516 research outputs found
Il caso delle mascherine chirurgiche nella lotta alla pandemia da Covid-19. Un esempio di reazione del sistema paese e di collaborazione pubblico private
No full textDesign rainfalls under climate change scenarios in South East Queensland, Australia: A Brisbane River case study
No full textThis study updates design rainfalls for the Brisbane River Basin, Australia, employing rainfall data from eight CMIP5 General Circulation Models (GCMs) across two Representative Concentration Pathways (RCP 4.5 and RCP 8.5) and four future timeframes (2016–2045, 2036–2065, 2056–2085, and 2075–2104), totalling 64 climate futures. Future design rainfalls were computed for Annual Exceedance Probabilities (AEPs) of 1%, 2%, 5%, and 10%, spanning durations from 1 to 7 days. For each climate future, an Annual Maximum Series was established, and a Gumbel distribution was applied to estimate precipitation for various AEPs. Comparisons were made with baseline (stationary) design rainfalls and those derived from Australian Rainfall & Runoff (AR&R) methodology based on temperature scale factors. GCM-derived design rainfalls indicate a general reduction in depths for most durations and AEPs under both RCP scenarios. Specifically, RCP 4.5 demonstrated significant reductions in design rainfalls for the 1% AEP, ranging from −9.61% (1-day duration) to −21.40% (7-day duration). Similarly, RCP 8.5 showed decreased depths, except for 1-day, 2-day, and 3-day design rainfalls in the 2075–2104 timeframe, which exhibited marginal increases. AR&R methodology yielded substantially higher design rainfalls, with increases reaching +11.6% for 1% AEP and 10% AEP. While GCM-derived rainfalls imply adequacy of current drainage infrastructure, AR&R methodology suggests a more conservative estimate, emphasizing the need for cautious climate data interpretation.Full Tex
Nymphon ortmanni Helfer 1938
No full text<i>Nymphon ortmanni</i> Helfer, 1938 <p>(Figure 6)</p> <p> <i>Nymphon ortmanni</i> Helfer, 1938, p. 164, fig. 1.</p> <p> <i>Nymphon ortmanni</i>: Stock 1953, p. 34, fig. 1; 1954, p. 20, fig. 6d–e; Utinomi 1955, p. 10, fig. 5; 1962, p. 92; 1971, p. 320; Nakamura and Child 1983, p. 56; Nakamura 1987, p. 6, pls. 4, 35.</p> <p> <i>Material examined</i></p> <p> <i>Paratypes.</i> ZMA 1072 (three males), Sagami Bay, Japan, 7 July 1904, K.A. Haberer.</p> <p> <i>Non-types.</i> ZIHU 4097 (one female), ZIHU 4098 (one female), 26 ◦ 32.18 ′ N, 127 ◦ 43.96 ′ E, off Nago Bay, Okinawa, 26 May 2002, 394– 404 m depth, beam trawl, Y. Takahashi; ZIHU 4099 (one male with eggs), ZIHU 4100 (one female), ZIHU 4101 (three juveniles), 26 ◦ 48.23 ′ N, 127 ◦ 52.18 ′ E, off Nago Bay, Okinawa, 26 May 2002, 337– 340 m depth, beam trawl, Y. Takahashi; ZIHU 4102 (one juvenile), 26 ◦ 19.10 ′ N, 127 ◦ 25.56 ′ E, off north of Kuro Island, Okinawa, 24 May 2003, 596– 606 m depth, beam trawl, Y. Takahashi; ZIHU 4103 (one male with eggs), 26 ◦ 14.75 ′ N, 127 ◦ 31.90 ′ E, south of Nagannu Island, Okinawa, 25 May 2003, 51– 53 m depth, dredge, Y. Takahashi; ZIHU 4104, (one juvenile), 28 ◦ 09.20 ′ N, 129 ◦ 31.50 ′ E, southeast of Amami Islands, Kagoshima, 25 May 2004, 332– 334 m depth, beam trawl, Y. Takahashi; ZIHU 4105 (one male with eggs), ZIHU 4106 (one juvenile), 26 ◦ 32.90 ′ N, 127 ◦ 43.94 ′ E, west of Nago, Okinawa, 22 May 2005, 386– 402 m depth, beam trawl, Y. Takahashi.</p> <p> <i>Description</i></p> <p>Trunk (Figure 6A) slender, completely segmented. Lateral processes twice as long as their diameters, separated by their lengths, each with single tiny distal seta without protuberance; some lateral processes lack setae. Neck more than three times as long as wide. Ocular tubercle in midline between anterior margins of first lateral processes, shorter than its basal diameter, dome-shaped, tilted toward posterior, with small distal knob; eyes pigmented and situated halfway up ocular tubercle. Abdomen height about three times basal diameter, cylindrical proximally, slightly tapering and blunt distally, without setae. Proboscis long, straight, cylindrical, almost as long as neck, less than three times as long as wide, swollen distally and centrally, without setae; lips flat.</p> <p>Chelifore scapes (Figure 6A) about seven times as long as wide, with several dorsal setae, with rows of setae dorsodistally and laterodistally. Chelae (Figure 6B) slightly curved inwards; palms cylindrical, equal to finger length, with many short setae; movable finger with 39 pointed teeth endally; immovable finger same length as movable finger, with 34 teeth; fingers crossed at tips.</p> <p>Palps (Figure 6C) slender, five-segmented; second segment longest; third segment 0.7 times length of second segment and 1.2 times length of fifth segment; fifth segment 1.5 times length of fourth segment; all segments except for first have setae over entire surface, each segment more setose than next proximal segment.</p> <p>Ovigers (Figure 6D) 10-segmented; fifth segment longest, 1.3 times length of fourth, gently curved, swollen distally, distal width 1.5 times basal width, with moderately long setae dorsally, smaller setae ventrally, and several distal setae longer than dorsal setae; first segment glabrous; second and third segments with a few setae; fourth segment with setae ventrally and dorsodistally; sixth segment less than half length of fifth, with many setae over entire surface except ventrally; distal four segments (Figure 6E) with several setae ectally and laterally, and with compound spines having three denticles per side; eighth and ninth segments equal in length, 0.6 times as long as seventh segment; terminal segment slightly shorter than eighth and ninth segments; terminal claw equal to or slightly shorter than terminal segment, with seven tooth serrations; spine formula 10: 6: 6: 6:: 7.</p> <p>Legs (Figure 6F) long, slender, with many small setae and a few longer distal setae on every segment, each segment after second coxa narrower and more setose than preceding segment, propodus about one-third the width of coxa and of femur. Second coxa slightly longer than first and third coxae combined; femur 0.7 times length of first tibia; second tibia longest, less than 1.5 times length of first tibia. Cement gland pores open on ventral side of femur and first tibia, numbering six to 41 in a line on femur and seven to 31 on first tibia. Tarsus and propodus length (Figure 6G) subequal. Main claw slender, longer than half propodus length; auxiliary claws short, about a quarter as long as main claw.</p> <p> <i>Remarks</i></p> <p> Our specimens correspond well with the original description of <i>N</i>. <i>ortmanni</i> by Helfer (1938) and the re-description by Nakamura (1987) in the morphology of chelifores, ovigers and palps, and in the length ratios of tarsus to propodus and of auxiliary claws to main claw. Our specimens, however, have a more elongate trunk than that described by these two authors.</p> <p> <i>Nymphon ortmanni</i> is most similar to <i>N</i>. <i>japonicum</i> in the structures of chelifores, palps, and ovigers, shape of the trunk and body size. However, the two species can be easily distinguished by the proportions of the claws. <i>Nymphon ortmanni</i> has a main claw that is over half the length of the propodus, and relatively small auxiliary claws that are a quarter the length of main claw, whereas <i>N</i>. <i>japonicum</i> has a smaller main claw that is less than half the length of the propodus, and longer auxiliary claws that are nearly or over half the length of the main claw.</p> <p> Careful re-examination of the paratype specimens of <i>N</i>. <i>ortmanni</i> revealed that this species has multi-pored cement glands on both the femur and first tibia. The number of pores, which seems to depend on segment length, is 24–41 on the femur and 22–31 on the first tibia of paratype males, compared with six to 26 on the femur and seven to 11 on the first tibia in our specimens.</p> <p> <i>Nymphon ortmanni</i> was originally described from Sagami Bay, central Japan (Helfer 1938), and was subsequently found at various sites from Sagami Bay to Tsugaru Strait, northern Japan. Hedgpeth (1949) noted concerning the geographical distribution of pycnogonids that “a few endemic species are found along the shore both north and south of 35 ◦ N, however, on the whole species do not cross this boundary”. Since his study, three species of <i>Nymphon</i> (<i>N</i>. <i>gunteri</i> Hedgpeth, 1949, <i>N</i>. <i>japonicum</i> and <i>N</i>. <i>kodanii</i> Hedgpeth, 1949) have been found to occur across the 35 ◦ N parallel; our study adds <i>N</i>. <i>ortmanni</i> as the fourth.</p> <p>This species is endemic to Japan. It was previously known from Tsugaru Strait to Suruga Bay at depths of 75–450 m, (Utinomi 1971; Nakamura and Child 1983, 1991); our study extends its known distribution southward to Okinawa and its minimum known depth to 51 m. Our specimens represent the first record from subtropical waters.</p>Published as part of <i>Takahashi, Yoshie, Kajihara, Hiroshi & Mawatari, Shunsuke F., 2012, Sea spiders of the genus Nymphon (Arthropoda: Pycnogonida) from waters around the Nansei Islands, Japan, pp. 1337-1358 in Journal of Natural History 46 (21 - 22)</i> on pages 1349-1352, DOI: 10.1080/00222933.2012.655797, <a href="http://zenodo.org/record/5200053">http://zenodo.org/record/5200053</a>
Individual and combined impacts of urbanization and climate change on catchment runoff in Southeast Queensland, Australia
No full textAssessing the impacts of climate change and land-use change is of critical importance, particularly for urbanized catchments. In this study, a novel framework was used to examine and quantify these impacts on the runoff in six catchments in Southeast Queensland, Australia. For each catchment, temporal variations in impervious areas were derived from six satellite images using a sub-pixel classification technique and incorporated into the SIMHYD hydrological model. This model was satisfactorily calibrated and validated with daily runoff observations (0.63 ≤ Nash–Sutcliffe efficiency coefficient ≤ 0.94, percent bias ≤ ±18 %) and was used to produce baseline runoff for 1986–2005 in these six catchments. The projected population increase was used to predict future imperviousness based on the linear relationship between the two. The projected rainfall and evapotranspiration were derived from the ensemble means of the eight general circulation models. Catchment runoff was projected under two climate change scenarios (RCP4.5 and 8.5), three urbanization scenarios (low, medium, and high), and six combined scenarios for two future periods (2026–2045 and 2046–2065). Comparing with the baseline, it was found that (1) climate change alone would lead to a −3.8 % to −17.6 % reduction in runoff among the six catchments, for all scenarios and both future periods; (2) a 11.8 % to 78 % increase in runoff was projected under the three urbanization scenarios, and (3) a decrease in runoff due to climate change would moderate the increase in runoff caused by urbanization. For example, the combined effect would be a 54 % increase in runoff, with a −17.2 % decrease due to climate change and 78 % increase due to urbanization. Overall, runoff in the six catchments may be significantly affected by urban expansion. From this study, decision makers could gain a better understanding of the relative importance of the effects of climate and land-use change, which can be applied when developing future long-term water management plans at the catchment scale.No Full Tex
Towards a Pan-European property index : methodological opportunities
No full textThesis (S.M. in Real Estate Development)--Massachusetts Institute of Technology, Dept. of Architecture, Center for Real Estate, 2004 [first author]; and, (S.M. in Real Estate Development)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, Center for Real Estate, 2004 [second author].This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Includes bibliographical references (p. 85-87).This study examines the methodological opportunities of index construction for the Pan-European property index, whose release is planned by the company Investment Property Databank (IPD). To address the question of temporal aggregation in appraisal indices, three index construction methods, namely "Stale Appraisal", "Linear Interpolation", and "Repeated Measures Regression", are tested for their accuracy in dealing with infrequent appraisals. Our model is based on a simulation approach, calculating appraised indices from a simulated "true index" of randomly generated returns, and directly comparing the statistical characteristics of these index returns to the true return. As broader context, this paper also gives an overview of the current theories in respect to general valuation issues on a disaggregate, aggregate and international level. We also investigate the European real estate market regarding currently applied market size measuring, structure and country performance. In particular, we explore crucial valuation issues that are relevant for the planned Pan-European property index to obtain the respect of the international investment community.by Friederike Helfer and Markus Witta.S.M.in Real Estate Developmen
A Translation of Monika Helfer\u27s \u3ci\u3eDie Bagage\u3c/i\u3e with Afterword
No full textThis thesis is a literary translation of Austrian author Monika Helfer’s 2020 novel Die Bagage. The work tells the story of the Moosbrugger family during the First World War in a small village in Austria. A mix of memoir and imagined account come together in this work by Helfer as she narrates the story of her grandmother, Maria, who is the beauty of the village with seven children. When Josef, Maria’s husband, goes off to the battlefield, Maria and the children stay behind with the mayor watching over them. The village constantly concerns itself with what is happening with the Moosbruggers, also known as the riff-raff. When Georg from Hanover appears in Maria\u27s life and then suddenly leaves, Maria becomes pregnant with Helfer’s mother, Grete, and almost no one believes she is the daughter of Josef, even Josef himself. What would come of the riff-raff? From a female perspective, Helfer recalls the past with her vivid imagination and descriptive language, drawing from anecdotes from her aunt Kathe and her personal experiences growing up with the baggage of being one of the riff-raff.
A critical translator’s afterword follows the translation. In this section, there are descriptions of the original work’s author and the novel’s literary context, an overview of the various techniques used in translating the novel, and the different challenges the translation posed. The challenges include the title, pacing, and tone as well as various technical grammar elements such as the special subjunctive. For each challenge posed, strategies used to overcome these difficulties are discussed. For the scholarly element, current literature from translation studies (namely Antonova, Castro, Guerra, Hariyanto, Hermans, Slavova and Phoenix, von Flotow, and Walinski) is referenced, examined, and alluded to throughout the writing of the afterword. Lastly, I will compare the newest 2023 British-published translation of the novel from Gillian Davidson to my American English translation, analyzing how a professional in the field dealt with the challenges I experienced.
Advisor: Ted Dawso
Konzept und Evaluation einer Facebook-Applikation zur crossmedialen Selbstorganisation freiwilliger Helfer
No full textDas mitteleuropäische Hochwasser 2013 sorgte für große Schäden in
weiten Teilen Deutschlands. Währenddessen und in der anschließenden Wiederherstellungsphase koordinierten betroffene und nicht betroffene Bürger ihre Hilfsaktivitäten nicht nur vor Ort, sondern auch in sozialen Medien wie Twitter, Facebook und mit Tools wie Google Maps. Basierend auf einer Vorstudie zu den Aktivitäten in Twitter und Facebook sowie Interviews mit „Digital Volunteers“ (hier: Gründer und Moderatoren von Facebook-Gruppen zum Hochwasser) stellt dieser Beitrag eine als Facebook-App realisierte crossmediale Applikation zur gruppen- und plattformübergreifenden Informationsbeschaffung und -Veröffentlichung vor, die der (Selbst-)Koordination ungebundener Helfer dienen soll. Diese wurde mit 20 Nutzern qualitativ evaluiert und zeigt Implikationen für die technische Unterstützung der Partizipation Freiwilliger in Katastrophenlagen auf
Vielseitige Helfer
No full textS.16-19Mobile Manipulatoren, also autonom fahrende Plattformen mit einem Roboterarm, vereinen die Beweglichkeit eines fahrerlosen Transportfahrzeuges und die Handhabungsfähigkeiten eines Roboters. In der Interaktion mit dem Menschen spielen sie ihr volles Potenzial aus, was aber besondere Anforderungen an die Sicherheit stellt. Mit dem entsprechenden Fachwissen ist es gut möglich, sichere Systeme umzusetzen, auch wenn es für sie bisher nur teilweise passende Normen gibt.69Nr.
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