2-forms $(B_2,C_2)$ in type IIB are largely unexplored despite their relevance for inflationary model building. This article provides novel insights into the general structure of 4D $\mathcal{N}=1$ $F$-term scalar potentials at higher orders in the $\alpha^{\prime}$ and $g_{s}$ expansion for arbitrary Hodge numbers. We systematically examine superpotential contributions with distinct moduli dependences which are induced by fluxes or non-perturbative effects. Initially, we prove the existence of a no-scale structure for odd moduli in the presence of $(\alpha^\prime)^{3}$ corrections to the K\"ahler potential. By studying a partially $\mathrm{SL}(2,\mathbb{Z})$-completed form of the K\"ahler potential, we derive the exact no-scale breaking effects at the closed string $1$-loop and non-perturbative D-instanton level. These observations allow us to present rigorous expressions for the $F$-term scalar potential applicable to arbitrary numbers of moduli in type IIB Calabi-Yau orientifold compactifications. Finally, we compute the Hessian for odd moduli and discuss potential phenomenological implications.
In memory of M. I. Polikarpov
Creators: name: Bornyakov, V. G.
name: Buividovich, P. V.
name: Zubkov, M. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: This obituary is devoted to M. I. Polikarpov (28.12.1952 - 18.07.2013), our teacher, our colleague, our friend. We recollect some facts of his biography and stages of his scientific career, and make a brief review of some of his most known scientific works. We conclude with some messages of condolence which were received from his colleagues and friends after his sudden death.
description: 8 pages, PoS style
title: Political cycle, investor sentiment and stock returns
Creators: name: Hu, Feiyuan
Publisher: name: University of Glasgow
Year: 2022

description: In this paper, we test the mediator and moderator hypothesis in the relations among political cycles, investor sentiment and stock market returns. By using sentiment indicators like Baker and Wurgler’s (2006) sentiment index (BW), the Conference Board Consumer Confidence Index (CCI), the University of Michigan’s Consumer Sentiment Index (MCSI) and the Economic Policy Uncertainty Index (EPU) of Baker et al. (2016) from December 1965 to December 2018, we find only BW and MCSI function as a mediator between political cycles and stock markets. And the indirect effect via BW accounts for larger proportion (16.34%) of total effect than that via MCSI (4.87%). The direct effect still accounts for the major part of the total effect of political cycles on stock markets. The moderator hypothesis does not apply to the three-variable system of political cycles, investor sentiment and stock markets although the interaction term of political cycle and investor sentiment is significant.
X-ray Activity in SPI Candidate HD179949
Creators: name: Acharya, Anshuman
name: Kashyap, Vinay L.
name: Saar, Steven H.
name: Singh, Kulinder Pal
name: Cuntz, Manfred
Publisher: name: Zenodo
Year: 2022
Subjects: Star-planet interactions
Exoplanets
X-ray Astronomy
Hot jupiters
F-type stars

description: We analyse Chandra X-ray data of HD179949, a Sun-like star with a close Jupiter-mass planet. We study short-term spectral variability as well as phase-dependent Star-Planet Interaction (SPI) effects. We model the observed spectra with a two-component thermal model and obtain robust estimates for abundances. We find consistent estimates for change points across multiple passbands and evidence for short-term variability in spectral hardness. We also find evidence for X-ray variability related to the planetary orbit of the close Jupiter-mass planet.
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Multiwavelength modelling the SED of supersoft X-ray sources. II. RS Ophiuchi: From the explosion to the SSS phase
Creators: name: Skopal, Augustin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: RS Oph is a recurrent symbiotic nova that undergoes nova-like outbursts on a time scale of 20 years. Its two last eruptions (1985 and 2006) were subject of intensive multiwavelengths observational campaign from the X-rays to the radio. This contribution aims to determine physical parameters and the ionization structure of the nova from its explosion to the first emergence of the supersoft X-rays (day 26) by using the method of multiwavelength modelling the SED. From the very beginning of the eruption, the model SED revealed the presence of both a strong stellar and nebular component of radiation in the spectrum. During the first 4 days, the nova evinced a biconical ionization structure. The $\sim 8200$ K warm and 160 - 200 R$_{\odot}$ extended pseudo-photosphere encompassed the white dwarf (WD) around its equator to the latitude $>40^{\circ}$. The remaining space around the WD's poles was ionized, producing a strong nebular continuum with the emission measure $EM \sim 2.3 \times 10^{62}$ cm$^{-3}$ via the fast wind from the WD. The luminosity of the burning WD was highly super-Eddington for the whole investigated period. The wind mass loss at rates of $10^{-4} - 10^{-5}$ M$_{\odot}$yr$^{-1}$ and the presence of jets suggest an accretion throughout a disk at a high rate, which can help to sustain the super-Eddington luminosity of the accretor for a long time.
description: 13 pages, 5 figures, 2 tables, accepted for New Astronomy