North west direct seeding survey

Non-Peer Reviewe

Forest inventory on individual tree level using stereo matching of aerial images taken from a drone

Upprättandet av skogsbruksplaner har utfört på liknades sätt under flera decennier, dagens utveckling inom drönartekniken kan nu möjligen förändra detta. Målet med denna studie var att undersöka möjligheten att skatta skogliga variabler på avdelningsnivå genom stickprov av träd kombinerat med heltäckande skattningar på enskilda träd nivå från stereomatchade flygbilder tagna med drönare. Studien utfördes med hjälp av flygbilder och inventeringsdata från studieområdet Remningstrop. Resultatet visar att det är möjligt att skatta medelhöjden för ett bestånd med ett medelfel på 13,0 %. Resultatet för medeldiameter och total volym är däremot högre med 17,0 % respektive 28,1 %. Skattningsnoggrannheten skulle sannolikt blivit bättre om fjärranalysdatat för respektive träd kunnat sammanlänkats bättre med motsvarande inventeringsdata, samt om fjärranalysdatat och inventeringsdatat hade varit från samma år. De höga kraven på inventeringsdatat gör att den undersökta metoden kan vara svår att applicera i det operativa skogsbruket. iThe establishment of forest management plans has been carried out in a similar manner for decades, today’s development with drones technology can now change this. The aim of this study was to investigate the possibility of estimating forest variables on compartment level by sampling of trees combined with full individual tree crown estimates from stereo matched aerial images taken by a drone. The study was conducted using aerial images and inventory data from individual trees level from the Remningstrop study area. The result shows that it’s possible to estimate the mean height of a forest department with a RMSE of 13.0 %. The result for mean diameter and total volume, on the other hand, is higher 17.0 % and 28.1 % respectively. Among the weaknesses of the study has been that inventory data have low accuracy and precision for coordiantes and the time difference between the inventory and areial images. The high requirements for inventory data make the method difficult to apply in the operational forestry. i

Séfer Milhamah be-Shalom : tresladado de lashon ha-qodes a español ...

Copia digital. Madrid : Ministerio de Cultura. Subdirección General de Coordinación Bibliotecaria, 201

The first bite: Imaginaries, promotional publics and the laboratory grown burger

In this paper we analyse a 2013 press conference hosting the world’s first tasting of a laboratory grown hamburger. We explore this as a media event: an exceptional performative moment in which common meanings are mobilised and a connection to a shared centre of reality is offered. We develop our own theoretical contribution – the promotional public – to characterise the affirmative and partial patchwork of carefully selected actors invoked during the burger tasting. Our account draws upon three areas of analysis: interview data with the scientists who developed the burger, media analysis of the streamed press conference itself, and media analysis of the social media tail during and following the event. We argue that the call to witness an experiment is a form of promotion but that such promotional material also offers an address that invokes a public with its attendant tensions.The research leading to this publication has received funding from the European Community’s Seventh Framework Programme (FP7/2007–2013) under grant agreement number 288971 (EPINET). Neil Stephens’ involvement has also received the support of the Economic and Social Research Council (ESRC). His work is part of the Research Programme of the ESRC Genomics Network at Cesagen (ESRC Centre for Economic and Social Aspects of Genomics). Neil Stephens’ work was also supported by the Wellcome Trust (WT096541MA) and a visiting scholarship to CGS Centre for Society and Genomics in The Netherlands, May to July 2011. This support is gratefully acknowledge

Quantifying Dispersal of European Culicoides (Diptera: Ceratopogonidae) Vectors between Farms Using a Novel Mark-Release-Recapture Technique

Studying the dispersal of small flying insects such as Culicoides constitutes a great challenge due to huge population sizes and lack of a method to efficiently mark and objectively detect many specimens at a time. We here describe a novel mark-release-recapture method for Culicoides in the field using fluorescein isothiocyanate (FITC) as marking agent without anaesthesia. Using a plate scanner, this detection technique can be used to analyse thousands of individual Culicoides specimens per day at a reasonable cost. We marked and released an estimated 853 specimens of the Pulicaris group and 607 specimens of the Obsoletus group on a cattle farm in Denmark. An estimated 9,090 (8,918-9,260) Obsoletus group specimens and 14,272 (14,194-14,448) Pulicaris group specimens were captured in the surroundings and subsequently analysed. Two (0.3%) Obsoletus group specimens and 28 (4.6%) Pulicaris group specimens were recaptured. The two recaptured Obsoletus group specimens were caught at the release point on the night following release. Eight (29%) of the recaptured Pulicaris group specimens were caught at a pig farm 1,750 m upwind from the release point. Five of these were recaptured on the night following release and the three other were recaptured on the second night after release. This is the first time that movement of Culicoides vectors between farms in Europe has been directly quantified. The findings suggest an extensive and rapid exchange of disease vectors between farms. Rapid movement of vectors between neighboring farms may explain the the high rate of spatial spread of Schmallenberg and bluetongue virus (BTV) in northern Europe

Electro-osmotic flow of couple stress fluids in a microchannel propagated by peristalsis

A mathematical model is developed for electro-osmotic peristaltic pumping of a non-Newtonian liquid in a deformable micro-channel. Stokes’ couple stress fluid model is deployed to represent realistic working liquids. The Poisson-Boltzmann equation for electric potential distribution is implemented owing to the presence of an electrical double layer (EDL) in the micro-channel. Using long wavelength, lubrication theory and Debye-Huckel approximations, the linearized transformed dimensionless boundary value problem is solved analytically. The influence of electro-osmotic parameter (inversely proportional to Debye length), maximum electro-osmotic velocity (a function of external applied electrical field) and couple stress parameter on axial velocity, volumetric flow rate, pressure gradient, local wall shear stress and stream function distributions is evaluated in detail with the aid of graphs. The Newtonian fluid case is retrieved as a special case with vanishing couple stress effects. With increasing couple stress parameter there is a significant elevation in axial pressure gradient whereas the core axial velocity is reduced. An increase in electro-osmotic parameter induces both flow acceleration in the core region (around the channel centreline) and also enhances axial pressure gradient substantially. The study is relevant to simulation of novel smart bio-inspired space pumps, chromatography and medical microscale devices

Making Sense of Making Meat: Key Moments in the First 20 Years of Tissue Engineering Muscle to Make Food

Cultured/clean/cell-based meat (CM) now has a near two decade history of laboratory research, commencing with the early NASA-funded work at Touro College and the bioarts practice of the Tissue Culture and Art project. Across this period the field, or as it is now more commonly termed, the “space,” has developed significantly while promoting different visions for what CM is and can do, and the best mechanisms for delivery. Here we both analyse and critically engage with this near-twenty year period as a productive provocation to those engaged with CM, or considering becoming so. This paper is not a history of the field, and does not offer a comprehensive timeline. Instead it identifies significant activities, transitions, and moments in which key meanings and practices have taken form or exerted influence. We do this through analyzing two related themes: the CM “institutional context” and the CM “interpretative package.” The former, the institutional context, refers to events and infrastructures that have come into being to support and shape the CM field, including university activities, conferences, third sector groups, various potential funding mechanisms, and the establishment of a start-up sector. The latter, the interpretative package, refers to the constellation of factors that shape or assert how CM should be understood, including the various names used to describe it, accounts of what it will achieve, and most recently, the emergent regulatory discussions that frame its legal standing. Across the paper we argue it is productive to think of the CM community in terms of a first and second wave. The first wave was more university-based and broadly covers the period from the millennium until around the 2013 cultured burger event. The second wave saw the increasing prevalence of a start-up culture and the circuits of venture capital interest that support it. Through this analysis we seek to provoke further reflection upon how the CM community has come to be as it is, and how this could develop in the future.Economic and Social Research Council; The Seventh Framework Programme; Wellcome Trust; Centre for Society and Genomics Visiting Scholarship; King's College London; KCL Mary Clark Travel Bursary; Our Planet Our Health (Livestock, Environment and People–LEAP); The Netherlands Organization for Scientific Research; Ministry of Economic Affair

Transgenesis in Animal Agriculture: Addressing Animal Health and Welfare Concerns

The US Food and Drug Administration’s final Guidance for Industry on the regulation of transgenesis in animal agriculture has paved the way for the commercialization of genetically engineered (GE) farm animals. The production-related diseases associated with extant breeding technologies are reviewed, as well as the predictable welfare consequences of continued emphasis on prolificacy at the potential expense of physical fitness. Areas in which biotechnology could be used to improve the welfare of animals while maintaining profitability are explored along with regulatory schema to improve agency integration in GE animal oversight

Nyttan av revision –En kvalitativ studie kring vilka faktorer som påverkar aktiebolag utan revisionsplikt att ha revision

Bakgrund och problem: Sedan 2010 gäller det att ett aktiebolag som understiger vissa gränsvärden inte längre är förpliktade att bli granskade av en revisor. Det har rått delade meningar vilken påverkan detta kommer ha på företagen och det har även uttryckts oro för förändringarnas negativa påverkningar. Syftet med förändringarna var att minska kostnaderna för mindre svenska aktiebolag men trots möjligheten att välja bort revisorn har ett stort antal av bolagen kvar sin revisor. Syfte: Uppsatsens syfte är att undersöka och förklara vilka faktorer som kan påverka svenska aktiebolag som inte har revisionsplikt att använda sig av revision. Avgränsningar: Vi har valt att avgränsa uppsatsen till att undersöka företag med en omsättning över 500 00 i göteborgsregionen. De intervjuade revisorerna är alla anställda på någon av de stora revisionsbolagen, varav en är stationerad i Stockholm och tre i Göteborg. Metod: Studien genomförs med ett kvalitativt tillvägagångssätt där företag som inte har revisionsplikt men inte revisor intervjuats såväl som revisorer och en redovisningskonsult intervjuats. Intervjuerna är genomförda närvarande eller via telefon. Resultatet av de genomförda intervjuerna har analyserats med hjälp den teori som presenteras i referensramen. Resultat och slutsatser: Fem huvudsakliga faktorer har presenterats som motiv för företag att använda sig av frivillig revision. Faktorerna som intervjuobjekten presenterat kan härledas till ägarstrukturen, kapitalbehov, okunskap, behov av rådgivning och en vilja att visa intressenter att företaget är en seriös aktör. Förslag till fortsatt forskning: En nationell, kvantitativ, studie som undersöker vilket behov mindre bolag har av revisio

Conférence à la mémoire de Helene Hudson Congrès de l’ACIO 2008

Une femme sur neuf développera un cancer du sein au cours de sa vie (Société canadienne du cancer, 2007). Le cancer du sein héréditaire représente seulement de cinq à dix pour cent de tous les cancers du sein; cependant, les femmes porteuses d’une seule mutation génétique de pénétrance élevée ont de quarante à quatre-vingts pour cent de chances de développer un cancer du sein (Nat. Rev. Cancer, 2007). La majorité de ces cancers du sein surviennent chez les femmes âgées de moins de cinquante ans. C’est en 1994 que la mutation génétique BRCA1 a été signalée pour la première fois tandis que la mutation génétique BRCA2 l’a été en 1995. Ce sont souvent les hommes qui sont porteurs de la mutation BRCA2 laquelle est responsable d’approximativement six pour cent des cancers du sein masculins. Les femmes porteuses de cette mutation génétique ont un risque à vie de développer le cancer du sein situé entre cinquante et quatre-vingt-cinq pour cent, un risque de développer un second cancer du sein situé entre trente et cinquante pour cent et un risque de cancer de l’ovaire variant entre dix et vingt pour cent. Chaque parent porteur de la mutation génétique BRCA2 a cinquante pour cent de chances de transmettre cette mutation génétique à ses enfants (NCI, 2006). Il est difficile de prévoir l’impact émotionnel qu’aura la prise de connaissance d’une telle information sur le risque de cancer. Lorsqu’on fournit à la personne concernée de l’information sur la chirurgie visant à réduire les risques, sur la chimioprévention, sur l’évitement des risques de cancer et sur l’augmentation de la fréquence de dépistage, comment cette personne prend-elle des décisions? Je vous invite à marcher à mes côtés tandis que je relate comment ma famille a découvert que nous étions porteurs de la mutation génétique fondatrice d’Islande, les pas que nous avons faits ensemble durant le processus de dépistage et enfin, le processus décisionnel suivi par les membres de la famille ayant obtenu un résultat positif au test génétique. Nous allons diriger notre attention sur ma soeur Rita—des journées ordinaires, un être extraordinaire