cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Small -x behavior of the non-singlet and singlet structure functions g_1
Creators: name: Ermolaev, B. I.
name: Greco, M.
name: Troyan, S. I.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Explicit expressions for the non-singlet and singlet structure functions g_1 at the small $x$-region are obtained. They include the total resummation of double-logarithmic contributions and accounting for the running QCD coupling effects. We predict that both the non-singlet and singlet g_1 asymptotically ~ x^{- Δ}, with the singlet intercept = 0.86 and being more than twice larger than the non-singlet intercept = 0.4. The impact of the initial quark and gluon densities on the sign of g_1 at x << 1 is discussed.
description: Talk given at Xth Workshop on high energy spin physics, Dubna, Russia, September,16-20, 2003. LateX 9pp, 4 figs
The strong contour line relationship between two-sided p values of simple RCT two sample t-tests and BIC based Bayes factor $P_{BIC}(D|H0)$ outputs for fixed sample sizes
Creators: name: Martin, John
Publisher: name: figshare
Year: 2020
Subjects: subject: 10401 Applied Statistics
subject: FOS: Mathematics

description: For simple Randomised Control Trial (RCT) analysis there is a strong non-linear relationship between the two-sided p values of two sample t-tests and the corresponding BIC based Bayes factor output $P_{BIC}(D|H0)$. In particular, the spearman rank correlation coefficient $cor_{spearman,RCT}(p_{value},P_{BIC}(D|H0)) \approx 1$ and a strong contour line relationship dependent on sample size exists between the two statistics that allows psuedo ROC curve interpretation and cutoff estimation. In practice, as $P(H0)$ varies $(0 \le P(H0) \le 1)$ the position of the distribution of observed data on a given sample size contour line varies according to the statistical power (ie. effect size) and $P(H0)$ probability. Proceeding to posterior odds calculations and derivation of $P_{BIC}(H0|D)$, $P_{BIC}(H1|D)$ probabilities, the above BIC based results have significant relevance under the common prior odds assumption $P(H0)/P(H1) \sim 1$
Skewness as a test of the equivalence principle
Creators: name: Amendola, Luca
name: Quercellini, Claudia
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The skewness of the large scale distribution of matter has long been known to be a probe of gravitational clustering. Here we show that the skewness is also a probe of violation of the equivalence principle between dark matter and baryons. The predicted level of violation can be tested with the forecoming data from the Sloan Digital Sky Survey.
description: 5 pages, accepted for publication in Phys. Rev. Lett
Far-infrared photo-conductivity of electrons in an array of nano-structured antidots
Creators: name: Bittkau, K.
name: Menk, Ch.
name: Heyn, Ch.
name: Heitmann, D.
name: Hu, C. -M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present far-infrared (FIR) photo-conductivity measurements for a two-dimensional electron gas in an array of nano-structured antidots. We detect, resistively and spectrally resolved, both the magnetoplasmon and the edge-magnetoplasmon modes. Temperature-dependent measurements demonstrates that both modes contribute to the photo resistance by heating the electron gas via resonant absorption of the FIR radiation. Influences of spin effect and phonon bands on the collective excitations in the antidot lattice are observed.
description: 5 pages, 3 figures
The relationship of three factors of acculturation to grade point average and degree goal in a sample of Hispanic college students
Creators: name: Weil, Rita Nancy
Publisher: name: American University
Year: 2023

description: Hispanics are the fastest growing minority group in the United States, and by the year 2000 will be the largest. Yet their educational attainment and retention in school is the lowest of all minority groups. This study sought to determine the relationship between the acculturation of Hispanic college students and their educational success. Specifically, the purpose of this study was to determine the relationship between each of three independent variables of acculturation, namely, language use, ethnic identification and loyalty, and generation to two dependent variables, grade point average and degree goal in a sample of Hispanic college students. Six hypotheses, each postulating a relationship between these two sets of variables, were tested. The instruments which were developed by the researcher to collect the data used in hypothesis testing were the Hispanic College Student Acculturation Inventory (HCSAI) and a Personal Data Form (PDF). Study subjects were 162 Hispanic college students from three universities and one community college in the metropolitan Washington, DC area. Analysis of the study data utilized the Pearson product-moment correlation and z-test as well as the analysis of variance and t-test. The criterion for statistical significance in the study was p $\le$.05. Results of hypothesis testing were that the relationship between any of the three factors of acculturation, language use, ethnic identification and loyalty, and generation to grade point average was not significant. However, the results of hypothesis testing did find a significant relationship between each of these three factors of acculturation and educational degree goal in the study sample. It was concluded that the level of acculturation of Hispanic college students does not seem to be a factor in their academic success (measured by grade point average), and that the level of acculturation of Hispanic college students is related to educational degree goals. Implications for the recruitment and retention of Hispanic college students and recommendations for further research are also discussed.
Learning efficient structured dictionary for image classification
Creators: name: Li, Zi-Qi
name: Sun, Jun
name: Wu, Xiao-Jun
name: Yin, He-Feng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Recent years have witnessed the success of dictionary learning (DL) based approaches in the domain of pattern classification. In this paper, we present an efficient structured dictionary learning (ESDL) method which takes both the diversity and label information of training samples into account. Specifically, ESDL introduces alternative training samples into the process of dictionary learning. To increase the discriminative capability of representation coefficients for classification, an ideal regularization term is incorporated into the objective function of ESDL. Moreover, in contrast with conventional DL approaches which impose computationally expensive L1-norm constraint on the coefficient matrix, ESDL employs L2-norm regularization term. Experimental results on benchmark databases (including four face databases and one scene dataset) demonstrate that ESDL outperforms previous DL approaches. More importantly, ESDL can be applied in a wide range of pattern classification tasks.
description: Journal of Electronic Imaging (major revision)
Is it possible to obtain polarized positrons during multiple Compton backscattering process?
Creators: name: Potylitsyn, A. P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: If a beam of unpolarized positrons (which is considered as a sum of two fractions with opposite helicities) passes through an intense circular polarized laser radiation these fractions may be separated. For high laser flash intensity each positron will interact with $k_0\gg$1 laser photons subsequently (linear multiple compton scattering process). Due to difference in the compton cross-section for positrons polarized in opposite directions the mean final energy of each fraction will be different. It allows to get a polarized positron beam using the momentum selection (with some intensity loss). Estimations show the possibility to obtain a positron beam with 35% longitudinal polarization and 25% intensity from the initial one for focussed laser flash with total energy 5J and positron beam with energy 5 GeV.
description: 9 pages, 3 figures. Presented at 28th ICFA Workshop "Quantum Aspects of Beam Physics", January 7-11, Hiroshima, Japan
Measuring trends in online hate speech victimisation and exposure, and attitudes in New Zealand
Creators: name: Pacheco, Edgar
name: Melhuish, Neil
Publisher: name: figshare
Year: 2020
Subjects: subject: 80602 Computer-Human Interaction
subject: FOS: Psychology

description: Government agencies in New Zealand are not required to systematically collect data on online hate speech, thus, there is a lack of longitudinal evidence regarding this phenomenon. This report presents trends in personal experiences of and exposure to online hate speech among adult New Zealanders based on nationally representative data. The findings from this study are also compared with results from a similar research study conducted in 2018. In addition, this report explores people’s perceptions about other issues related to hate speech. The goal of this study is to fill some knowledge gaps regarding the extent and nature of hate speech in New Zealand. It also seeks to provide reliable and robust evidence to inform public conversation on the topic and the implementation of strategies and activities to ensure all New Zealanders, no matter what their characteristics, are safe online to benefit from the multiple opportunities of the digital environment.
Subthreshold oscillations in a map-based neuron model
Creators: name: Shilnikov, Andrey L.
name: Rulkov, Nikolai F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Cell Behavior (q-bio.CB)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Self-sustained subthreshold oscillations in a discrete-time model of neuronal behavior are considered. We discuss bifurcation scenarios explaining the birth of these oscillations and their transformation into tonic spikes. Specific features of these transitions caused by the discrete-time dynamics of the model and the influence of external noise are discussed.
description: To be published in Physics Letters A
Exploring New Zealand children’s internet access, skills and opportunities. Evidence from Ngā taiohi matihiko o Aotearoa - New Zealand Kids Online
Creators: name: Pacheco, Edgar
name: Melhuish, Neil
Publisher: name: figshare
Year: 2020
Subjects: subject: 80602 Computer-Human Interaction
subject: FOS: Psychology

description: While children’s interaction with digital technologies is a matter of interest around the world, evidence based on nationally representative data about how integrated these tools are in children’s everyday life is still limited in New Zealand. This research report presents findings from a study that explores children’s internet access, online skills, practices, and opportunities. This report is part of Netsafe’s research project Ngā taiohi matihiko o Aotearoa - New Zealand Kids Online, and our first publication as a member of Global Kids Online. Generating insightful, reliable evidence about New Zealand children’s online experiences is vital to develop adequate support that reflects children’s experiences and needs. This, in turn, will help them to manage online risks and potential harm from behaviours such as cyberbullying, harassment, and other forms of abuse and intimidation.
Quantum Search Algorithm with more Reliable Behaviour using Partial Diffusion
Creators: name: Younes, Ahmed
name: Rowe, Jon
name: Miller, Julian
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we will use a quantum operator which performs the inversion about the mean operation only on a subspace of the system ({\it Partial Diffusion Operator}) to propose a quantum search algorithm runs in $O(\sqrt N/M})$ for searching unstructured list of size $N$ with $M$ matches such that, $1\le M \le N$. We will show that the performance of the algorithm is more reliable than known quantum search algorithms especially for multiple matches within the search space. A performance comparison with Grover's algorithm will be provided.
description: 27 pages, 9 figures
Andrena (Melandrena) cerasifolii Cockerell 1905
Creators: name: Pedro, Diego De
name: Ceccarelli, Fadia Sara
name: Sagot, Philippe
name: López-Reyes, Eulogio
name: Mullins, Jessica L.
name: Mérida-Rivas, Jorge A.
name: Falcon-Brindis, Armando
name: Griswold, Terry
name: Ascher, John S.
name: Gardner, Joel
name: Ayala, Ricardo
name: Vides-Borrell, Eric
name: Vandame, Rémy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Andrenidae
Andrena
Andrena cerasifolii

description: Andrena (Melandrena s.l.) cerasifolii Cockerell, 1905
[Holotype: USNM (3398); ♂ Mr. Boyle’s garden, Santa Fé, Nuevo Mexico, US; July 4, 1895]
Andrena cerasifolii is one of the most abundant Andrena species in the BCP. LaBerge (1986) reported this species in the Coastal Sage Matorral, Succulent Coastal Matorral, and Baja California Mountains in BC. We examined one female from the Lower Colorado Desert in March 2005 (MABC). Additionally, the BBPT collected four specimens in the Succulent Coastal Matorral in January 2020 and one male in the Coastal Sage Matorral in May 2022 (2 ♀ MABC; 2 ♀ ECOAB). See fig. 13.
description: Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 58, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
The relationship of three factors of acculturation to grade point average and degree goal in a sample of Hispanic college students
Creators: name: Weil, Rita Nancy
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3903
subject: Education systems
classificationCode: 3904
subject: Specialist studies in education

description: Hispanics are the fastest growing minority group in the United States, and by the year 2000 will be the largest. Yet their educational attainment and retention in school is the lowest of all minority groups. This study sought to determine the relationship between the acculturation of Hispanic college students and their educational success. Specifically, the purpose of this study was to determine the relationship between each of three independent variables of acculturation, namely, language use, ethnic identification and loyalty, and generation to two dependent variables, grade point average and degree goal in a sample of Hispanic college students. Six hypotheses, each postulating a relationship between these two sets of variables, were tested. The instruments which were developed by the researcher to collect the data used in hypothesis testing were the Hispanic College Student Acculturation Inventory (HCSAI) and a Personal Data Form (PDF). Study subjects were 162 Hispanic college students from three universities and one community college in the metropolitan Washington, DC area. Analysis of the study data utilized the Pearson product-moment correlation and z-test as well as the analysis of variance and t-test. The criterion for statistical significance in the study was p $\le$.05. Results of hypothesis testing were that the relationship between any of the three factors of acculturation, language use, ethnic identification and loyalty, and generation to grade point average was not significant. However, the results of hypothesis testing did find a significant relationship between each of these three factors of acculturation and educational degree goal in the study sample. It was concluded that the level of acculturation of Hispanic college students does not seem to be a factor in their academic success (measured by grade point average), and that the level of acculturation of Hispanic college students is related to educational degree goals. Implications for the recruitment and retention of Hispanic college students and recommendations for further research are also discussed.
Hylaeus (Hylaeus) funereus
Creators: name: Özbek, Hikmet
name: Dathe, Holger H.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Colletidae
Hylaeus
Hylaeus funereus

description: Hylaeus (Hylaeus) funereus (WARNCKE, 1992)
Fig. 4
 Prosopis (Nesoprosopis) funerea WARNCKE, 1992: 785–786, .
Turkey: Hakkâri.
 Hylaeus (Hylaeus) funereus (WARNCKE, 1992) – ITIS (2020).
 Remarks: A small, dainty species, reminiscent of H. trifidus in the shape of the mask: the tip of the lateral marks is at the level of the antenna bases; in the upper part they are separated from the compound eye margin by an impressed shiny surface. In H. trifidus this surface is oval and clearly defined, in H. funereus there is a blurred furrow extended upward along the orbits. The apical process of sternum 8 is conoid with lateral bristles, in H. trifidus with expanded lobus with V-shaped notch; in this structure H. funereus resembles more H. sidensis. The propodeum is rounded and without ringlets.
 H. funereus was described from Hakkâri and Adıyaman (1200–2500 m). Unfortunately no additional material has been collected since then. The available data show that H. funereus is restricted to the south-eastern part of the country. It is rarely recorded from Turkey (2 provinces, Fig. 17. VII).
 Distribution: Turkey: Hakkâri, Adıyaman.
description: Published as part of Özbek, Hikmet & Dathe, Holger H., 2020, The bees of the genus Hylaeus FABRICIUS, 1793 of Turkey, with keys to the subgenera and species (Hymenoptera: Anthophila, Colletidae), pp. 273-346 in Beiträge Zur Entomologie = Contributions to Entomology 70 (2) on page 304, DOI: 10.21248/contrib.entomol.70.2.273-346, http://zenodo.org/record/5742898
Two-body relaxation in modified Newtonian dynamics
Creators: name: Ciotti, L.
name: Binney, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A naive extension to MOND of the standard computation of the two-body relaxation time Tb implies that Tb is comparable to the crossing time regardless of the number N of stars in the system. This computation is questionable in view of the non-linearity of MOND's field equation. A non-standard approach to the calculation of Tb is developed that can be extended to MOND whenever discreteness noise generates force fluctuations that are small compared to the mean-field force. It is shown that this approach yields standard Newtonian results for systems in which the mean density profile is either plane-parallel or spherical. In the plane-parallel case we find that in the deep-MOND regime Tbb scales with N as in the Newtonian case, but is shorter by the square of the factor by which MOND enhances the gravitational force over its Newtonian value for the same system. Application of these results to dwarf galaxies and groups and clusters of galaxies reveals that in MOND luminosity segregation should be far advanced in groups and clusters of galaxies, two body relaxation should have substantially modified the density profiles of galaxy groups, while objects with masses in excess of ~10M_sun should have spiralled to the centres of dwarf galaxies.(Abridged)
description: 8 pages, accepted by MNRAS
Melonic dominance and the largest eigenvalue of a large random tensor
Creators: name: Evnin, Oleg
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Probability (math.PR)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider a Gaussian rotationally invariant ensemble of random real totally symmetric tensors with independent normally distributed entries, and estimate the largest eigenvalue of a typical tensor in this ensemble by examining the rate of growth of a random initial vector under successive applications of a nonlinear map defined by the random tensor. In the limit of a large number of dimensions, we observe that a simple form of melonic dominance holds, and the quantity we study is effectively determined by a single Feynman diagram arising from the Gaussian average over the tensor components. This computation suggests that the largest tensor eigenvalue in our ensemble in the limit of a large number of dimensions is proportional to the square root of the number of dimensions, as it is for random real symmetric matrices.
description: v2: comments and references added, accepted for publication
China's Korea policy: Change and continuity
Creators: name: Yi, Xiaoxiong
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4408
subject: Political science
subject: FOS: Political science

description: This study fills a serious gap that exists in the literature on China's foreign policy--China's policy toward the two Koreas. It provides a detailed description of China's policy toward Korea in the twentieth century by focusing in each period on the objectives of China's policy, the means by which the objectives were pursued, and the most significant factors influencing the policy. Considerable attention is given to the late 1970s and 1980s, during which time the policy underwent a dramatic shift as China began to establish normal relations with South Korea. The major finding of the study is that two linkages have been most salient in shaping China's policy toward Korea, and appear to explain the simultaneous persistence of change and continuity, which characterizes China's foreign policy. The first linkage is between the changes in China's South Korea policy and China's domestic economic situation and external strategic environment. The second linkage is between the continuity in China's North Korea policy, and cultural and ideological factors that guide Beijing's decisions. This study indicates that both continuity and change are prominent patterns of China's Korea policy. The decision of the Chinese leadership in the early 1980s to deal with its major economic and security concerns by articulating a new "two Koreas" policy marks a qualitative as well as quantitative change in China's foreign policy behavior. At the same time, China's efforts to maintain good relations with North Korea results from the historical, cultural, and ideological affinities that have long been present between these two countries. From a Chinese perspective, the world is always divided into a dichotomy between "us" and "them," and North Korea is still one of "us" to the leaders of China.
China's Korea policy: Change and continuity
Creators: name: Yi, Xiaoxiong
Publisher: name: American University
Year: 2023

description: This study fills a serious gap that exists in the literature on China's foreign policy--China's policy toward the two Koreas. It provides a detailed description of China's policy toward Korea in the twentieth century by focusing in each period on the objectives of China's policy, the means by which the objectives were pursued, and the most significant factors influencing the policy. Considerable attention is given to the late 1970s and 1980s, during which time the policy underwent a dramatic shift as China began to establish normal relations with South Korea. The major finding of the study is that two linkages have been most salient in shaping China's policy toward Korea, and appear to explain the simultaneous persistence of change and continuity, which characterizes China's foreign policy. The first linkage is between the changes in China's South Korea policy and China's domestic economic situation and external strategic environment. The second linkage is between the continuity in China's North Korea policy, and cultural and ideological factors that guide Beijing's decisions. This study indicates that both continuity and change are prominent patterns of China's Korea policy. The decision of the Chinese leadership in the early 1980s to deal with its major economic and security concerns by articulating a new "two Koreas" policy marks a qualitative as well as quantitative change in China's foreign policy behavior. At the same time, China's efforts to maintain good relations with North Korea results from the historical, cultural, and ideological affinities that have long been present between these two countries. From a Chinese perspective, the world is always divided into a dichotomy between "us" and "them," and North Korea is still one of "us" to the leaders of China.
Selective processing of threat cues in subjects with panic disorder: The effect of awareness and specificity of threat cues
Creators: name: Demarco, Diane M.
Publisher: name: American University
Year: 2023

description: A Stroop color-naming task was used to deliver supraliminal and subliminal stimuli to normal subjects and subjects with panic disorder. In both conditions, subjects color-named panic threat stimuli and social phobia stimuli as well as neutral control words. They also performed the original Stroop task of color-naming color words in both conditions. In supraliminal trials, both groups showed greater Stroop interference to panic threat cues compared to neutral control words, although, unlike much other research in this area, subjects with panic disorder did not show a greater magnitude of Stroop interference to panic threat cues than did normal subjects. Neither group differentially responded to social phobia threat cues compared to their neutral control words. In subliminal trials, there was no evidence of the selective processing of threat cues. No differences were observed in either group for panic threat or social phobia threat cues compared to their neutral control words. A lexical decision task was used both as a manipulation check, and as a means to test whether the valence of a stimulus could be detected when delivered outside of awareness. Though the manipulation proved effective, the valence of cues was not detected in this procedure. The strength of this study lies in its many procedural checks and controls. Methodological improvements include manipulation checks, matching on variables which might affect outcome, checks on the appropriateness of the stimuli, and a carefully controlled stimulus presentation. Critical analysis of other research is outlined. Failure to replicate findings reported by other investigators is discussed in light of cognitive theories of psychopathology. These results, taken together with other findings, suggest that the attentional bias for processing threatening information assumed to be associated with panic disorder needs further exploration.
title: An exploratory study of factors associated with therapists offering 26 or more sessions of therapy
Creators: name: Küchemann, Christine
Publisher: name: The Open University
Year: 2003

description: Longer therapies can have a major impact on services by lengthening waiting lists. This exploratory study of one National Health Service (NHS) adult mental health psychology department aims to understand why therapists gave longer therapies to a few of their patients. There is a paucity of research on this topic in the literature. A longer therapy was defined as one of 26 or more sessions since some research has shown that at around this number the rate of improvement levels off. A qualitative research methodology using grounded theory was employed to analyse data obtained from interviewing nine psychologists. The main findings comprised two related themes: the stages that therapy goes through, during which it becomes extended; and balancing competing demands while carrying out the therapy. These conflicts may be coped with in different ways, but they often result in the therapist finding it difficult to stop therapy, even when they review frequently. The therapist may then ask a colleague for advice to help them stop. The therapist may keep their feelings, and behaviour secret, which may make it difficult for them to maintain their self-esteem. The conflicts may remain unresolved. The methodology and findings are discussed critically. Recommendations are made, from the findings and using ideas from the literature, to help the members of the department (and other therapists) stop therapy sooner, and to become more open about the length of the therapies they give.
Selective processing of threat cues in subjects with panic disorder: The effect of awareness and specificity of threat cues
Creators: name: Demarco, Diane M.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology
classificationCode: 5203
subject: Clinical and health psychology

description: A Stroop color-naming task was used to deliver supraliminal and subliminal stimuli to normal subjects and subjects with panic disorder. In both conditions, subjects color-named panic threat stimuli and social phobia stimuli as well as neutral control words. They also performed the original Stroop task of color-naming color words in both conditions. In supraliminal trials, both groups showed greater Stroop interference to panic threat cues compared to neutral control words, although, unlike much other research in this area, subjects with panic disorder did not show a greater magnitude of Stroop interference to panic threat cues than did normal subjects. Neither group differentially responded to social phobia threat cues compared to their neutral control words. In subliminal trials, there was no evidence of the selective processing of threat cues. No differences were observed in either group for panic threat or social phobia threat cues compared to their neutral control words. A lexical decision task was used both as a manipulation check, and as a means to test whether the valence of a stimulus could be detected when delivered outside of awareness. Though the manipulation proved effective, the valence of cues was not detected in this procedure. The strength of this study lies in its many procedural checks and controls. Methodological improvements include manipulation checks, matching on variables which might affect outcome, checks on the appropriateness of the stimuli, and a carefully controlled stimulus presentation. Critical analysis of other research is outlined. Failure to replicate findings reported by other investigators is discussed in light of cognitive theories of psychopathology. These results, taken together with other findings, suggest that the attentional bias for processing threatening information assumed to be associated with panic disorder needs further exploration.
Generalized Maxwell equations for exterior-algebra multivectors in $(k,n)$ space-time dimensions
Creators: name: Colombaro, Ivano
name: Font-Segura, Josep
name: Martinez, Alfonso
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: This paper presents an exterior-algebra generalization of electromagnetic fields and source currents as multivectors of grades $r$ and $r-1$ respectively in a flat space-time with $n$ space and $k$ time dimensions. Formulas for the Maxwell equations and the Lorentz force for arbitrary values of $r$, $n$, and $k$ are postulated in terms of interior and exterior derivatives, in a form that closely resembles their vector-calculus analogues. These formulas lead to solutions in terms of potentials of grade $r-1$, and to conservation laws in terms of a stress-energy-momentum tensor of rank 2 for any values of $r$, $n$, and $k$, for which a simple explicit formula is given. As an application, an expression for the flux of the stress-energy-momentum tensor across an $(n+k-1)$-dimensional slice of space-time is given in terms of the Fourier transform of the potentials. The abstraction of Maxwell equations with exterior calculus combines the simplicity and intuitiveness of vector calculus, as the formulas admit explicit expressions, with the power of tensors and differential forms, as the formulas can be given for any values of $r$, $n$, and $k$.
description: 26 pages, 2 figures. In this paper, with respect to the published version, Eq. (35) has been corrected with a different sign of a term. The procedure followed in Appendix 1.2 is not fully correct, despite the result is. The correct procedure is presented in Sect. 3.6 of Eur. Phys. J. Plus 136, 212 (2021), (arXiv:2104.07013)
Digital self-harm: Prevalence, motivations and outcomes for teens who cyberbully themselves
Creators: name: Pacheco, Edgar
name: Melhuish, Neil
Publisher: name: figshare
Year: 2020
Subjects: subject: 80602 Computer-Human Interaction
subject: FOS: Psychology

description: This research report presents findings about the extent and nature of digital self-harm among New Zealand teens. Digital self-harm is broadly defined here as the anonymous online posting or sharing of mean or negative online content about oneself. The report centres on the prevalence of digital self-harm (or self-cyberbullying) among New Zealand teens (aged 13-17), the motivations, and outcomes related to engaging in this behaviour. The findings described in this report are representative of the teenage population of New Zealand by gender, ethnicity and age. Key findings are: Overall, 6% of New Zealand teens have anonymously posted mean or negative content online about themselves in the past year. Teenagers’ top reasons for this behaviour were: making a joke, wanting to show resilience, looking for friends’ sympathy, and seeking reassurance of friendship. By exploring the nature and extent of this behaviour, we are providing the online safety community, schools and parents with insights about a complex and, to some extent, hidden phenomenon involving New Zealand teens.
Searching for Galactic Micro-FRB with Lunar Scattering
Creators: name: Katz, J. I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Does the Galaxy contain sources of micro-FRB, lower energy events resembling the known FRB but detectable only at Galactic distances? The answer to this question is essential to determining the nature of FRB sources. At typical ($10$ kpc) Galactic distances a burst would be about 117 dB brighter than at a "cosmological" ($z = 1$) distance. The radiation of Galactic micro-FRB, if they exist, could be detected after Lunar reflection, or an upper bound on their rate set, by a modest (20 m at 1.4 GHz) radio telescope staring at the Moon. It would have all-sky sensitivity. The delay between detection of direct (by STARE2 or dipoles) and Lunar-scattered radiation would restrict a burst's position to a narrow arc.
description: 5 pp., 2 figs
Andrena (Melandrena) cryptanthae Timberlake 1951
Creators: name: Pedro, Diego De
name: Ceccarelli, Fadia Sara
name: Sagot, Philippe
name: López-Reyes, Eulogio
name: Mullins, Jessica L.
name: Mérida-Rivas, Jorge A.
name: Falcon-Brindis, Armando
name: Griswold, Terry
name: Ascher, John S.
name: Gardner, Joel
name: Ayala, Ricardo
name: Vides-Borrell, Eric
name: Vandame, Rémy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Andrenidae
Andrena
Andrena cryptanthae

description: Andrena (Melandrena) cryptanthae Timberlake, 1951
[Holotype: USNM; ♀ San Bernardino Co., California, US]
Andrena cryptanthae is named for the plant for which it specializes on the pollen from, Cryptantha Lehm. ex. G.Don. (Thorp 1987). This species has been historically collected in the Coastal Sage Matorral and in the Baja California Mountains at Sierra San Pedro Mártir, BC (LaBerge 1986). The BBPT collected five females and two males in Chaparral habitat at Rancho La Concepción in Sierra San Pedro Mártir in April 2023 (MABC). See fig. 13.
description: Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 58, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
High-resolution velocity measurements on fully identified light nuclides produced in 56Fe + hydrogen and 56Fe + titanium systems
Creators: name: Napolitani, P.
name: Schmidt, K. -H.
name: Botvina, A. S.
name: Rejmund, F.
name: Tassan-Got, L.
name: Villagrasa, C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: New experimental results on the kinematics and the residue production are obtained for the interactions of 56Fe projectiles with protons and (nat)Ti target nuclei, respectively, at theincident energy of 1 A GeV. The titanium-induced reaction serves as a reference case for multifragmentation. Already in the proton-induced reaction, the characteristics of the isotopic cross sections and the shapes of the velocity spectra of light residues indicate that high thermal energy is deposited in the system during the collision. In the 56Fe+p system the high excitation seems to favour the onset of fast break-up decays dominated by very asymmetric partitions of the disassembling system. This configuration leads to the simultaneous formation of one or more light fragments together with one heavy residue.
description: 24 pages, 21 figures, 1 table, this work forms part of the PhD thesis of P.Napolitani, background information on http://www-w2k.gsi.de/kschmidt/
Towards Crossing the Reality Gap with Evolved Plastic Neurocontrollers
Creators: name: Qiu, Huanneng
name: Garratt, Matthew
name: Howard, David
name: Anavatti, Sreenatha
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: A critical issue in evolutionary robotics is the transfer of controllers learned in simulation to reality. This is especially the case for small Unmanned Aerial Vehicles (UAVs), as the platforms are highly dynamic and susceptible to breakage. Previous approaches often require simulation models with a high level of accuracy, otherwise significant errors may arise when the well-designed controller is being deployed onto the targeted platform. Here we try to overcome the transfer problem from a different perspective, by designing a spiking neurocontroller which uses synaptic plasticity to cross the reality gap via online adaptation. Through a set of experiments we show that the evolved plastic spiking controller can maintain its functionality by self-adapting to model changes that take place after evolutionary training, and consequently exhibit better performance than its non-plastic counterpart.
description: GECCO2020
title: The Generation and Evaluation of a Scale to Measure Racial Identity Attitudes in a Clinical and Non-Clinical Black British Population
Creators: name: Joseph, Dionne Pamela
Publisher: name: The Open University
Year: 1998

description: Previous research has hypothesised a five-stage cognitive developmental process of racial attitude identity development amongst African-Americans (called Nigresence). Using this framework, the current study attempted to develop a pilot device (the RIAS-B (UK), to investigate and measure Nigresence in Britons of African and African-Caribbean origin. One hundred and three people were accessed, 82 non-Clinical and 21 Clinical. It was hypothesised that individuals in the non-Clinical group would display more mature racial identity attitudes than individuals in the Clinical group. Using the Rosenberg Self-esteem Scale and the Internality, Powerful Others and Chance Scale, it was also hypothesised that: (a) more mature racial attitude identity development in the non-Clinical group would be reflected in higher levels of Self-esteem and greater internal Locus of Control; and (b) less mature racial attitude identity development in the Clinical group would be reflected in lower Self-esteem and greater external Locus of Control. Results showed no firm relationship between racial identity development. Self-esteem and Locus of Control in either group. Hypotheses were therefore not accepted. However, on the basis of a Principal Components Factor Analysis of responses to the RIAS-B (UK), a two-stage developmental model of racial attitude identity development is proposed These stages appear to reflect conflict about respondents' ability to develop an identity which was both Black and British. Results of the current study thus suggest that employing a cognitive-developmental model may a be fruitful way of understanding racial identity attitude development (Nigresence) amongst Black Britons. However, it is also proposed that Services may need to modify both the conceptualisation and practice of therapy, to account for this.
The occurrence of suicidal ideation over the course of HIV infection in gay men: A cross-sectional study
Creators: name: Hendricks, Michael Lawrence
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology
classificationCode: 5203
subject: Clinical and health psychology
classificationCode: 5205
subject: Social and personality psychology

description: Previous research has demonstrated an elevation in emotional distress and suicidality in persons infected with HIV. However, no study had previously reported having systematically analyzed the modulation of suicidal ideation or the qualitative changes associated with ideation which likely occur with the progression of HIV illness. This study utilized a controlled, cross-sectional model and self-report questionnaire instruments to assess the level of suicidal ideation and factors related to ideation, as well as depression, hopelessness, social support, and disease-related health factors in gay men at different points of HIV illness progression. As expected, the seropositive group evidenced significantly greater levels of suicidal ideation, depression, and hopelessness than the seronegative controls. Among the disease-related factors, only time since diagnosis of seropositivity predicted level of suicidal ideation: ideation increased linearly with the passage of time, suggesting that suicidality is mediated by psychological processes. A discriminant analysis revealed that time since diagnosis correctly distinguished ideators from nonideators only 61.2% of the time. This function lacks the accuracy necessary to be useful as a diagnostic tool, but suggests the importance of assessing this factor. Seropositive ideators who had survived HIV for more than five years, compared to those who had been diagnosed within two years, reported a higher incidence of persons in their environment who would lend at least emotional support for committing suicide, and among reasons for not committing suicide rated fear of social disapproval and moral objections as less important. These two groups were not significantly different on other measures, suggesting that the long-term survivors had sought out support for their suicidal intentions and disposed of reasons which might prevent them from enacting them. Finally, significant interactions were found between time since diagnosis and presence or absence of suicidal ideation on the factors of support network size, helpers for suicide, and fear of suicide and moral objections as suicide deterrents. These results suggest that long-term HIV survivors develop support networks that are more similar in size but different in composition than those newly diagnosed, and that they tend to dispose of reasons that would prevent them from acting on suicidal thoughts.
Impossible measurements require impossible apparatus
Creators: name: Bostelmann, Henning
name: Fewster, Christopher J.
name: Ruep, Maximilian H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A well-recognised open conceptual problem in relativistic quantum field theory concerns the relation between measurement and causality. Naive generalisations of quantum measurement rules can allow for superluminal signalling ('impossible measurements'). This raises the problem of delineating physically allowed quantum measurements and operations. We analyse this issue in a recently proposed framework in which local measurements (in possibly curved spacetime) are described physically by coupling the system to a probe. We show that the state-update rule in this setting is consistent with causality provided that the coupling between the system and probe is local. Thus, by establishing a well-defined framework for successive measurements, we also provide a class of physically allowed operations. Conversely, impossible measurements can only be performed using impossible (non-local) apparatus.
description: 13pp. v2: font issue fixed, minor textual changes, reference added. v3: Expanded and revised version, including a detailed account of measurements by multiple observers. v4: updated to reflect the published version