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Kollhoff, A., et al., Context. On 2020 November 29, the first widespread solar energetic particle (SEP) event of solar cycle 25 was observed at four widely separated locations in the inner (≲ 1 AU) heliosphere. Relativistic electrons as well as protons with energies > 50 MeV were observed by Solar Orbiter (SolO), Parker Solar Probe, the Solar Terrestrial Relations Observatory (STEREO)-A and multiple near-Earth spacecraft. The SEP event was associated with an M4.4 class X-ray flare and accompanied by a coronal mass ejection and an extreme ultraviolet (EUV) wave as well as a type II radio burst and multiple type III radio bursts. Aims. We present multi-spacecraft particle observations and place them in context with source observations from remote sensing instruments and discuss how such observations may further our understanding of particle acceleration and transport in this widespread event. Methods. Velocity dispersion analysis (VDA) and time shift analysis (TSA) were used to infer the particle release times at the Sun. Solar wind plasma and magnetic field measurements were examined to identify structures that influence the properties of the energetic particles such as their intensity. Pitch angle distributions and first-order anisotropies were analyzed in order to characterize the particle propagation in the interplanetary medium. Results. We find that during the 2020 November 29 SEP event, particles spread over more than 230° in longitude close to 1 AU. The particle onset delays observed at the different spacecraft are larger as the flare-footpoint angle increases and are consistent with those from previous STEREO observations. Comparing the timing when the EUV wave intersects the estimated magnetic footpoints of each spacecraft with particle release times from TSA and VDA, we conclude that a simple scenario where the particle release is only determined by the EUV wave propagation is unlikely for this event. Observations of anisotropic particle distributions at SolO, Wind, and STEREO-A do not rule out that particles are injected over a wide longitudinal range close to the Sun. However, the low values of the first-order anisotropy observed by near-Earth spacecraft suggest that diffusive propagation processes are likely involved., The CAU Kiel team acknowledges support from the German Federal Ministry for Economic Affairs and Energy, the German Space Agency (Deutsches Zentrum für Luft- und Raumfahrt e.V., DLR) under grants 50OT0901, 50OT1202, 50OT1702, and 50OT2002. A.K. acknowledges financial support from the ANR COROSHOCK project (ANR-17-CE31-0006-01). D.L. acknowledges support from NASA-HGI grant NNX16AF73G and the NASA Program NNH17ZDA001N-LWS. This study has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 101004159 (SERPENTINE). The U. Turku team acknowledges funding by the Academy of Finland (Grant No. 336809). The UAH team acknowledges financial support by the Spanish Ministerio de Ciencia, Innovación y Universidades FEDER/MCIU/AEI Projects ESP2017-88436-R and PID2019-104863RB-I00/AEI/10.13039/501100011033. [...] The Swedish National Space Agency, ESA-PRODEX and all the participating institutes. I.G.R. acknowledges support from NASA programs NNH19ZDA001N-HSR and NNH19ZDA001N-LWS, and the STEREO mission. IRFU team acknowledges support from the Swedish National Space Agency grant 20/136. A.A. acknowledges the support of the Spanish Ministerio de Ciencia e Innovación (MICINN) under grant PID2019- 105510GB-C31 and through the ‘Center of Excellence María de Maeztu 2020-2023’ award to the ICCUB (CEX2019-000918- M). F.C. acknowledges the financial support by the Spanish MINECO-FPI-2016 predoctoral grant with FSE. E.A. would like to acknowledge the financial support by the Academy of Finland (Postdoctoral Grant No 322455). V.K. acknowledges the support by NASA under grants 18-2HSWO218_2-0010 and 19-HSR-19_2-0143. Solar Orbiter magnetometer operations are funded by the UK Space Agency (grant ST/T001062/1). T.S.H. is supported by STFC grant ST/S000364/1. T.L. and S.D. acknowledge support from the UK Science and Technology Facilities Council (STFC; grant ST/R000425/1).

Aims. We present observations of the first coronal mass ejection (CME) observed at the Solar Orbiter spacecraft on April 19, 2020, and the associated Forbush decrease (FD) measured by its High Energy Telescope (HET). This CME is a multispacecraft event also seen near Earth the next day. Methods. We highlight the capabilities of HET for observing small short-term variations of the galactic cosmic ray count rate using its single detector counters. The analytical ForbMod model is applied to the FD measurements to reproduce the Forbush decrease at both locations. Input parameters for the model are derived from both in situ and remote-sensing observations of the CME. Results. The very slow (~350 km/s) stealth CME caused a FD with an amplitude of 3 % in the low-energy cosmic ray measurements at HET and 2 % in a comparable channel of the Cosmic Ray Telescope for the Effects of Radiation (CRaTER) on the Lunar Reconnaissance Orbiter, as well as a 1 % decrease in neutron monitor measurements. Significant differences are observed in the expansion behavior of the CME at different locations, which may be related to influence of the following high speed solar wind stream. Under certain assumptions, ForbMod is able to reproduce the observed FDs in low-energy cosmic ray measurements from HET as well as CRaTER, but with the same input parameters, the results do not agree with the FD amplitudes at higher energies measured by neutron monitors on Earth. We study these discrepancies and provide possible explanations. Conclusions. This study highlights that the novel measurements of the Solar Orbiter can be coordinated with other spacecraft to improve our understanding of space weather in the inner heliosphere. Multi-spacecraft observations combined with data-based modeling are also essential to understand the propagation and evolution of CMEs as well as their space weather impacts., accepted for publication in Astronomy & Astrophysics

Context. The Solar Orbiter spacecraft cruised in the inner heliosphere during Feb. 2020 – Jan. 2021, moving between ∼0.5–1.0 au radial distance. The Energetic Particle Detector suite operated continuously during this period. Aims. The Suprathermal Ion Spectrograph and High Energy Telescope observations made during intervals in between transient intensity increases were used to determine the low energy ion spectra and composition during quiet times. Methods. Energetic particle spectra and major ion components, including 3He, were measured over the range ∼0.1–100 MeV nucleon−1. The radial dependence of 4.4 MeV nucleon−1 4He and O was measured. A short interval of extremely low intensities (“super-quiet”) was also studied. Results. Spectra measured during the quiet period showed transitions, including galactic cosmic rays (> 50 MeV nucleon−1), anomalous cosmic rays (a few to ∼50 MeV nucleon−1), and a steeply rising “turn-up” spectrum below a few MeV nucleon−1 whose composition resembled impulsive, 3He-rich solar energetic particle events. The radial dependence had large uncertainties but was consistent with a small gradient. During the super-quiet interval, the higher energy components remained similar to the quiet period, while the approximately flat low energy 4He spectrum extended downward, reaching ∼300 keV nucleon−1 before transitioning to a steeply rising spectrum.

To achieve breakthroughs in the areas of heliospheric and magnetospheric energetic neutral atom (ENA) imaging, a new class of instruments is required. We present a high angular resolution ENA imager concept aimed at the suprathermal plasma populations with energies between 0.5 and 20 keV. This instrument is intended for understanding the spatial and temporal structure of the heliospheric boundary recently revealed by Interstellar Boundary Explorer instrumentation and the Cassini Ion and Neutral Camera. The instrument is also well suited to characterize magnetospheric ENA emissions from low‐altitude ENA emissions produced by precipitation of magnetospheric ions into the terrestrial upper atmosphere, or from the magnetosheath where solar wind protons are neutralized by charge exchange, or from portions of the ring current region. We present a new technique utilizing ultrathin carbon foils, 2‐D collimation, and a novel electron optical design to produce high angular resolution (≤2°) and high‐sensitivity (≥10−3 cm2 sr/pixel) ENA imaging in the 0.5–20 keV energy range., Key Points The LENI instrument is capable of high angular resolution ENA imagingThe LENI instrument utilizes novel MCP collimation for ENA imagingThe LENI instrument is designed for heliospheric and magnetospheric imaging

Mathematics Technical Report

The Energetic Particle and Plasma Spectrometer (EPPS) package on the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) mission to Mercury is composed of two sensors, the Energetic Particle Spectrometer (EPS) and the Fast Imaging Plasma Spectrometer (FIPS). EPS measures the energy, angular, and compositional distributions of the high-energy components of the in situ electrons (>20 keV) and ions (>5 keV/nucleon), while FIPS measures the energy, angular, and compositional distributions of the low-energy components of the ion distributions (

The Wiradjuri General Practitioners and Aboriginal Health Workers Project aimed to help improve Aboriginal health in central western New South Wales (NSW) by identifying and overcoming the barriers to the Aboriginal population's access to general practitioner services. The central strategy of the project was to convene three rounds of consultative meetings in five towns: Bathurst, Orange, Cowra, Forbes and Condobolin. These meetings brought together Aboriginal community members, general practitioners and Aboriginal health workers to express and define local issues and problems, and to propose solutions. The solutions included general practitioner outreach clinics, a focus on prewinter immunisation, bulk-billing of Aboriginal patients, Aboriginal cultural awareness training for all general practice personnel, employing Aboriginal staff in general practice, and closer professional interaction between general practitioners and Aboriginal health workers. Most participants evaluated the meetings as positive and constructive. The project substantiates the perceived need for alternative models for the funding and delivery of general practitioner services to Aboriginal communities.

Detecting energetic particles is a useful approach in studying space plasmas. Of specific interest are energetic neutral atoms (ENA) because their trajectories are unaffected by electric or magnetic fields. Imaging the ENA flux allows for the mapping of remote plasmas. In order to detect such particles, solid-state detectors are advantageous due to their lightweight and low power. However in the sensing environment the photon flux is usually several orders of magnitude higher than the ENA flux. Thus, in order to detect the energetic particles the photon flux must be blocked. Therefore, thin metal or carbon film filters that allow the transmission of ENAs while attenuating the photon signal are used. Here we report tests of low-density mats of carbon nanotubes (CNTs) as a filter medium. For a given mass per unit area (the parameter which sets the particle transmission energy threshold), CNTs are expected to absorb photons significantly better than thin films. The CNTs were grown by a water assisted chemical vapor deposition technique and pulled from their substrate to generate a CNT sheet covering an aperture. In order to test the performance of the CNT sheet as a filter, the transmissions of light and alpha particles were measured. We were able to achieve filter performance that resulted in alpha particle energy loss of only 5 keV with an optical density of 0.5.

The MErcury, Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) mission will send the first spacecraft to orbit the planet Mercury. A miniaturized set of seven instruments, along with the spacecraft telecommunications system, provide the means of achieving the scientific objectives that motivate the mission. The payload includes a combined wide- and narrow-angle imaging system; γ-ray, neutron, and X-ray spectrometers for remote geochemical sensing; a vector magnetometer; a laser altimeter; a combined ultraviolet-visible and visible-infrared spectrometer to detect atmospheric species and map mineralogical absorption features; and an energetic particle and plasma spectrometer to characterize ionized species in the magnetosphere.

A major question about the adequacy of the future supply of nurses is how many will stay in the profession. The relationship between scheduling and propensity to stay or leave the nursing profession was examined in this study. This analysis suggests there are definite characteristics of the work schedules that can influence a nurse's inclination to stay or leave the profession. This is not simply a question of "overwork," but of matching work schedules and hours as closely as possible to employee expectations. This suggests management needs to find a way to pay attention when nurses request changes in hours. The mere fact of changing schedules will not solve the nursing shortage, but it is one action within the management control of any organization employing nurses that could have a positive effect on retention.

The Pluto Energetic Particle Spectrometer Science Investigation (PEPSSI) comprises the hardware and accompanying science investigation on the New Horizons spacecraft to measure pick-up ions from Pluto's outgassing atmosphere. To the extent that Pluto retains its characteristics similar to those of a "heavy comet" as detected in stellar occultations since the early 1980s, these measurements will characterize the neutral atmosphere of Pluto while providing a consistency check on the atmospheric escape rate at the encounter epoch with that deduced from the atmospheric structure at lower altitudes by the ALICE, REX, and SWAP experiments on New Horizons. In addition, PEPSSI will characterize any extended ionosphere and solar wind interaction while also characterizing the energetic particle environment of Pluto, Charon, and their associated system. First proposed for development for the Pluto Express mission in September 1993, what became the PEPSSI instrument went through a number of development stages to meet the requirements of such an instrument for a mission to Pluto while minimizing the required spacecraft resources. The PEPSSI instrument provides for measurements of ions (with compositional information) and electrons from 10s of keV to ~1 MeV in a 120 deg x 12 deg fan-shaped beam in six sectors for 1.5 kg and ~2.5 W., Comment: 107 pages, 38 figures, 29 tables; To appear in a special volume of Space Science Reviews on the New Horizons mission

Adequate yearly progress (AYP) on No Child Left Behind criteria was examined for a randomly selected sample of districts that qualify for the Rural Education Achievement Program (REAP). The sample involved 10% of districts that were eligible for the Small Rural Schools Achievement (SRSA) program and 10% that were eligible for the Rural and Low-income Schools (RLIS) program. Based on district reports, nearly 80% of SRSA schools made AYP, 11% failed, and 11% did not have adequate data. For schools in the RLIS program, districts reported that 65% made AYP, 29% failed, and 6% did not report adequate data. The SRSA and RLIS samples had different patterns for the categories of students that did not make AYP. Also, SRSA and RLIS districts were differentially distributed across the United States. Implications for interventions are discussed.

The study aimed to assess rates of illegal cigarette sales to children and the impact on these rates of publicity and a warning letter threatening prosecution. Children aged 12 and 13 made two repeat purchasing attempts, three months apart, at 255 randomly selected tobacco retail outlets in Sydney. A randomly selected 50 per cent of retail outlets which sold cigarettes illegally at the first attempt were sent warning letters threatening prosecution. Publicity about the undercover buying operation was organised between the attempts. At the first attempts, 39 per cent of shops sold cigarettes to the children and 32 per cent sold them at the second attempt. Shops which sold on the first occasion and received warning letters reduced selling by 69 per cent compared to the 40 per cent reduction in shops which sold cigarettes on the first attempt and were not sent warning letters, a net reduction of 29 per cent seemingly attributable to the warning letters (95 per cent confidence interval 8 per cent to 50 per cent). It is extremely easy for children as young as 12 to buy cigarettes. The combined effects of publicity about undercover buying operations and warning letters threatening prosecution seem capable of reducing selling by about 29 per cent. Because of inconsistencies in selling or refusals, future attempts to measure selling rates to children should use repeat purchasing attempts and classify outlets as 'selling', 'not selling' or 'sometimes selling'.

"This is a description of TPS, a theorem proving system for classical type theory (Church's typed [lambda]-calculus). TPS has been designed to be a general research tool for manipulating wffs of first- and higher-order logic, and searching for proofs of such wffs interactively or automatically, or in a combination of these modes. An important feature of TPS is the ability to translate between expansion proofs and natural deduction proofs. Examples of theorems which TPS can prove completely automatically are given to illustrate certain aspects of TPS's behavior and problems of theorem proving in higher-order logic."

not Available.

Measured currents at the steeply sloping north edge of Georges Bank show an unusually strong correlation between tidal and lower frequency components. The dominant current constituents are the rotary semidiurnal tides (amplitude ∼30 cm s−1, ellipticity 0.6) and the mean isobath-parallel flow to the northeast (ranging from zero to 40 cm s−1). At the middle water depth in the period range of 3–5 days, the along-isobath low-frequency current component is highly coherent (γ2>0.8) with the amplitude of the semidiurnal tidal current. The fact that variation of the tidal current amplitude occurs on time scales appropriate to wind-driven events suggests that the tidal structure must be significantly baroclinic, and this is supported by hydrographic data. The evidence thus suggests a local nonlinear interaction between tidal and low-frequency currents, with both the steep bottom topography and the density structure being important factors.

The mere appearance of all this work on the political economy of the world-system should tell us something. Capitalism has been analyzed as a relatively well-integrated social system with its own distinctive and internal dynamics, but the old insistence that it is integrated and internally governed at the national level is now being questioned. Its forms of organization are worldwide; it has organized the world. To comprehend this increasingly visible phenomenon, a "world-system perspective" is being developed outside the confines of the existing community of international relations scholars. This perspective aspires to offer a new way of conceptualizing capitalism. On this terrain Marxist theory has already established a secure beachhead, even if it is one that remains largely outside the perspective of conventional social science. The terrain is now being contested on the Left, as the analysis of development by dependency theory has been carried back into the origins of the European world-system and forward into the present. The issues raised deserve serious attention. This perspective does not form a single, rigorous theory. The literature

New interest in the domestic sources of foreign policy intersects the notion that arguments about a state's international role are, at one level, arguments about domestic meaning, prohibitions, and responsibility. Even claimed strategic imperatives are neither self-explanatory nor comprehensible only in view of the stringencies of the international arena. Instead, they project a domestic content, referring to (and often transparent in the light of) particular domestic ends, needs, images, or interests. A rule-guided conception of die relation between domestic society and foreign policy is developed, in an analogy widi language and forms of discourse, in which discernible social rules will constrain or constitute a state policy—delimiting conduct, or defining its domestic referents, usage, and social conformity or deviance. Looking beneath the rather disembodied plane of ends and means, explanation begins to resemble an excavation; the state is seen not through the lenses of national security and rational behavior, but in the model and role of a domestic social actor.

Yes, a "grotesque mediocrity" reigns within our generally depoliticized professional life. So why aren't the complacencies of the orthodox even more embarrassing? Why does the overall agenda of research and conceptualization still tilt-either reflectively or unreflectively-toward the reproduction of a deplorable status quo? Certainly we should play havoc with neorealist orthodoxy-and also with the flashy timidity of its self-appointed successors. But what is actually being articulated in the discipline? An unexpected obituary for the structuralists, the cocksure neorealists and aficionados of old-fashioned Realpolitik? Titillating revisionism for the respected ghosts of classical realism? Or merely corrective mechanisms in the self-reproduction of a certain kind of white-gloved theoretical discourse? There is another agenda to which even the most rarefied conceptualizing can bend its efforts. What makes a nation's attachment to its expansive global (or regional) position so obsessive? Why is a particular state leadership so anxious to flex its particular muscles in a particular way? Why does an imperial power consider its ability to exert control over the social relations that constitute an open world political economy so important? Why are a nation's commitments to the international status quo wrapped up so tightly in the flag, and sanctified accordingly? Do any of the analytical moves at hand, however trumpeted, help us comprehend the grounds on which the key acts of government foreign policy are erected, or the grounds on which they might be confronted or opposed? I am thinking, for example, of the brutal American intervention in Vietnam and, most immediately, the attempted subversion and violent harassment of Nicaragua. Those matters, those sorts of questions, are likely to ambush our little self-important academic scuffles. The "balance-of-power scheme" seems to have little to say about them.

“Language as a model! To rethink everything through once again in terms of linguistics! What is surprising, it would seem, is only that no one ever thought of doing so before ... (Jameson 1972, p. viii) “The deeper justification for the use of the linguistic model or metaphor ... lies in the concrete character of the social life of the so‐called advanced countries today, which offer the spectacle of a world from which nature as such has been eliminated, a world saturated with messages and information, whose intricate commodity network may be seen as the very prototype of a system of signs. There is therefore a profound consonance between linguistics as a method and that systematized and disembodied nightmare which is our culture today.” (Jameson 1972, p. ix)

A procedure is given for the design of propellers with large hubs. The hub is modelled by a line sink. A lifting-line propeller model with no hub far downstream is used for thrust, torque, and efficiency calculations. The circulation distribution from this wake propeller is moved up the hub streamlines to the propeller plane for the actual lifting-surface propeller blade design.

As part of the Western NSW Aboriginal Smoking Project (1995) a self-administered questionnaire surveyed regional Aboriginal health workers (AHWs) about their tobacco use and their awareness of smoking related health issues. The aim was to provide baseline information to guide the development of project interventions. The majority of respondents smoked. Among the smokers most said that they would like to quit smoking, and all said that they had tried to quit. All the smokers were interested in assistance to help them quit, and were interested in assistance to help them help others in their communities to quit. AHWs are a professional group whose smoking rates might typify that of their communities, and in the future they might provide indications of smoking trends in their communities.

Mathematics Technical Report

Mathematics Technical Report

Mathematics Technical Report

Mathematics Technical Report

Mathematics Technical Report