cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Færdselsstyrelsens storskala-demonstrationsprojekt med partikelfiltre i Odense
Creators: name: Hansen, Ken Friis
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: I forbindelse med Færdselsstyrelsens storskala-demonstrationsforsøg med partikelfiltre i Odense gennemføres et opfølgningsprojekt med det formål at måle, indsamle, bearbejde og rapportere data fra Odense. Opfølgningen omfatter bl.a: • Registrering af brændstofforbrug, servicebehov og driftsomkostninger • Måling af emissioner fra udvalgte køretøjer • Luftkvalitetsmålinger i to af Odenses mest trafikerede gader I dette paper præsenteres erfaringer og målinger fra demonstrationsprojektets første halvår fra januar 2000 til sommeren 2000.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
A biflavonoid glycoside from Lomatogonium carinthiacum (Wulf) Reichb
Creators: name: Qinghu Wang
name: Narenchaoketu Han
name: Xiaolan Wu
name: Wenquan Tai
name: Nayintai Dai
name: Rongjun Wu
name: Jiesi Wu
name: Bagenna Bao
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: Biological Sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Biochemistry

description: A biflavonoid glycoside with a new carbon skeleton, named carinoside A, was isolated from the n-BuOH crude extract of the whole plant of Lomatogonium carinthiacum (Wulf) Reichb. The structure of the new compound was elucidated by using spectroscopic methods, including UV, IR, HR-ESI-MS and extensive 1D and 2D NMR techniques.
Elbilen i dagens Danmark – energi, forbrug og økonomi
Creators: name: Schøn, Henriette
name: Frost, Jens
name: Larsen, Esben
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: Elbilen anno 2000 er en moderne bil, der serieproduceres på basis af eksisterende bilmodeller, hvilket giver en kvalitet og pålidelighed svarende til kendte brændstofdrevne biler (ICE-biler). Elbilen er på centrale punkter væsentligt forskellig fra den traditionelle bil, hvilket kræver en anden tankegang i forbindelse med løsning af transportopgaver ved anvendelse af elbiler. En præsentation af den moderne elbil er derfor nødvendig for forståelse af de forskelle, som ses på forbrugsområdet og de deraf afledte miljøforhold. Der har været en vis usikkerhed angående elbilernes forbrugstal ved løsning af transportopgaver. VidenCenter for Elbiler har set det som sin opgave at afdække denne problematik gennem en analyse af et stort antal kørselsdata indsamlet fra danske elbiler. På basis af disse data, hvis detaljeringsgrad er stærkt svingende, kombineret med direkte målinger på et køretøj præsenteres erfaringer med elbiler i praktisk brug ved forskellige kørselsmåder. Herudfra vurderes miljøeffekterne ved erstatning af ICE-drevne transporter med eldrevne. Erfaringerne viser, at den moderne elbil i praktisk brug er mere energiøkonomisk end selv de senest fremkomne 3Liters-modeller. Det viser sig, at de forskellige køremønstre (Motorvej, Landevej, By, Stop/Go) og kørselsmåder (forsigtigt/aggressivt ) spiller en afgørende rolle for den samlede energiøkonomi. Merforbrug på en faktor 2 er ikke usandsynligt ved f. eks. frisk Stop/Go-kørsel med en lastet elbil. Uanset disse forhold, er der for de fleste luftforurenende stoffer, også CO2, en samlet gevinst ved elbildrift. Samlet kan denne gevinst forventes øget over de næste år som følge af den teknologiske udvikling såvel på batteriområdet som i den stadigt forbedrede elproduktion. Specielt, hvis elbilen alene lades fra vedvarende energikilder er brugen af elbilerne helt emissionsfri.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
Review of Sustainable Methane Mitigation and Biopolymer Production
Creators: name: O. P. Karthikeyan
name: Cirés, Samuel
name: Heimann, Kirsten
name: K. Chidambarampadmavathy
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Biological Sciences
subject: Earth and Environmental Sciences
subject: Biochemistry

description: Biological methane (CH4) mitigation combined with biopolymer (PHA-polyhydroxyalkaonate/PHB-polyhydroxybutyrate) production is a viable option in this fossil fuel-constrained era. Methantrophs are bacteria that can re-route CH4 into PHA/PHB under nutrient-starved conditions. However, most studies (up to 90%) investigated pure cultures to demonstrate capacity for PHA/PHB accumulation, which on an industrial scale is unlikely to be serviceable. Furthermore, commercialization is handicapped as there are still a number of unresolved issues which affect productivities, such as optimized process variables, characterization of robust consortia, and optimized reactor design. This review will summarize existing knowledge and highlight research needs to fast track methanotrophic PHA/PHB production from CH4.
Brændselsceller og brint i transportsektoren
Creators: name: Jørgensen, Kaj
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: Belyser mulighederne for at opnå markante energibesparelser og omlægning til vedvarende energi gennem skift til brændselsceller og/eller brint i transportmidler. Det har to hovedelementer: • en gennemgang af mulige udviklingsforløb for skift brændselsceller i transportmidler samt hvilke muligheder dette har for at bringe et skift til brint i transportsektoren • en analyse af mulighederne for at reducere miljøbelastning og forbrug af fossil energi, herunder scenario for introduktion af vedvarende energi. Desuden indeholder indlægget en vurdering af mulighederne for at gøre transportmidler mere energi-effektive.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
Published effect sizes in Social and Developmental Psychology
Creators: name: Weinerova, Josefina
name: Szűcs, Dénes
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Life Sciences
subject: Social and Behavioral Sciences
subject: developmental psychology
subject: effect sizes
subject: sample size
subject: social psychology
subject: statistical power

description: The aim of the current research is to evaluate how has the distribution of published sample sizes changed in the area of social and developmental psychology in the past decade and what have been the corresponding changes in effect size distribution.
Operationel metode til opgørelse af emissioner fra godstransport
Creators: name: Boeshave, Erik
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: Projektet er finansieret af Miljøstyrelsens Program for renere produkter m.v. Tanken er at give transportkøber mulighed for at få en dynamisk viden om godstransportens miljøbelastning. Niveauet skal være differentieret således, at arbejdsbelastningen ved at lave beregningerne bliver acceptabel samtidig med, at tiltag rettet mod miljøforbedringer gengives korrekt i resultaterne. Her kan f.eks. nævnes brug af filtre eller indkøb af grøn el eller svovlfattigt brændstof.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
title:  La violenza organizzata. Riflessioni sociologiche sulla guerra
Creators: name: Rosato  ,  Valeria
Publisher: name: Roma Tre University
publisherIdentifier: https://ror.org/05vf0dg29
publisherIdentifierScheme: ROR
Year: 2024

description: Alla fine della Guerra Fredda si è sviluppato un vivace dibattito pubblico e accademico sulla natura dei conflitti armati contemporanei, sulle loro trasformazioni e sulla loro presunta novità rispetto alle guerre precedenti. Per marcare questi cambiamenti sono state coniate numerose definizioni: etnico, predatorio, criminale, postmoderno, ibrido, asimmetrico, ecc. Attraverso l’analisi di un modello di lungo termine basato sulle dinamiche storiche della violenza organizzata, elaborato dal sociologo Malešević, si dimostra che all’interno delle società moderne la crescita esponenziale degli apparati burocratici e ideologici è alla base della costante crescita della violenza organizzata, e di conseguenza che il fenomeno della guerra non ha subito trasformazioni così radicali da giustificare un cambio di paradigma.

At the end of the Cold War, a lively public and academic debate arose on the nature of contemporary armed conflicts, their transformations and their supposed novelty compared to previous wars. Numerous definitions were coined to mark these changes: ethnic, predatory, criminal, postmodern, hybrid, asymmetric, etc. Through the analysis of a long-term model based on the historical dynamics of organised violence, elaborated by the sociologist Malešević, it is demonstrated that within modern societies, the exponential growth of bureaucratic and ideological apparatuses is at the root of the constant growth of organised violence, and consequently that the phenomenon of war has not undergone such radical transformations as to justify a paradigm shift.
description: Democrazia e Sicurezza – 2022 n. 3
Fremtidig luftkvalitet i danske byer - effekter af skærpede emissionsnormer
Creators: name: Jensen, Steen Solvang
name: Berkowicz, Ruwim
name: Winther, Morten
name: Palmgren, Finn
name: Zlatev, Zahari
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: Omfattende beregninger med en række luftkvalitetsmodeller udviklet af Danmarks Miljøundersøgelser viser, at den regionale baggrundsforurening uden for byerne, bybaggrundsforureningen over byerne og luftkvaliteten i gadeniveau bliver bedre i fremtiden. Dette skyldes især EU’s skærpede regulering af køretøjers emission. EU’s nye grænseværdier for kvælstofdioxid (NO2), kulilte (CO) og benzen gældende for 2010 forventes ikke at blive overskredet. Ozonniveauerne forventes at stige lidt, fordi begrænsningen i bilernes emission af kvælstofmonoxid (NO) betyder, at mindre ozon fjernes i reaktioner med NO i dannelsen af NO2. Det er endnu ikke muligt at modellere partikler. Ud fra foreløbige vurderinger er der usikkerhed om, hvorvidt EU’s grænseværdi for partikler kan overholdes i 2010. Grænseværdierne er opstillet for at beskytte befolkningens sundhed.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
Regionale trafikanters præferencer for kollektiv trafik
Creators: name: Ildensborg-Hansen, Jane
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: Analysen har til formål at belyse konkurrenceforholdet mellem bus og tog i den regionale kollektive trafik. På Lolland og Djursland er der gennemført computerbaserede interviews med de regionale trafikanter for at belyse deres præferencer. Respondenterne blev rekrutteret ved hjælp af en postkortanalyse. Spørgeskemaet, som respondenterne blev præsenteret for, indeholdt en del, der omhandlede kvalitative vurderinger af den kollektive trafik og en del, der omhandlede kvantitative vurderinger af samme. I den kvalitative del er respondenterne blevet bedt om at vurdere en række serviceparametre ved den eksisterende bus- og togbetjening. Endvidere er respondenternes krav og ønsker til den kollektive trafik belyst ved at respondenterne har rangordnet en række parametre ud fra hvor vigtige de er, for at en respondent vil overveje at skifte til et andet transportmiddel. I den kvantitative del er respondenternes præferencer undersøgt gennem en Stated Preference analyse med det formål at kvantificere de regionale trafikanters betalingsvillighed for henholdsvis bus og tog. Opstillingen af de transportalternativer, som respondenterne blev præsenteret for, tog udgangspunkt i respondentens faktisk udførte tur fra postkortanalysen. I dette paper præsenteres resultaterne fra de kvalitative og kvantitative analyser.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
Udlicitering af Odense Bytrafik
Creators: name: Jensen, Niels Melchior
name: Rassen, Jørense
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: Det kommunale bybusselskab i Odense sammenlignes med Aalborg Omnibus Selskab, der blev omdannet til aktieselskab i 1995. Sammenligningerne foretages dels med hensyn til økonomi og dels med hensyn til service. Der er gennemført spørgekortanalyser af såvel passagerer, som chauffører og inter-views af personale og ledelse ved de to selskaber. Serviceniveauet for den kollektive trafik i de to byer sammenlignes. Formålet med projektet var at skabe et beslutningsgrundlag for Odense Byråds overvejelser om eventuel udlicitering af bybusdriften. Paperet præsenterer hovedresultaterne af undersøgelserne, der gennemførtes i efteråret 1999.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
Udvikling af chaufførjobbet
Creators: name: Kiertzner, Lise
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: Chaufførens optræden har stor betydning for kundernes oplevelse af busturen – og hemed også lyst til at bruge kollektiv transport. I en tid hvor stadig flere får egen bil og dermed mulighed for at fravælge bus og tog er det derfor vigtigt at gøre det så attraktivt som muligt at benytte bussen. Mange faktorer spiller ind for at dette kan lykkes. I dette paper er det chaufførens rolle, der er sat i fokus og hvordan chaufførens job kan udvikles, så det giver mulighed herfor. Paperet tager udgangspunkt i erfaringer fra HT-området og omhandler: • Den konkrete baggrund for udvikling af chaufførjobbet, herunder konsekvenser ved udlicitering af kørslen • Rollefordeling mellem trafikseskab og busselskab • Konkrete indsatser i HT-området inden for: arbejdsmiljø, kommunikation og kompetencer
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
Review of sustainable methane mitigation and bio-polymer production
Creators: name: O. P. Karthikeyan
name: Cirés, Samuel
name: Heimann, Kirsten
name: K. Chidambarampadmavathy
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Biological Sciences
subject: Earth and Environmental Sciences
subject: Biochemistry

description: Biological methane (CH4) mitigation combined with bio-polymer (PHA-polyhydroxyalkaonate/PHB-polyhydroxybutyrate) production is a viable option in this fossil fuel-constrained era. Methantrophs are bacteria that can re-route CH4 into PHA/PHB under nutrient-starved conditions. However, most studies (up to 90%) investigated pure cultures to demonstrate capacity for PHA/PHB accumulation, which on an industrial scale is unlikely to be serviceable. Furthermore, commercialization is handicapped as there are still number of unresolved issues which affect productivities, such as optimized process variables, characterization of robust consortia and optimized reactor design. This review will summarize existing knowledge and highlight research needs to fast track methanotrophic PHA/PHB production from CH4.
Numerical Analysis of Heat Transfer characteristics for flow through 90° bend
Creators: name: Rahat, Nahid Al Nahian
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 401706
subject: Numerical modelling and mechanical characterisation

description: An investigation of flow through bends has considerable relevance and application to a vast array of situations, given their presence in almost all pipelines. A numerical study had been conducted to investigate the fluid flow and heat transfer characteristics in a 90° bend. The parametric study had been performed using a computational fluid dynamics (CFD) program named FLUENT to estimate the performance of the flow through 90° bend pipe. Temperature distribution, heat flux, heat transfer coefficient, Nusselt number variation along the bend had been found out. The aim of this study is to investigate the heat transfer analysis between the solid wall and the working fluids in the pipe, in particular focusing on the potential heat transfer enhancements, velocity variation, pressure change caused by bending.
Sporvogne og tog på fælles spor - nye potentialer i kollektiv trafik
Creators: name: Sylvan, Henrik
name: Larsen, Djon
name: Jensen, Jens Christian
name: Skovgaard, Hans-Ole
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: I en række europæiske byer, hvor trafik- og miljøproblemerne synes at være stadigt voksende, er man begyndt at undersøge muligheden for at etablere nye sporvognslinier i byens centrum – evt. i kombination med eksisterende regional togstrækninger. Dette paper redegør for et EU-udviklingsprojekt under 5. rammeprogram, kaldt CrossRail, som forfatterne er en del af. Projektet studerer mulighederne for at sammenkoble lokal og regional sporvogns- og nærbanetrafik, i form af anvendelse af flersystem togmateriel. Der undersøges de markedsmæssige potentialer, tekniske og organisatoriske barrierer, og der ses specielt på problemerne der opstår når sådanne systemer også skal krydse en landegrænse. Projektet skal i 2001 opstille en funktionel kravspecifikation på materiel, der har en fælles standard, så anvendelse kan finde sted i en række forskellige byer, idet sigtet hermed er at materielpriserne kan reduceres, hvorved udbredelse af disse nye kollektive trafiktilbud bliver større.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
Parkér & Rejs i Hovedstadsområdet
Creators: name: Haas, Mette
name: Røhl, Andreas
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: I hovedstadsområdet har HT, Vejdirektoratet, DSB og Banestyrelsen for ca. 1½ år siden igangsat et projekt, der har til formål at vurdere muligheder og effekter af at forbedre forholdene for Parkér og Rejs i Hovedstadsområdet. I første fase er der indsamlet og vurderet tidligere erfaringer og analyser samt foretaget interviews. I anden fase arbejdes der med at erhverve konkrete erfaringer ved hjælp af pilotprojekter og afprøve forskellige virkemidler. På den baggrund vil der i 3. fase bliver udarbejdet en vurdering af potentialet for udbygning af Parkér og Rejs anlæg i i hovedstadsområdet. Formålet med at forbedre forholdene for Parker og Rejs i Hovedstadsområdet er: • At reducere biltrafikken og dermed udgifterne til udbygning af vejnettet • At øge antallet af rejsende med kollektiv trafik. I dette paper redegøres for forudsætninger og muligheder for at opfylde disse mål samt effekterne af etablering af Parkér og Rejs anlæg. Endvidere berøres problemerne ved den valgte metode.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
Prevalence of and risk factors for coccidiosis in kiwi between 1977 and 2011
Creators: name: KJ Morgan
name: I Castro
name: N Lopez-Villalobos
name: WE Pomroy
name: MR Alley
name: BD Gartrell
name: S Hunter
name: L Howe
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: 60506 Virology
subject: FOS: Biological sciences
subject: Cancer
subject: Biological Sciences
subject: Ecology
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Cell Biology

description: AIMS: To identify risk factors associated with coccidiosis in kiwi (Apteryx spp.) using a retrospective analysis of historical data from kiwi examined post-mortem, and to determine the prevalence of coccidial oocysts in the droppings of wild and captive kiwi.METHODS: Necropsy reports were examined from kiwi submitted to the National Wildlife Mortality Database of New Zealand (Huia) between February 1977 and May 2011. All cases that reported histological examination of one or more hepatic, intestinal or renal tissues were included in the study (n=372). Data collated for analysis included the presence or absence of coccidiosis in one or more tissues, age, host species, habitat, and season of submission. Fisher's exact test was used to determine the association between each independent variable and the prevalence of coccidiosis. Droppings opportunistically collected from wild and captive kiwi between January 2008 and June 2010 were also examined for the presence of coccidial oocysts.RESULTS: Coccidiosis was evident in 47/372 (12.6%) kiwi examined post-mortem and was considered the primary cause of death in 12/47 (26%) infected cases. Examination of 412 droppings from wild and captive kiwi collected over a 29-month period revealed that 98 (23.8%) samples contained coccidia at the time of sampling. Enteric (n=27) coccidiosis was the most common form diagnosed using histology, followed by renal (n=19) and hepatic (n=11), with splenic (n=2) and pulmonary (n=1) infections infrequently seen. Many kiwi demonstrated infections in multiple tissues. The prevalence of coccidiosis was greater in juvenile kiwi (36/148, 24.3%) than adults (8/133, 6.0%) or chicks (2/83, 2.4%) (p<0.001), although there was no difference in mortality between age groups. Season of year was also associated with overall prevalence (p=0.05), with most cases being diagnosed in the autumn and winter. Coccidiosis was histologically evident in four of five species of kiwi examined, and in all host species upon analysis of droppings. Host species or habitat (captive vs. wild) did not influence the prevalence of disease detected histologically.CONCLUSIONS: Age and season were the only factors that influenced the prevalence of coccidiosis in kiwi in this study. Coccidiosis was present in all species of kiwi, and this is the first report of coccidiosis in rowi (Apteryx rowi).
title: Journée d'études "La frontière franco-italienne des Alpes-Maritimes, étudier les récits de traversées"
Publisher: name: Université Côte d’Azur
Year: 2018

description: Journée d'étude organisée par l'Urmis et l'Observatoire des Migrations dans les Alpes-Maritimes à  la MSHS de Nice, le jeudi 6 décembre 2018.
Nærbaner ved Århus og Aalborg
Creators: name: Brix, Jens W.
name: Ostenfeld, Thomas
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: I rammeaftalen for jernbaneområdet 2000-2004 er der afsat i alt 250 mio kr til nærbaneudbygning ved Århus og Aalborg. Infrastrukturudvalgene for hhv Århus og Aalborg har i 1999-2000 arbejdet med forslag til nærbaner. I dette paper gøres rede for de tre undersøgte hovedprincipper for nærbaneudbygning i Århusområdet (hhv Udbygnings-, Gade/Vej- og Tunnelforslaget), de principielle alternative tekniske koncepter for nye baneanlæg og nærbanemateriel, etapedeling mm. Desuden omtales planer for nye nærbanestationer og togsystemer. Der gøres rede for betjeningsmæssige og tekniske problemstillinger ved at integrere nærbaneudbygning og et muligt sporvejsnet i Århus.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
Sporvogne i Århus
Creators: name: Marcussen, Leif
name: Vilhof, Preben
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: Århus Kommune og Trafikministeriet iværksatte i juni 1999 en undersøgelse om indførelse af sporvogne i Århus. Undersøgelsen blev gennemført med COWI som konsulent. Undersøgelsen blev opdelt i tre faser. Først en screeningsfase, hvor mange forskellige løsninger - rutemæssige og teknologiske løsninger - blev vurderet på et overordnet niveau. Herefter blev tre forslag detaljeret analyseret i fase 2 omkring indpasning i gadenettet, konsekvenser for anden trafik og overflytning af bilister. I fase 3 blev de tre forslags konse-kvenser på miljø og trafiksikkerhed beregnet, mens økonomien i form af anlægs- og driftsbudgetter blev opstillet.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
Estimation of the Probability of Exposure to Machining Fluids in a Population-Based Case-Control Study
Creators: name: Colt, Joanne S.
name: Dalsu Baris
name: Schwenn, Molly
name: Karagas, Margaret R.
name: Johnson, Alison
name: Silverman, Debra T.
name: Dong-Uk Park
name: Armenti, Karla R.
name: Stewart, Patricia A.
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: Science Policy
subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Biotechnology

description: We describe an approach for estimating the probability that study subjects were exposed to metalworking fluids (MWFs) in a population-based case-control study of bladder cancer. Study subject reports on the frequency of machining and use of specific MWFs (straight, soluble, and synthetic/semi-synthetic) were used to estimate exposure probability when available. Those reports also were used to develop estimates for job groups, which were then applied to jobs without MWF reports. Estimates using both cases and controls and controls only were developed. The prevalence of machining varied substantially across job groups (0.1–>0.9%), with the greatest percentage of jobs that machined being reported by machinists and tool and die workers. Reports of straight and soluble MWF use were fairly consistent across job groups (generally 50–70%). Synthetic MWF use was lower (13–45%). There was little difference in reports by cases and controls vs. controls only. Approximately, 1% of the entire study population was assessed as definitely exposed to straight or soluble fluids in contrast to 0.2% definitely exposed to synthetic/semi-synthetics. A comparison between the reported use of the MWFs and U.S. production levels found high correlations (r generally >0.7). Overall, the method described here is likely to have provided a systematic and reliable ranking that better reflects the variability of exposure to three types of MWFs than approaches applied in the past.[Supplementary materials are available for this article. Go to the publisher's online edition of Journal of Occupational and Environmental Hygiene for the following free supplemental resources: a list of keywords in the occupational histories that were used to link study subjects to the metalworking fluids (MWFs) modules; recommendations from the literature on selection of MWFs based on type of machining operation, the metal being machined and decade; popular additives to MWFs; the number and proportion of controls who reported various MWF responses by job group; the number and proportion of controls assigned to the MWF types by job group and exposure category; and the distribution of cases and controls assigned various levels of probability by MWF type.]
Inference for Time Series Regression Models With Weakly Dependent and Heteroscedastic Errors
Creators: name: Yeonwoo Rho
name: Xiaofeng Shao
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Earth and Environmental Sciences
subject: Genetics
subject: Medicine

description: Motivated by the need to assess the significance of the trend in some macroeconomic series, this article considers inference of a parameter in parametric trend functions when the errors exhibit certain degrees of nonstationarity with changing unconditional variances. We adopt the recently developed self-normalized approach to avoid the difficulty involved in the estimation of the asymptotic variance of the ordinary least-square estimator. The limiting distribution of the self-normalized quantity is nonpivotal but can be consistently approximated by using the wild bootstrap, which is not consistent in general without studentization. Numerical simulation demonstrates favorable coverage properties of the proposed method in comparison with alternative ones. The U.S. nominal wages series is analyzed to illustrate the finite sample performance. Some technical details are included in the online supplemental material.
Driftøkonomi for bus- og banemateriel
Creators: name: Kragerup, Jan
name: Jacobsen, Bent
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: Sammenligning af driftsøkonomi for bus- og banetransport vanskeliggøres ofte af de mange forskelle, som eksisterer mellem de to systemer, blandt andet forskelle i kørehastigheder, standsningsafstande, omfang af personale i materiel og på stationer, finansiering af materiel og infrastruktur mv. I artiklen opstilles sammenlignelige driftsudgifter for bus- og banetrans- port, idet et konkret eksempel lægges til grund, ligesom de samme komponenter medregnes ved opgørelsen af driftsudgifterne for begge systemer. Nærbanemateriel (RegioSprinter) samt bus (18 m ledbus) sammenlignes med udgangspunkt i en ca. 10 km lang strækning med en gennemsnits rejsehastighed på 40 km/t og et interval på 10 min. under myldretidstrafik. Resultatet af opgørelsen er, at driftsudgifterne til nærba- nemateriel er ca. 850 kr./togtime og for ledbus ca. 450 kr./vogntime, begge incl. kapitalomkostninger til materiel. Driftsudgifterne til banemateriel er således i det konkrete tilfælde næsten dobbelt så store som for ledbus. Hvis kapitalomkostningerne ikke medregnes er driftsudgifterne til nærbane dog kun 1/3 større end for bus. Udgifter til infrastruktur og stationer/stoppesteder (investeringer og drift) samt evt. personale i køretøjerne ud over lokofører/chauffører, er ikke medregnet. Et aspekt, der bør tages med i betragtning, er den forskel i attraktivitet passagererne oplever ved systemerne. Alt andet lige vil banetransport medføre flere passagerer end bustransport (den såkaldte "baneeffekt", som meget vel kan medføre 15-30% flere passagerer med bane end med den tilsvarende buslinie).
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
Incitamentskontrakt for Metroens drift
Creators: name: Fich, Casten
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: Indlægget giver en beskrivelse af de ydelser, principper og styringsmekanismer, der ligger bag opbygningen af kontrakten for drift og vedligehold for metroen. Der fokuseres på de bonus- og straffeordninger, der er etableret for sikre en kort rejsetid, en høj driftspålidelighed og en hurtig, relevant og troværdig information til kunderne. Indlægget behandler den grundlæggende udfordring, der ligger i at tilvejebringe et højt serviceniveau for kunderne i den kollektive trafik, når driften gennemføres via driftskontrakter, som vindes ved udlicitering. Incitamenter for følgende områder behandles: • driftspålidelighed • rejsegaranti • antal kunder • kundevendte områder samt personale • vedligehold • billettering • partnerskab
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
Transport of Airborne Particles from an Unobstructed Cough Jet
Creators: name: Shichao Liu
name: Novoselac, Atila
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: 60506 Virology
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Hematology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Developmental Biology
subject: Ecology
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Biotechnology
subject: Molecular Biology
subject: Cell Biology
subject: Microbiology
subject: Physics
subject: Engineering
subject: Biochemistry
subject: Biophysics

description: This article presents analytical and experimental results for the velocity distribution and transport of expiratory particles from an artificial cough. The stream-wise penetration distance and velocity field of the cough jet were determined through a combination of dimensionless analysis and experimental techniques. The experiments were conducted in a well-controlled environmental chamber with simplified thermal manikins to simulate human coughs and buoyant thermal plumes, and involved flow visualization, velocity measurements employing high and low velocity hot-wire anemometers, and particle size and concentration measurement. The study analyzed three particle sizes—0.77, 2.5, and 7 μm—to examine the impact of particle size on particle transport in the cough jet region and in the vicinity of a receiver occupant positioned in close proximity to the coughing source. The results indicate that the cough jet has a lower axial velocity but higher span-wise expansion rate than a steady jet with an identical discharge velocity. The particles of three sizes have a similar trajectory when considering the transport in the cough jet region. However, particle concentration distributions of the three size particles show that size is an important factor for particle transport in the vicinity of the receiver occupant where airflow velocity decays to the room background air velocity. Furthermore, the results suggest that a cough jet is able to overcome the buoyant human thermal plume and travel further ahead in the region behind the receiver occupant.Copyright 2014 American Association for Aerosol Research
Transport of Airborne Particles from an Unobstructed Cough Jet
Creators: name: Shichao Liu
name: Novoselac, Atila
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: 60506 Virology
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Hematology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Developmental Biology
subject: Ecology
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Biotechnology
subject: Molecular Biology
subject: Cell Biology
subject: Microbiology
subject: Physics
subject: Engineering
subject: Biochemistry
subject: Biophysics

description: This article presents analytical and experimental results for the velocity distribution and transport of expiratory particles from an artificial cough. The stream-wise penetration distance and velocity field of the cough jet were determined through a combination of dimensionless analysis and experimental techniques. The experiments were conducted in a well-controlled environmental chamber with simplified thermal manikins to simulation human coughs and buoyant thermal plumes, and involved flow visualization, velocity measurements employing high and low velocity hot-wire anemometers, and particle size and concentration measurement. The study analyzed three particle sizes - 0.77, 2.5 and 7μm - to examine the impact of particle size on particle transport in the cough jet region and in the vicinity of a receiver occupant positioned in close proximity to the coughing source. The results indicate that the cough jet has a lower axial velocity but higher span-wise expansion rate than a steady jet with an identical discharge velocity. The particles of three sizes have a similar trajectory when considering the transport in the cough jet region. However, particle concentration distributions of the three size particles show that size is an important factor for particle transport in the vicinity of the receiver occupant where airflow velocity decays to the room background air velocity. Furthermore, the results suggest that a cough jet is able to overcome the buoyant human thermal plume and travel further ahead in the region behind the receiver occupant.
Inference for Time Series Regression Models With Weakly Dependent and Heteroscedastic Errors
Creators: name: Yeonwoo Rho
name: Xiaofeng Shao
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Earth and Environmental Sciences
subject: Genetics
subject: Medicine

description: Motivated by the need to assess the significance of the trend in some macroeconomic series, this paper considers inference of a parameter in parametric trend functions when the errors exhibit certain degrees of nonstationarity with changing unconditional variances. We adopt the recently developed self-normalized approach to avoid the difficulty involved in the estimation of the asymptotic variance of the ordinary least squares estimator. The limiting distribution of the self-normalized quantity is non-pivotal but can be consistently approximated by using the wild bootstrap, which is not consistent in general without studentization. Numerical simulation demonstrates favorable coverage properties of the proposed method in comparison with alternative ones. The U.S. nominal wages series is analyzed to illustrate the finite sample performance. Some technical details are included in the online supplemental material.
Synthetically Useful Intermediates by Diazosulfone and Sulfonate C–H Insertion
Creators: name: Duminda S. Liyanage
name: Jungong, Christian S.
name: Novikov, Alexei V.
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Science Policy
subject: Biological Sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Evolutionary Biology
subject: Biotechnology
subject: Molecular Biology
subject: Cell Biology
subject: Biochemistry

description: Intramolecular C–H insertion on diazosulfone and diazosulfonate substrates was used to prepare synthetically useful intermediates from easily available starting materials.
Færdselsstyrelsen arbejde med at styrke den kollektive trafik i tyndtbefolkede områder
Creators: name: Darger, Per
name: Bang, Jens Peter
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: I september 1999 blev der i Færdselsstyrelsen etableret et Videncenter for kollektiv trafik i tyndtbefolkede områder. Videncentret administrerer en 5-årig pulje på 90 millioner kr. til forbedring af den kollektive trafikforsyning i tyndtbefolkede områder. Indsatsen bygger videre på de erfaringer med bl.a. fleksible betjeningsformer, der gennem 1990’erne er opnået med støtte fra Trafikministeriet og Færdselsstyrelsen. Dette paper præsenterer de foreløbige resultater af videncentrets arbejde og præsenterer perspektiverne for det videre arbejde.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
Attraktiv kollektivtrafik i småstäder
Creators: name: Frederiksson, Lena
name: Wendle, Björn
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: Mindre svenska städers kollektivtrafik har ägnats litet intresse genom åren. Trafikeringen i dessa bygger inte sällan på linjenät med största möjliga yttäckning, vilket givit slingriga linjesträckningar med låg turtäthet. Utan att egentligen ifrågasättas har trafiken byggts upp utifrån en politisk vilja att ge alla tätortens medborgare möjlighet att åka kollektivt; resultaten har dock medfört en trafik som lockar endast ett fåtal. I Europa, främst i länder som Tyskland, Österrike och Schweiz, har intresset för att förbättra och utveckla kollektivtrafiken i små städer ökat kraftigt under 1990-talet. Detta åstadkommes genom ökad framkomlighet, tydligare stråk, bekvämare fordon, marknadsföring, information mm. Åtgärderna har på många platser inneburit mycket kraftiga resandeökningar. Mot bakgrund av de resandeökningar som har uppnåtts runt om i Europa borde det inte vara omöjligt att öka resandet i svenska småstäder med lågt kollektivresande per invånare. För att undersöka detta påbörjades våren 2000 ett femårigt forskningsprojekt finansierat av KFB. Projektet startar med en förstudie, vilken innehåller: • Informationsinhämtning genom litteraturstudier, statistikgenomgång och intervjuer. • Genomgång av svenska, nordiska och övriga europeiska städer i syfte att finna goda exempel och viktiga framgångsfaktorer. • Studieresa till några städer i Centraleuropa. • Utifrån ovanstående fastlägga en möjlig potential för utveckling i svenska städer. I detta paper presenteras resultaten från litteraturstudien och faktainsamlingen om lyckade satsningar i Europa samt de första resultaten från analysen av en möjlig potential för utveckling i svenska städer.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
Benchmarking av skandinavisk stadsbusstrafik 2000
Creators: name: Lundblad, Göran
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2000

description: Mitt föredrag handlar om att beskriva det troligen bästa förbättringsverktyget inom skandinavisk stadsbusstrafik. Ett förbättringsverktyg som utvecklats av mig och som förra året lockade 38 deltagande städer med stadsbusstrafik. Benchmarking är ett kraftfullt verktyg för bättre resultat. Det används med stor framgång inom industrin. Nyckelordet är att lära av de bästa. Mina Benchmarkingkunder får varje kvartal information om resandeutvecklingen jämfört med samma tid föregående år. De får också en Benchmarkingpärm full med nyckeltal, register över kontaktpersoner och lämpliga konsulter mm. I denna pärm identifieras de bästa Benchmarkingstäderna. I denna pärm kan man också grovt utläsa vad man själv bör vidta för förändringar för att förbättra sitt eget resultat. Alltså till en låg kostnad och på ett mycket effektivt sätt hålla sig välinformerad om utveckling, resultat och åtgärder. Huvudmål: - Öka resandet och förbättra ekonomin i skånsk och skandinavisk stadsbusstrafik.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 7 No. 1 (2000): Proceedings from the Annual Transport Conference at Aalborg University
Interface mellem trafikmodellen VISUM og simuleringsmodellen VISSIM
Creators: name: Rasmussen, Søren Frost
name: Jørgensen, Lars
Publisher: name: Proceedings from the Annual Transport Conference at Aalborg University
Year: 2004

description: Trafikmodeller kan opdeles i makroskopiske og mikroskopiske modeller, hvor der traditionelt ikke er sammenhæng mellem de to modeltyper. En undtagelse er dog modelkomplekset VISUM/VISSIM, hvor der er oprettet et interface mel-lem de to modeltyper. I den makroskopiske VISUM model opstilles en model af det overordnede vej-net inkl. strækningshastigheder, antal spor, samt svingbaner og signalplaner i kryds. I VISUM beskrives trafikken ud fra turoplysninger på OD-matrix form. Matricerne kan valideres og kalibreres automatisk i forhold til indlæste tællin-ger. Data i VISUM modellen kan automatisk overføres til den mikroskopiske simu-leringsmodel VISSIM. Fordelene ved dette er blandt andet at det er meget tids-besparende for opstilling af VISSIM modeller. Desuden er det muligt at skære mindre områder ud af VISUM modelvejnettet for detailanalyser af trafikafvik-lingen i VISSIM. Dette gør modelkomplekset meget fleksibelt, idet beregninger med VISUM modellen kan benyttes til at udpege områder, hvor det vil være relevant at analysere trafikafviklingen i VISSIM. På trafikdage i Ålborg 2004 vil COWI præsentere erfaringer med anvendelse af interfacet mellem de to modeller. COWI bruger interfacet i flere projekter.
description: Proceedings from the Annual Transport Conference at Aalborg University, Vol. 1 No. 1 (2004): Proceedings from the Annual Transport Conference at Aalborg University
Ambiguity in the Cross-Section of Expected Returns: An Empirical Assessment
Creators: name: Thimme, Julian
name: Völkert, Clemens
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Earth and Environmental Sciences
subject: Plant Biology
subject: FOS: Biological sciences
subject: Science Policy
subject: Cancer
subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Biotechnology

description: This article estimates and tests the smooth ambiguity model of Klibanoff, Marinacci, and Mukerji based on stock market data. We introduce a novel methodology to estimate the conditional expectation, which characterizes the impact of a decision maker’s ambiguity attitude on asset prices. Our point estimates of the ambiguity parameter are between 25 and 60, whereas our risk aversion estimates are considerably lower. The substantial difference indicates that market participants are ambiguity averse. Furthermore, we evaluate if ambiguity aversion helps explaining the cross-section of expected returns. Compared with Epstein and Zin preferences, we find that incorporating ambiguity into the decision model improves the fit to the data while keeping relative risk aversion at more reasonable levels. Supplementary materials for this article are available online.