92 research outputs found

    Beyond mere deterrence: rethinking criminal justice policies for North Queensland

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    The role that Townsville plays in the process of developing and implementing criminal justice policies for other regional centres throughout Queensland (and regional Australia generally) cannot be discounted, notwithstanding its relatively small population or even its 'outer regional Australian' status. In fact, Townsville has recently become a crucible for some of the most cutting-edge and substantive developments in criminal justice policy-making in the state. What is particularly noteworthy is that despite the 'popular punitivism' that seems to have dominated this discourse in the political and media spheres, many, if not all, of the policies have eschewed an exclusively deterrent response to crime. This paper will attempt to explain: (l) why criminal justice policy makers should not limit themselves simply to formulating determent measures; (2) why Townsville has, in recent years (2016-18), been such a significant site in relation to developing and implementing municipal and regional criminal justice policies; and (3) what direction the Queensland criminal justice system should take in the foreseeable future

    Conflict-free routing of multi-stop warehouse trucks

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    The recent interest in greater vehicular autonomy for factory and warehouse automation has stimulated research in conflict-free routing: a challenging network routing problem in which vehicles may not pass each other. Motivated by a real-world case study, we consider one such application: truck movements in a tightly constrained warehouse. We propose an extension of an existing conflict-free routing algorithm to consider multiple stopping points per route. A high level metaheuristic is applied to determine the route construction and assignment of vehicles to routes

    Hazai szőlőültetvények virológiai vizsgálata = Study of the virus infection of the Hungarian vineyards

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    Új csoportosításra kerültek a Magyarországon eddig leírt szőlővírus kórokozók. 1) vírusos leromlása 2) levélsodródás 3) látens foltosság 4) faszöveti barázdáltság 5) szőlő vonalas és gyűrűs mintázottsága 6) szőlő vonalas mintázottsága 7) vírusszerű megbetegedések. Szerológiai felmérések során a 277 mintából 76 minta volt pozitív. A Nepovírusok közül a korábbi előforduláshoz képest alacsonyabb arányban 4 előfordulását igazoltuk GFLV, ArMV, TBRV, GCMV. A GLRaV-1, -2 -3 aránya hasonló volt a Nepovírusokéhoz. Jelentős GFKV fertőzöttséget állapítottunk meg. 15 Komplex fertőzést találtunk. 4 GLRaV-3 és 1 GLRaV-1 izolátum HSP70 szakaszát vizsgáltuk molekuláris módszerekkel. A 3.5., 4.2 és a 2.2. jelű izolátumok a 2. számú GLRaV 3 csoportba sorolhatók. Az 1.4 jelzésű a dendrogram adatai alapján a 4. számú csoportba tartozik. A GLRaV-1 izolátum az „E” csoportba tartozik. A vizsgált izolátumok génbaki azonosítói (HE794021, HE794022, HE794023, HE794024, HE794025). A szőlő ültetvényben gyűjtött Aristolochia clematitis levélminták esetében az elvégzett elektronmikroszkópos és molekuláris vizsgálatok eredményeképpen a TSWV fertőzést azonosítottunk, ami ennek a kórokozónak Magyarországon új gazdanövénye, és járványtani szerepe is feltételezhető. | New classification of grapevine viruses, occurring in Hungarian vineyards, has been made according to the symptoms and recent molecular data. 1) virus degeneration, 2) leaf roll, 3) fleck, 4) rugose wood, 5) yellow mottle, 6) line pattern, 7) virus like diseases (enation, vein necrosis and vein mosaic). Among 277 samples, seventy- six gave positive results in the serological tests. Among the Nepovirus group four viruses could be detected, but the occurrence of GFLV, ArMV, TBRV, GCMV were not so frequent, than it was thought earlier. The ratio of GLRaV-1, -2 and -3 were similar, as in case of Nepoviruses. High infection rates of GFKV were detected. One GLRaV-1 and three GLRaV-3 isolates were characterised by molecular methods. The molecular data were run in a phylogenetic analyis in which the HSP70h genes of a large number of isolates from elsewhere in the world were included. The phylogenetic trees showed that the four Hungarian isolates 2.2, 3.5 and the 4.2. isolates could be inserted into the earlier classified five groups of foreign GLRaV-3 isolates into the group Nr. 2., but the isolate 1.4 belonged to the group Nr. 4. The GLRaV-1 CSE.6.4.1 isolate belonged to the earlier created group “E”. These sequence dates get into the Gene bank (HE794021, HE794022, HE794023, HE794024, HE794025). On bases of electronmicroscopic and molecular studies Aristolochia clematitis found in vineyards, which proved to be infected with TSWV

    General properties of grapevine viruses occurring in Hungary

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    The past fifty years important advances have been made in the field of grapevine virus research, including characterization of pathogens and control measurements. Still the occurrence of Grapevine fanleaf virus (GFLV), Arabis mosaic virus (ArMV), Tomato black ring virus (TBRV), Grapevine chrome mosaic virus (GCMV), Alfalfa mosaic virus (AMV), Grapevine Bulgarian latent virus (GBLV), Grapevine fleck virus (GFkV), Grapevine leafroll- associated viruses (GLRaV1-4), Grapevine virus A (GVA), Grapevine virus B (GVB) and Grapevine rupestris stem pitting- associated virus (GRSPaV) have been reported in Hungary and characterized by conventional methods as woody indexing, herbaceous indexing and serological methods. Among grapevine viruses the Grapevine line pattern virus (GLPV) seems to be uncial; because it was reported only in Hungary. Causal agents of several grapevine diseases, like enation, vein necrosis and vein mosaic remained undiscovered. These virus-like diseases occurred only sporadically, without economic importance

    Hierarchical Black Hole Mergers in Active Galactic Nuclei

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    The origins of the stellar-mass black hole mergers discovered by LIGO/Virgo are still unknown. Here we show that, if migration traps develop in the \add{accretion} disks of Active Galactic Nuclei (AGNs) and promote the mergers of their captive black holes, the majority of black holes within disks will undergo hierarchical mergers---with one of the black holes being the remnant of a previous merger. 40% of AGN-assisted mergers detected by LIGO/Virgo will include a black hole with mass 50\gtrsim 50 M_\odot, the mass limit from stellar core collapse. Hierarchical mergers at traps in AGNs will exhibit black hole spins (anti-)aligned with the binary's orbital axis, a distinct property from other hierarchical channels. Our results are suggestive, although not definitive (with Odds ratio of 1\sim 1), that LIGO's heaviest merger so far, GW170729, could have originated from this channel.Comment: 6 pages, 3 figures; accepted in PR

    Statistics of the Sunyaev-Zel'dovich Effect power spectrum

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    Using large numbers of simulations of the microwave sky, incorporating the Cosmic Microwave Background (CMB) and the Sunyaev-Zel'dovich (SZ) effect due to clusters, we investigate the statistics of the power spectrum at microwave frequencies between spherical multipoles of 1000 and 10000. From these virtual sky maps, we find that the spectrum of the SZ effect has a larger standard deviation by a factor of 3 than would be expected from purely Gaussian realizations, and has a distribution that is significantly skewed towards higher values, especially when small map sizes are used. The standard deviation is also increased by around 10 percent compared to the trispectrum calculation due to the clustering of galaxy clusters. We also consider the effects of including residual point sources and uncertainties in the gas physics. This has implications for the excess power measured in the CMB power spectrum by the Cosmic Background Imager and BIMA experiments. Our results indicate that the observed excess could be explained using a lower value of σ8\sigma_8 than previously suggested, however the effect is not enough to match σ8=0.825\sigma_8=0.825. The uncertainties in the gas physics could also play a substantial role. We have made our maps of the SZ effect available online.Comment: 21 pages, 23 figures, 3 tables. Accepted by MNRAS. We have made our maps of the SZ effect available onlin

    First Nd isotope record of Mediterranean–Atlantic water exchange through the Moroccan Rifian Corridor during the Messinian Salinity Crisis

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    We present the first neodymium isotope reconstruction of Mediterranean–Atlantic water exchange through the Moroccan (‘Rifian’) Corridor 8–5 Ma. This covers the late Miocene Messinian Salinity Crisis (MSC); a period when progressive tectonic restriction of the Mediterranean–Atlantic seaways resulted in extreme, basin-wide Mediterranean salinity fluctuations. The Rifian Corridor was one of these seaways and until now, relatively poor age constraints existed for the timing of Corridor closure, due to the impact of uplift and erosion on the sedimentary record. The bottom water Nd isotope record from the continuous Bou Regreg Valley succession in northwest Morocco allows us to explore corridor connectivity with the Atlantic. Data from the interior and Mediterranean edge of the Rifian Corridor (respectively, the Taza–Guercif and Melilla basins, northern Morocco) provide new information on corridor shallowing and the provenance of water flowing through the seaway. As a result, we can constrain the age of Rifian Corridor closure to 6.64–6.44 Ma. We also find no evidence of the siphoning of Atlantic waters through the seaway (7.20–6.58 Ma). Our results cannot exclude the possibility that at times during the Messinian Salinity Crisis, Mediterranean Outflow Water reached the Atlantic
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