cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evaluation of bull performance based on in vitro fertilization studies
Creators: name: Kurtu, Jamal A.
Publisher: name: University of British Columbia
Year: 2009

description: The first part of this study investigated if differences among bulls as semen donors, and sperm concentrations affected cleavage rate of oocytes. Three levels of sperm concentration and their effect on cleaving oocytes were analyzed. Frozen-thawed semen samples from five Holstein bulls and oocytes (n=728) harvested from slaughterhouse ovaries were used in this experiment. Oocytes were matured in vitro with Hams' F-10 and estrus cow serum (ECS) media, then fertilized in vitro using Tyrode Albumin Lactate Pyruvate (TALP) media. The resulting embryos were subsequently cultured using Hams' F-10 and fetal calf serum (FCS) in the presence of oviductal cells . The three sperm concentrations used in the study were 2x106, 1x1O6 and 0.5x106 /ml. Approximately 56- 72 h after addition of sperm, cleavage as indicated by a 2-cell stage embryo was observed and recorded. A significant difference (P< 0.001) in cleavage rate was observed among the five bulls. Sperm concentration did not affect cleavage rate. Bull x sperm interaction was also not significant (P>0.05). The in vivo fertility based on 60 - 90 d non-return rate (NRR) to first insemination did not correlate with the in vitro cleavage rate (P>0.05, r = 0.51). In the second part of the study, the same bulls were tested for their ability to cause further embryonic development beyond cleavage to the blastocyst stage. The resulting embryos were frozen at either the morula or blastocyst stage to study the freeze- thaw survival rate. Unlike in the first part of the study, the oocytes were matured in vitro using tissue culture medium (TCM 199) supplemented with superovulated cow serum (SCS), fertilized in vitro using Brackett and Oliphant (BO) media. The embryos were cultured for 7-9 d using TCM 199 medium supplemented with insulin and SCS in the presence of cumulus cell monolayers. Embryos that reached the morula or blastocyst stage were frozen in 0.25 cc straws by controlled freezing and thawing procedure using 1.6 M propylene glycol as a cryoprotectant. No significant differences (P>0.05) were observed among all five bulls in their ability to cause further embryonic development. In addition, the post thaw survival rate of embryos produced by all five bulls following freeze-thaw did not differ significantly (P>0.05). The in vivo fertility based on 60 - 90 d non-return rates (NRR) to the first insemination did not correlate with the in vitro embryonic development and freeze-thaw survival rate (P>0.05). The number and quality of embryos produced using the combination of TCM 199 medium and defined BO media with serum was found to be superior to the combination of Hams' F10 and TALP media with serum.
Broad-band plasmonic isolator compatible with low-gyrotropy magneto-optical material
Creators: name: Abadian, Sevag
name: Magno, Giovanni
name: Yam, Vy
name: Dagens, Béatrice
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Optical isolator remains one of the main missing elements for photonic integrated circuits despite several decades of research. The best solutions up to now are based on transverse magneto-optical effect using either narrow-band resonators or high-gyrotropy magneto-optical materials with difficult integration on usual photonic platforms. We propose in this paper a radically new concept which enables performing broad-band non-reciprocal transmission even in the case of low-gyrotropy material. The principle explores the separation of back and forth light paths, due to the magneto-biplasmonic effect, i.e., the coupled mode asymmetry induced in plasmonic slot waveguides loaded with a magneto-optical (MO) layer. We show numerically that such a metal-MO dielectric-metal slot waveguide combined with suitable side-coupled lossy rectangular nanocavities gives more than 18 dB isolation ratio on several tens of nanometers bandwidth, with only 2 dB insertion losses. We propose an analytical approach describing such a magneto-plasmonic slot waveguide to identify the involved physical mechanisms and the optimization rules of the isolator. Additionally, we show that low-gyrotropy material (down to ~0.005) can be considered for isolation ratio up to 20 dB, opening the road to a new class of integrated isolators using easy-to-integrate hybrid or composite materials.
description: 9 pages, 9 figures
Transcription of a demonstration of preparing grey willow
Creators: name: Parker, Verdena
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-011011-03: Transcription of a demonstration of preparing grey willow for basket making (file VP-250711-07). The same recording was transcribed separately in files VP-300811-02 and VP-300811-03.
Drug-induced activation of integrin alpha IIb beta 3 leads to minor localized structural changes
Creators: name: Janke, Una
name: Kulke, Martin
name: Buchholz, Ina
name: Geist, Norman
name: Langel, Walter
name: Delcea, Mihaela
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Integrins are transmembrane proteins involved in hemostasis, wound healing, immunity and cancer. In response to intracellular signals and ligand binding, integrins adopt different conformations: the bent (resting) form; the intermediate extended form; and the ligand-occupied active form. An integrin undergoing such conformational dynamics is the heterodimeric platelet receptor alphaIIbbeta3. Although the dramatic rearrangement of the overall structure of alphaIIbbeta3 during the activation process is potentially related to changes in the protein secondary structure, this has not been investigated so far in a membrane environment. Here we examine the Mn2+- and drug-induced activation of alphaIIbbeta3 and the impact on the structure of this protein reconstituted into liposomes. By quartz crystal microbalance with dissipation monitoring and activation assays we show that Mn2+ induces binding of the conformation-specific antibody PAC-1, which only recognizes the extended, active integrin. Circular dichroism spectroscopy reveals, however, that Mn2+-treatment does not induce major secondary structural changes of alphaIIbbeta3. Similarly, we found that treatment with clinically relevant drugs (e.g. quinine) led to the activation of alphaIIbbeta3 without significant changes in protein secondary structure. Molecular dynamics simulation studies revealed minor local changes in the beta-sheet probability of several extracellular domains of the integrin. Our experimental setup represents a new approach to study transmembrane proteins, especially integrins, in a membrane environment and opens a new way for testing drug binding to integrins under clinically relevant conditions.
Distillation of News Flow into Analysis of Stock Reactions
Creators: name: Zhang, Junni L.
name: Härdle, Wolfgang Karl
name: Chen, Cathy Y.
name: Bommes, Elisabeth
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Finance (q-fin.ST)
subject: FOS: Economics and business

description: The gargantuan plethora of opinions, facts and tweets on financial business offers the opportunity to test and analyze the influence of such text sources on future directions of stocks. It also creates though the necessity to distill via statistical technology the informative elements of this prodigious and indeed colossal data source. Using mixed text sources from professional platforms, blog fora and stock message boards we distill via different lexica sentiment variables. These are employed for an analysis of stock reactions: volatility, volume and returns. An increased sentiment, especially for those with negative prospection, will influence volatility as well as volume. This influence is contingent on the lexical projection and different across Global Industry Classification Standard (GICS) sectors. Based on review articles on 100 S&P 500 constituents for the period of October 20, 2009, to October 13, 2014, we project into BL, MPQA, LM lexica and use the distilled sentiment variables to forecast individual stock indicators in a panel context. Exploiting different lexical projections to test different stock reaction indicators we aim at answering the following research questions: (i) Are the lexica consistent in their analytic ability? (ii) To which degree is there an asymmetric response given the sentiment scales (positive v.s. negative)? (iii) Are the news of high attention firms diffusing faster and result in more timely and efficient stock reaction? (iv) Is there a sector-specific reaction from the distilled sentiment measures? We find there is significant incremental information in the distilled news flow and the sentiment effect is characterized as an asymmetric, attention-specific and sector-specific response of stock reactions.
Structure and composition of C-S-H compounds up to 143 GPa
Creators: name: Bykova, Elena
name: Bykov, Maxim
name: Chariton, Stella
name: Prakapenka, Vitali B.
name: Glazyrin, Konstantin
name: Aslandukov, Andrey
name: Aslandukova, Alena
name: Criniti, Giacomo
name: Kurnosov, Alexander
name: Goncharov, Alexander F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We synthesized two C-S-H compounds from a mixture of carbon and sulfur in hydrogen and from sulfur in mixed methane-hydrogen fluids at 4 GPa. X-ray synchrotron single-crystal diffraction and Raman spectroscopy have been applied to these samples up to 58 and 143 GPa, respectively. Both samples show a similar Al2Cu type I4/mcm basic symmetry, while the hydrogen subsystem evolves with pressure via variously ordered molecular and extended modifications. The methane bearing sample lowers symmetry to an orthorhombic Pnma structure after laser heating to 1400 K at 143 GPa. The results suggest that superconducting C-S-H compounds are structurally different from a common Im-3m H3S.
description: 24 pages, 8 figures, 6 Tables, 39 references
Versöhnung (nur) durch Erinnerung - oder (auch) durch Vergessen?
Creators: name: Sattler, Dorothea
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 58 Nr. 3 (2009): Ökumenische Rundschau, Band 58, Heft 3
Cryogenic cleaning of tin-drop contamination on surfaces relevant for extreme ultraviolet light collection
Creators: name: Böwering, Norbert
name: Meier, Christian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Improvement of tool reliability and uptime is a current focus in development of extreme ultraviolet lithography. The lifetime of collection mirrors for extreme ultraviolet light in tin-based plasma light sources is limited considerably by contamination with thick tin deposits that cannot be removed sufficiently fast by plasma etching. For tin droplet splats sticking to large substrates, we have developed and compared several efficient cleaning techniques based on cryogenic cooling. A silicon carbide substrate and different silicon wafer samples with up to 6 inch diameter with the surface uncoated, multilayer-coated, unstructured and grating-structured were tested. After tin dripping onto heated samples, embrittlement of droplet contamination is induced in-situ by stresses during phase transformation, following the initiation of tin pest with seed crystals of gray tin. Conversion of initially adhesive deposits to loose gray tin has been reached in less than 24 hours on all tested surfaces by continuous cooling with cold nitrogen vapor to temperatures in the range of -30 to -50 °C. Alternatively, stress-initiated tin-removal by delamination of beta-Sn droplet splats has been attained via contraction strain induced by strong cooling to temperatures of around -120 °C. Profilometry has been used to analyze the bottom side of tin droplet splats removed from a grating-structured wafer. The in-situ tin cleaning techniques give results comparable to fast ex-situ cleaning that has been achieved either by sample immersion in liquid nitrogen or by splat removal after CO2 snowflake aerosol impact using a hand-held jet-nozzle. The implementation of the in-situ phase-conversion concept for the cleaning of collector mirrors in commercial light sources for lithography is discussed.
description: 23 pages, 9 figures
Challenging the myth of ’Young Germany" : conflict and consensus in the works of Karl Gutzkow, Heinrich Laube, Theodor Mundt and Ludolf Wienbarg
Creators: name: Kinney, Tracey Jane
Publisher: name: University of British Columbia
Year: 2009

description: On December 10, 1835 the Federal Diet of the German Confederation banned the publication and distribution of any works written by a group identified as "das junge Deutschland." The Diet explicitly named Karl Gutzkow, Heinrich Laube, Theodor Mundt, Ludolf Wienbarg, and Heinrich Heine as members of this group. Since 1835 the term "Young Germany" has been widely accepted among historians and literary analysts alike. However, there has been virtually no agreement regarding the purposes of the group, its importance, or even its membership. In recent years, historical studies have gradually come to accept that the notion of a unified group called "Young Germany" is a myth, but no study has attempted to identify the key issues which divided the so-called Young Germans. This study examines the content of the 'Young German' works in the years prior to the Federal ban in order to determine the nature of the disagreements which divided Gutzkow, Laube, Mundt and Wienbarg. By utilizing the voluminous monographic and journalistic works produced by the socalled Young Germans, this study establishes their positions on many of the key issues of the Vormarz era, in particular, the emancipation of women, religious emancipation and Saint- Simonianism, and political emancipation. Based upon these positions, this study argues that there was little consensus among the core 'members.' Each man believed that he was contributing to the creation of a new type of literature which would end the Romantic separation of literature from the real world and usher in a more utilitarian form of writing. The author would no longer serve only the muses of literature, he would also serve more practical causes. Beyond this shared conviction, however, there were few issues upon which Gutzkow, Laube, Mundt and Wienbarg agreed. Moreover, even on the basic assumption that writers and their works must serve practical causes there was considerable conflict regarding the implementation of this ideal. On the larger socio-political issues of the day there was virtually no agreement. Some of the 'Young Germans' expressed fairly traditional opinions on these topics, others were remarkably modern. Seldom if ever, however, did they speak with one voice.
title: Courtroom Pragmatics: Analysis of Questions and Answers in the Tomb Robbery Papyri
Creators: name: Blakesley, CE
Publisher: name: University of Liverpool Repository
Year: 2017

description: This work looks at the legal texts known as the Tomb Robbery Papyri of the 19th and 20th Dynasties, with particular focus on the social and pragmatic power dynamic between the Tribunal and the Accused. The aim is to examine how far the strategies and wants of the Tribunal and Accused can be assessed through pragmatic theory and social status, and what effect these strategies and wants have on the discourse. This has been done through Politeness Theory, Face Threatening Acts, Questioning Strategy (Interrogatives/Speech Acts), Response Strategy, and similar courtroom situations such as the Early Modern English Courtroom. Upon examining these interactions, it becomes clear that not only did the Tribunal have a questioning strategy designed to elicit the most information through Face Threatening Acts and Impoliteness, but the response strategy of the Accused, despite their lack of legal representation, is, in some cases, a fairly substantial rebuttal for those in such a weak position. It becomes evident that while some Accused were prompted to provide long narrative answers of their misdeeds (often as a result of torture, though not without their own strategy of implicating others), or utilise what are termed in this thesis as “denial phrases”, such as bpy=i ptr (I did not see) or wA r=i wA r Ha=i (Far from me, far from my body), with their testimonies being relatively short and containing little information, others chose a more combative stance. These more combative responses are shown to have a greater number of back and forth responses between Tribunal and Accused, which often involve each discourse participant changing strategy so as to gain leverage, albeit temporarily, over the other. This type of answering strategy is also shown to contain more ‘focus constructions’ such as the Second Tense or Pseudo Cleft sentence, which demonstrate the Accused’s attempts to subvert the questioning narrative of the Tribunal and replace it with their own ‘truth’. This thesis demonstrates that there is more to the interactions between Tribunal and Accused in this corpus than simply well-ordered questions and responses.
Deep Reinforcement Learning in Lane Merge Coordination for Connected Vehicles
Creators: name: Nassef, Omar
name: Sequeira, Luis
name: Salam, Elias
name: Mahmoodi, Toktam
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: In this paper, a framework for lane merge coordination is presented utilising a centralised system, for connected vehicles. The delivery of trajectory recommendations to the connected vehicles on the road is based on a Traffic Orchestrator and a Data Fusion as the main components. Deep Reinforcement Learning and data analysis is used to predict trajectory recommendations for connected vehicles, taking into account unconnected vehicles for those suggestions. The results highlight the adaptability of the Traffic Orchestrator, when employing Dueling Deep Q-Network in an unseen real world merging scenario. A performance comparison of different reinforcement learning models and evaluation against Key Performance Indicator (KPI) are also presented.
Lattices and Periodic Geodesics in Pseudoriemannian 2-step Nilpotent Lie Groups
Creators: name: Cordero, Luis A.
name: Parker, Phillip E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53C50, 22E25, 53B30, 53C30

description: We give a basic treatment of lattices $Γ$ in these groups. Certain tori $T_F$ and $T_B$ provide the model fiber and the base for a submersion of $Γ\backslash N$. This submersion may not be pseudoriemannian in the usual sense, because the tori may be degenerate. We then begin the study of periodic geodesics in these compact nilmanifolds, obtaining a complete calculation of the period spectrum of certain flat spaces.
description: tp + 23 pp
Longitudinal and temporal variation in fish assemblage structure along lowland prairie Neotropical streams and relationships with environmental variables
Creators: name: del Puerto, J. M Paredes
name: Colautti, D. C.
name: García, I. D.
name: Fanelli, S. L.
name: Paracampo, A. H.
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: The structure of fish assemblages in lotic systems usually varies from headwaters to the mouth, related to geomorphological and physicochemical changes. We evaluated the main processes that structure the fish assemblages on spatial, seasonal, and decadal (2009-2010; 2019-2020) scales and relationships with environmental variables in two low-impacted Neotropical Pampean streams tributaries to the Río de la Plata estuary (RdlP). Environmental variables related to the longitudinal variation in the fish assemblage were depth, macrophyte cover, and altitude, showing higher values in the headwater streams compared to downstreams. Species richness increased towards lower stream sectors due to the migration of riverine species from the RdlP. Beta diversity partitioning analysis showed that the greatest proportion of variability was explained by the turnover component in both the longitudinal and seasonal analyses. The headwater streams showed a more stable composition, consisting of species of the order Characiformes associated with aquatic macrophytes, while the downstream streams recorded greater variability due to the entry of migrant Siluriformes from the RdlP, highlighting the essential ecological function of Pampean streams for RldP fish assemblages. The decadal comparison showed that the longitudinal structure is persistent in the long term regardless of the study period. Therefore, the consistent pattern of longitudinal variation in fish assemblages and its explanatory variables have applicability in the conservation and biomonitoring of lowland streams, serving as reference for recovery efforts.
Rupture Forces among Human Blood Platelets at different Degrees of Activation
Creators: name: Nguyen, Thi-Huong
name: Palankar, Raghavendra
name: Bui, Van-Chien
name: Medvedev, Nikolay
name: Greinacher, Andreas
name: Delcea, Mihaela
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Little is known about mechanics underlying the interaction among platelets during activation and aggregation. Although the strength of a blood thrombus has likely major biological importance, no previous study has measured directly the adhesion forces of single platelet-platelet interaction at different activation states. Here, we filled this void first, by minimizing surface mediated platelet activation and second, by generating a strong adhesion force between a single platelet and an AFM cantilever, preventing early platelet detachment. We applied our setup to measure rupture forces between two platelets using different platelet activation states, and blockade of platelet receptors. The rupture force was found to increase proportionally to the degree of platelet activation, but reduced with blockade of specific platelet receptors. Quantification of single platelet-platelet interaction provides major perspectives for testing and improving biocompatibility of new materials; quantifying the effect of drugs on platelet function; and assessing the mechanical characteristics of acquired/inherited platelet defects.
Les répercussions de l'inflation sur les coûts  des crédits bancaires aux particuliers : les crédits à la consommation et les crédits immobiliers
Creators: name: Sattar MIHOUBI
Publisher: name: Zenodo
Year: 2024

description: Cette étude vise à analyser empiriquement l'influence du taux d'inflation (TI) sur le taux d'intérêt effectif moyen (TEM) des crédits bancaires aux particuliers en Tunisie, en se concentrant sur les crédits à la consommation et les crédits immobiliers. Les hypothèses de recherche sont les suivantes H1 : Le taux d'inflation (TI) a un impact significatif sur le taux d'intérêt effectif moyen (TEM) des crédits bancaires aux particuliers. H2 : Le taux d'inflation (TI) n'a pas d'impact significatif sur le taux d'intérêt effectif moyen (TEM) des crédits bancaires aux particuliers. L'étude porte sur la période 2009-2022, en s'appuyant sur les données collectées auprès de la Société Tunisienne de Banque (STB), de la Banque Centrale de Tunisie (BCT) et de l'Institut National de la Statistique (INS). Une modélisation économétrique sera réalisée à l'aide du logiciel SPSS version 27 afin de tester les hypothèses.Les résultats de cette étude empirique permettront de mieux comprendre les mécanismes par lesquels l'inflation affecte le coût des crédits bancaires aux particuliers en Tunisie, en distinguant les impacts sur les crédits à la consommation et les crédits immobiliers.
title: Dehydration of methanol and ethanol in the gas phase over heteropoly acid catalysts
Creators: name: Alharbi, WN
Publisher: name: University of Liverpool Repository
Year: 2017

description: The aim of this thesis is to investigate heterogeneous catalysis for the dehydration of methanol and ethanol at a gas-solid interface over a wide range of solid Brønsted acid catalysts based on Keggin-type heteropoly acids (HPAs), focussing on the formation of dimethyl ether (DME) and diethyl ether (DEE), respectively. The dehydration of methanol to dimethyl ether (DME) was studied over a wide range of bulk and supported HPAs and was compared with the reaction over HZSM-5 zeolites (Si/Al = 10−120). Turnover rates for these catalysts were measured under zero-order reaction conditions. The HPA catalysts were demonstrated to have much higher catalytic activities than the HZSM-5 zeolites. A good correlation between the turnover rates and catalyst acid strengths, represented by the initial enthalpies of ammonia adsorption, was established. This correlation holds for the HPA and HZSM-5 catalysts studied, which indicates that the methanol-to-DME dehydration occurs via the same (or a similar) mechanism with both HPA and HZSM-5 catalysts, and that the turnover rate of methanol dehydration for both catalysts is primarily determined by the strength of catalyst acid sites, regardless of the catalyst pore geometry. Dehydration of ethanol was also studied over a wide range of solid Brønsted acid catalysts based on Keggin-type HPAs in a continuous flow fixed-bed reactor in the temperature range of 90-220 oC. The catalysts included H3PW12O40 (HPW) and H4SiW12O40 (HSiW) supported on SiO2, TiO2, Nb2O5 and ZrO2 with sub-monolayer HPA coverage, as well as bulk acidic Cs salts of HPW (Cs2.5H0.5PW12O40 and Cs2.25H0.75PW12O40) and the corresponding core-shell materials with the same total composition (15%HPW/Cs3PW12O40 and 25%HPW/Cs3PW12O40, respectively) comprising HPW supported on the neutral salt Cs3PW12O40. The ethanol-to-DEE reaction was found to be zero order in ethanol in the range of 1.5-10 kPa ethanol partial pressure. The acid strength of the catalysts was characterised by ammonia adsorption microcalorimetry. A fairly good correlation between the catalyst activity (turnover frequency) and the catalyst acid strength (initial enthalpy of ammonia adsorption) was established, which demonstrates that Brønsted acid sites play an important role in ethanol-to-DEE dehydration over HPA catalysts. The acid strength and the catalytic activity of core-shell catalysts HPW/Cs3PW12O40 did not exceed those of the corresponding bulk Cs salts of HPW with the same total composition, which contradicts the claims in the literature of the superiority of the core-shell HPA catalysts.
Polyakov soldering and second order frames : the role of the Cartan connection
Creators: name: Lazzarini, Serge
name: Tidei, Carina
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The so-called "soldering" procedure performed by A.M. Polyakov in [1] for a SL(2,R)-gauge theory is geometrically explained in terms of a Cartan connection on second order frames of the projective space RP^1. The relationship between a Cartan connection and the usual (Ehresmann) connection on a principal bundle allows to gain an appropriate insight into the derivation of the genuine " diffeomorphisms out of gauge transformations" given by Polyakov himself.
description: Accept\'e pour publication dans Lett. Math. Phys
Shock-induced heating and transition to turbulence in a hypersonic boundary layer
Creators: name: Fu, Lin
name: Karp, Michael
name: Bose, Sanjeeb T.
name: Moin, Parviz
name: Urzay, Javier
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 76K05, 76N06, 76N20, 76F06, 76F40, 76F50, 76F65, 76F02

description: The interaction between an incident shock wave and a Mach-6 undisturbed hypersonic laminar boundary layer over a cold wall is addressed using direct numerical simulations (DNS) and wall-modeled large-eddy simulations (WMLES) at different angles of incidence. At sufficiently high shock-incidence angles, the boundary layer transitions to turbulence via breakdown of near-wall streaks shortly downstream of the shock impingement, without the need of any inflow free-stream disturbances. The transition causes a localized significant increase in the Stanton number and skin-friction coefficient, with high incidence angles augmenting the peak thermomechanical loads in an approximately linear way. Statistical analyses of the boundary layer downstream of the interaction for each case are provided that quantify streamwise spatial variations of the Reynolds analogy factors and indicate a breakdown of the Morkovin's hypothesis near the wall, where velocity and temperature become correlated. A modified strong Reynolds analogy with a fixed turbulent Prandtl number is observed to perform best. Conventional transformations fail at collapsing the mean velocity profiles on the incompressible log law. The WMLES prompts transition and peak heating, delays separation, and advances reattachment, thereby shortening the separation bubble. When the shock leads to transition, WMLES provides predictions of DNS peak thermomechanical loads within $\pm 10\%$ at a computational cost lower than DNS by two orders of magnitude. Downstream of the interaction, in the turbulent boundary layer, WMLES agrees well with DNS results for the Reynolds analogy factor, the mean profiles of velocity and temperature, including the temperature peak, and the temperature/velocity correlation.
description: 48 pages, 36 figures
Wide-field Fourier transform spectral imaging
Creators: name: Atlan, Michael
name: Gross, Michel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We report experimental results of parallel measurement of spectral components of the light. The temporal fluctuations of an optical field mixed with a separate reference are recorded with a high throughput complementary metal oxide semi-conductor camera (1 Megapixel at 2 kHz framerate). A numerical Fourier transform of the time-domain recording enables wide-field coherent spectral imaging. Qualitative comparisons with frequency-domain wide-field laser Doppler imaging are provided.
The visibilization of the new Buddhist heritage in Spain: examples of artistic hybridization in vajrayana retreat centres
Creators: name: DIEZ DE VELASCO, Francisco
Publisher: name: Zenodo
Year: 2020
Subjects: Buddhism in Spain, Tibetan Buddhism, Western Buddhism, Buddhist art, artistic hybridization, Vajrayana

description: The presence of Buddhist worship centres in Spain is recent, the first were established from 1977. But in the later years it has emerged a remarkable new Spanish Buddhist artistic heritage with two ways of expression. In some cases it has been chosen to import Asian constructive and artistic models and the aesthetic impact with respect to Spanish artistic heritage is remarkable. In other cases are combined Oriental elements with local or modern elements, producing an interesting hybridization. In order to exemplify that hybridization in this paper are reviewed six retreat centres of Vajrayana Buddhism in Spain (Dag Shang Kagyu, O Sel Ling, Karma Guen, Sakya Tashi Ling, Sakya Foundation and Kadampa Hotel).
Data for the manuscript entitled "Coral community composition linked to hypoxia exposure" in Global Change Biology
Creators: name: Lucey, Noelle
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 410203
subject: Ecosystem function
classificationCode: 410102
subject: Ecological impacts of climate change and ecological adaptation
classificationCode: 310302
subject: Community ecology (excl. invasive species ecology)
classificationCode: 310913
subject: Invertebrate biology
classificationCode: 310912
subject: Comparative physiology
classificationCode: 370801
subject: Biological oceanography

description: The environmental and ecological datasets associated with this manuscript are included here, and correspond to the EcoSurveyDataAnalysis.RMDThe data from the two experiments are provided in the multispp_bleaching.csvFurther details available at: bocascorcom.github.io
Giant piezoresistive effect and strong band gap tunability in ultrathin InSe upon biaxial strain
Creators: name: Zhao, Qinghua
name: Wang, Tao
name: Frisenda, Riccardo
name: Castellanos-Gomez, Andres
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The ultrathin nature and dangling bonds free surface of two-dimensional (2D) semiconductors allow for significant modifications of their band gap through strain engineering. Here, thin InSe photodetector devices are biaxially stretched, finding, a strong band gap tunability upon strain. The applied biaxial strain is controlled through the substrate expansion upon temperature increase and the effective strain transfer from the substrate to the thin InSe is confirmed by Raman spectroscopy. The band gap change upon biaxial strain is determined through photoluminescence measurements, finding a gauge factor of up to ~200 meV/%. We further characterize the effect of biaxial strain on the electrical properties of the InSe devices. In the dark state, a large increase of the current is observed upon applied strain which gives a piezoresistive gauge factor value of ~450-1000, ~5-12 times larger than that of other 2D materials and of state-of-the-art silicon strain gauges. Moreover, the biaxial strain tuning of the InSe band gap also translates in a strain-induced redshift of the spectral response of our InSe photodetectors with ΔEcut-off ~173 meV at a rate of ~360 meV/% of strain, indicating a strong strain tunability of the spectral bandwidth of the photodetectors.
description: 5 main text figures, 1 table comparing the strain tunable bandgap for different 2Ds and 11 supporting information figures
Rhabdoblatta pallida
Creators: name: Mbia, Donald-L'or Nyame
name: Ngon, Eric Belmond Biram à
name: Legendre, Frédéric
name: Menbohan, Samuel Foto
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Blattodea
Blaberidae
Rhabdoblatta
Rhabdoblatta pallida

description: Rhabdoblatta pallida (Borg, 1902)
Figs 19–21; Table 6
Epilampra pallida Borg, 1902: 13.
Epilampra minuta Borg, 1902: 14.
Epilampra borgi Shelford, 1910: 14 (unnecessary replacement name for Epilampra pallida).
Epilampra minuta – Shelford 1909b: 479; 1910: 14. — Anonymous 1910: 579. — Sjöstedt 1933: 7. Epilampra pallida – Sjöstedt 1933: 7. — Princis 1947: 59; 1962: 210; 1963a: 137.
Rhabdoblatta pallida – Vanschuytbroeck 1970: 14. — Kumar 1975: 83.
Material examined
Holotype
CAMEROON • ♀; “Camerun; Sjöstedt; Epilampra pallida Borg, det. K. Princis 1957; 123 57; 453 73; Typus ”; NHRS, NRM-BLAT 0002115 [pictures only].
Additional specimens
CAMEROON • 1 ♂; “Camerun; 10/2 91, 10.II.1891; Sjöstedt”; NHRS, NRM-BLAT 0002113 [pictures only] • 1 ♂; “Camerun, Itoki; 22/1 91, 22.I.1891; Sjöstedt; typus of minuta Borg; 398 57”; NHRS, NRM-BLAT 0002114 [pictures only].
DEMOCRATIC REPUBLIC OF THE CONGO • 1 ♀; “Congo Belge, Kivu Masisi, Le Moult; 1938” LUHM.
REPUBLIC OF GUINEA • 1 ♀; “ Mt Nimba N.E., 500–700 m; IFAN – 1946; A. VILLIERS”; MNHN-EP7614 • 1 juv.; “Nimba (Guinée), Serengbara; II.VI.42; M. Lamotte; Epilampra pallida Borg juv., det. K. Princis 1960”; MNHN-EP7604.
UNKNOWN • 1 ♀; “ Epilampra pallida ♀ Borg, det. K. Princis 1956”; MNHN-EP7615.
Diagnosis and history
This species was described as Epilampra pallida from a female specimen, whose habitus was described and drawn (Borg 1902). Its junior synonum Epilampra minuta was described in the same work, from a male and a female specimen. Note that Borg apparently described the species from two female specimens but he also reported drawing a male specimen, which was later confirmed by Princis (1963a) who illustrated the male subgenital plate and tergal specialization (near the junction of tergites VIII–IX). The shape and localization of this tergal gland is diagnostic (Kumar 1975).
Measurements of adults
Female (n = 3): pronotum length ×width: 4.5–5.6 ×5.9–6.9, tegmina length: 19.2–22.2, overall length ×width: 17.2–23.4×7.5–8.7.
Habitat
Unknown.
*nymph
Distribution
This species is known from Cameroon, Gabon, Equatorial Guinea and, putatively, the Republic of Guinea (Table 6).
description: Published as part of Mbia, Donald-L'or Nyame, Ngon, Eric Belmond Biram à, Legendre, Frédéric & Menbohan, Samuel Foto, 2024, Semi-aquatic Epilamprinae cockroaches (Blattodea: Blaberidae) in Cameroon: towards a revision of continental African species of Rhabdoblatta Kirby, 1903 and Africalolampra Roth, 1995, pp. 1-57 in European Journal of Taxonomy 946 (1) on pages 31-34, DOI: 10.5852/ejt.2024.946.2615, http://zenodo.org/record/13177205
Von geheilten Erinnerungen und versöhnendem Vergessen zu heilender Erwartung
Creators: name: Vletsis, Athanasios
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 58 Nr. 3 (2009): Ökumenische Rundschau, Band 58, Heft 3
Anti-platelet factor 4/polyanion antibodies mediate a new mechanism of autoimmunity
Creators: name: Nguyen, Thi-Huong
name: Medvedev, Nikolay
name: Delcea, Mihaela
name: Greinacher, Andreas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Antibodies recognizing complexes of the chemokine platelet factor 4 (PF4-CXCL4) and polyanions (P) opsonize PF4-coated bacteria hereby mediating bacterial host defense. A subset of these antibodies may activate platelets after binding to PF4-heparin complexes, causing the prothrombotic adverse drug reaction heparin-induced thrombocytopenia (HIT). In autoimmune-HIT, anti-PF4-P-antibodies activate platelets in the absence of heparin. Here we show that antibodies with binding forces of approximately 60-100 pN activate platelets in the presence of polyanions, while a subset of antibodies from autoimmune-HIT patients with binding forces greater than 100 pN binds to PF4 alone in the absence of polyanions. These antibodies with high binding forces cluster PF4-molecules forming antigenic complexes which allow binding of polyanion-dependent anti-PF4-P-antibodies. The resulting immunocomplexes induce massive platelet activation in the absence of heparin. Antibody-mediated changes in endogenous proteins that trigger binding of otherwise non-pathogenic (or cofactor-dependent) antibodies may also be relevant in other antibody-mediated autoimmune disorders.
Story about making a quilt
Creators: name: Parker, Verdena
name: Escamilla, Ramón
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-011011-01: A story about making a quilt for a boy in Hoopa, told in Hupa alternating with English.
Robust tests on the equality of variances
Creators: name: Lai, Man-Po
Publisher: name: University of British Columbia
Year: 2009

description: The classic F test for the hypothesis concerning the equality of two population variances is known to be non-robust. When we apply the classical F test to the non-normal samples, the actual size of the test can be different from its nominal level. Therefore, several robust alternatives have been introduced in the literature. In this thesis, I will present some of these alternatives, and illustrate their application with some examples. A new approach will also be introduced. The best feature of this method is that it seems to be able to overcome the adverse effect of outliers. A Monte Carlo study is used to compare the new test with the F test and the other methods. The results of this study are encouraging for the new test.
Neutral tritium gas reduction in the KATRIN differential pumping sections
Creators: name: Marsteller, Alexander
name: Bornschein, Beate
name: Bornschein, Lutz
name: Drexlin, Guido
name: Friedel, Fabian
name: Gehring, Rainer
name: Grohmann, Steffen
name: Gumbsheimer, Rainer
name: Hackenjos, Moritz
name: Jansen, Alexander
name: Kosmider, Andreas
name: LaCascio, Luisa
name: Lichter, Steffen
name: Müller, Klaus
name: Priester, Florian
name: Rinderspacher, Rolf
name: Röllig, Marco
name: Röttele, Carsten
name: Sharipov, Felix
name: Sturm, Michael
name: Welte, Stefan
name: Wolf, Joachim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The KArlsruhe TRItium Neutrino experiment (KATRIN) aims to measure the effective electron anti-neutrino mass with an unprecedented sensitivity of $0.2\,\mathrm{eV}/\mathrm{c}^2$, using $β$-electrons from tritium decay. The electrons are guided magnetically by a system of superconducting magnets through a vacuum beamline from the windowless gaseous tritium source through differential and cryogenic pumping sections to a high resolution spectrometer and a segmented silicon pin detector. At the same time tritium gas has to be prevented from entering the spectrometer. Therefore, the pumping sections have to reduce the tritium flow by more than 14 orders of magnitude. This paper describes the measurement of the reduction factor of the differential pumping section performed with high purity tritium gas during the first measurement campaigns of the KATRIN experiment. The reduction factor results are compared with previously performed simulations, as well as the stringent requirements of the KATRIN experiment.
description: 19 pages, 4 figures, submitted to Vacuum
Grossglockneria hyalina Foissner 1985
Creators: name: Durán-Ramírez, Carlos Alberto
name: Dias, Roberto Júnio Pedroso
name: Estrada, Rosaura Mayén-
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Colpodea
Grossglockneriida
Grossglockneriidae
Grossglockneria
Grossglockneria hyalina

description: Grossglockneria hyalina Foissner, 1985
Distribution. VENEZUELA: South margin of the Henri Pittier National Park, Biological Station Rancho Grande (Foissner 2016)
description: Published as part of Durán-Ramírez, Carlos Alberto, Dias, Roberto Júnio Pedroso & Estrada, Rosaura Mayén-, 2020, Checklist of ciliates (Alveolata: Ciliophora) that inhabit in bromeliads from the Neotropical Region, pp. 1-36 in Zootaxa 4895 (1) on page 24, DOI: 10.11646/zootaxa.4895.1.1, http://zenodo.org/record/4321437
Comparison between the Thomas-Fermi and Hartree-Fock-Bogoliubov Methods in the Inner Crust of a Neutron Star: The Role of Pairing Correlations
Creators: name: Shelley, Matthew
name: Pastore, Alessandro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigated the role of a pairing correlation in the chemical composition of the inner crust of a neutron star with the extended Thomas-Fermi method, using the Strutinsky integral correction. We compare our results with the fully self-consistent Hartree-Fock-Bogoliubov approach, showing that the resulting discrepancy, apart from the very low density region, is compatible with the typical accuracy we can achieve with standard mean-field methods.
description: 17 pages, 8 figures, published in Universe
Physical effects on compact high-velocity clouds in the circumgalactic medium
Creators: name: Sander, Bastian
name: Hensler, Gerhard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We numerically investigate the evolution of compact high-velocity clouds (CHVCs) passing through a hot, tenuous gas representing the highly-ionized circumgalactic medium (CGM) by applying the adaptive-mesh refinement code FLASH. The model clouds start from both hydrostatic and thermal equilibrium and are in pressure balance with the CGM. Here, we present 14 models, divided into two mass categories and two metallicities each and different velocities. We allow for self-gravity and thermal conduction or not. All models experience mass diffusion, radiative cooling, and external heating leading to dissociation and ionization. Our main findings are: 1) self-gravity stabilizes clouds against Rayleigh-Taylor instability which are disrupted within 10 sound-crossing times without; 2) clouds can develop Jeans-instable regions internally even though they are initially below Jeans mass; 3) all clouds lose mass by ram pressure and Kelvin-Helmholtz instability; 4) thermal conduction substantially lowers mass-loss rates, by this, extending the clouds' lifetimes, particularly, more than doubling the lifetime of low-mass clouds; 5) thermal conduction leads to continuous, filamentary stripping, while the removed gas is heated up quickly and mixes efficiently with the ambient CGM; 6) without thermal conduction the removed gas consists of dense, cool, clumpy fragments; 7) thermal conduction might prevent CHVCs from forming stars; 8) clouds decelerated by means of drag from the ambient CGM form head-tail shapes and collapse after they reach velocities characteristic for intermediate-velocity clouds. Conclusively, only sophisticated modelling of CHVCs as non-homogeneous and non-isothermal clouds with thermal conduction and self-gravity explains observed morphologies and naturally leads to the suppression of star formation.
description: 20 pages, 19 figures, accepted for publication in MNRAS
On a class of integrable Hamiltonian equations in 2+1 dimensions
Creators: name: Gormley, B.
name: Ferapontov, E. V.
name: Novikov, V. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 35Q51, 37K10

description: We classify integrable Hamiltonian equations in 3D with the Hamiltonian operator d/dx, where the Hamiltonian density h(u, w) is a function of two variables: dependent variable u and the non-locality w such that w_x=u_y. Based on the method of hydrodynamic reductions, the integrability conditions are derived (in the form of an involutive PDE system for the Hamiltonian density h). We show that the generic integrable density is expressed in terms of the Weierstrass elliptic functions. Dispersionless Lax pairs, commuting flows and dispersive deformations of the resulting equations are also discussed.
description: 23 pages
Mixed Dark Matter in Universal Extra Dimension Models with TeV Scale $W_{R}$ and $Z'$
Creators: name: Hsieh, Ken
name: Mohapatra, R. N.
name: Nasri, Salah
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that in a class of universal extra dimension (UED) models that solves both the neutrino mass and proton decay problems using low scale left-right symmetry, the dark matter of the Universe consists of an admixture of KK photon and KK right-handed neutrinos. We present a full calculation of the dark matter density in these models taking into account the co-annihilation effects due to near by states such as the scalar partner of the KK photon as well as fermion states near the right-handed KK neutrino. Using the value of the relic CDM density, we obtain upper limits on $R^{-1}$ of about 400-650 GeV and $M_{Z'}\leq 1.5$ TeV, both being accessible to LHC. For a region in this parameter space where the KK right-handed neutrino contributes significantly to the total relic density of dark matter, we obtain a lower bound on the dark matter-nucleon scattering cross section of $10^{-44}$ cm$^2$, which can be probed by the next round of dark matter search experiments.
description: 28 pages, 7 figures