775 resultados para Planzen-Tier Interaktion, Lebensgemeinschaft


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DCC (deleted in colorectal cancer)-the receptor of the netrin-1 neuronal guidance factor-is expressed and is active in the central nervous system (CNS) during development, but is down-regulated during maturation. The substantia nigra contains the highest level of netrin-1 mRNA in the adult rodent brain, and corresponding mRNA for DCC has also been detected in this region but has not been localized to any particular neuron type. In this study, an antibody raised against DCC was used to determine if the protein was expressed by adult dopamine neurons, and identify their distribution and projections. Significant DCC-immunoreactivity was detected in midbrain, where it was localized to ventrally displaced A9 dopamine neurons in the substantia nigra, and ventromedial A10 dopamine neurons predominantly situated in and around the interfascicular nucleus. Strong immunoreactivity was not detected in dopamine neurons found elsewhere, or in non-dopamine-containing neurons in the midbrain. Terminal fields selectively labeled with DCC antibody corresponded to known nigrostriatal projections to the dorsolateral striatal patches and dorsomedial shell of the accumbens, and were also detected in prefrontal cortex, septum, lateral habenular and ventral pallidum. The unique distribution of DCC-immunoreactivity in adult ventral midbrain dopamine neurons suggests that netrin-1/DCC signaling could function in plasticity and remodeling previously identified in dopamine projection pathways. In particular, a recent report that DCC is regulated through the ubiquitin-proteosome system via Siah/Sina proteins, is consistent with a potential involvement in genetic and sporadic forms of Parkinson's disease. (c) 2005 IBRO. Published by Elsevier Ltd. All rights reserved.

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We introduce a type of 2-tier convolutional neural network model for learning distributed paragraph representations for a special task (e.g. paragraph or short document level sentiment analysis and text topic categorization). We decompose the paragraph semantics into 3 cascaded constitutes: word representation, sentence composition and document composition. Specifically, we learn distributed word representations by a continuous bag-of-words model from a large unstructured text corpus. Then, using these word representations as pre-trained vectors, distributed task specific sentence representations are learned from a sentence level corpus with task-specific labels by the first tier of our model. Using these sentence representations as distributed paragraph representation vectors, distributed paragraph representations are learned from a paragraph-level corpus by the second tier of our model. It is evaluated on DBpedia ontology classification dataset and Amazon review dataset. Empirical results show the effectiveness of our proposed learning model for generating distributed paragraph representations.

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By contrast to the far-reaching devolution settlements elsewhere in the UK, political agreement on the governance of England outside London remains unsettled. There is cross- party consensus on the need to 'decentre down' authority to regions and localities, but limited agreement on how this should be achieved. This paper explores the welter of initiatives adopted by the recent Labour government that were ostensibly designed to make the meso-level of governance more coherent, accountable and responsive to meeting territorial priorities. Second, it explores the current Conservative-Liberal Democrat Coalition's programme of reform that involves the elimination of Labour's regional institutional architecture and is intended to restore powers to local government and communities and promote local authority co-operation around sub-regions. Labour's reforms were ineffective in achieving any substantial transfer of authority away from Whitehall and, given the Coalition's plans to cut public expenditure, the likelihood of any significant recalibration in central-local relations also appears improbable. © 2012 Copyright Taylor and Francis Group, LLC.

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A spring 2016 report about public computer usage on the first floor of Perkins and Bostock libraries. This report includes data from survey questions, an observational study, and transaction logs. The report also includes recommendations for changes based on the data collected.

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Emergence in the sociology of Mead: Process, interaction and the conditions ofsocial life. Within sociology, and especially in the symbolic interaction genre thereof, emergence have been used in order to analyze the process between different dichotomies such as structure and agency, individual and collective, improvisation and the pre-determined as well as the relationship between a now, a past and a present. The aim of this article is to, based on mentioned dichotomies, discuss the possibilities and the limitations of emergence. In terms of possibilities emergence can be used as an analytical and theoretical tool for analyzing the process between different social phenomena. In terms of limitations, emergence could (and have been) criticized for not acknowledging the pre-conditioned aspects of social life. Hence, this article is concluded in a discussion on how to integrate pre-conditioned aspects of social life, such as power, dominance and subordination in the analysis of the emergent and dynamic social life.

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Enligt ett sociokulturellt perspektiv är språk och tanke varandras förutsättningar, samtidigt som kunskaper och språk utvecklas i samspel med andra. Muntlig interaktion är därmed viktig för elevers språk- och kunskapsutveckling men avgörande för flerspråkiga elever. Detta ställer höga krav på lärarens utformning av undervisning samt det utrymme som ges för muntlig interaktion. Skolinspektionens granskning visar dock att det råder stor brist gällande undervisning i det flerspråkiga klassrummet, vilket hämmar flerspråkiga elevers språk- och kunskapsutveckling. Syftet med denna litteraturstudie är att undersöka, sammanställa och presentera forskning som behandlar muntlig interaktion i det flerspråkiga klassrummet. Frågeställningarna som relaterar till syftet utgår ifrån det sociokulturella perspektivet och lyder: Vilken betydelse har muntlig interaktion för flerspråkiga elevers språk- och kunskapsutveckling? Vilka faktorer påverkar utrymmet för muntlig interaktion i det flerspråkiga klassrummet? Studien är en litteraturstudie som bygger på nationell och internationell forskning i form av vetenskapliga artiklar, avhandlingar, konferensbidrag, forskningsrapport samt vetenskapligt baserade böcker.   Resultatet visar att muntlig interaktion har betydelse för flera olika aspekter inom språk- och kunskapsutveckling, bland annat för den kognitiva utvecklingen och för identitetsskapande processer. Vidare framgår att lärarens inställning, val av interaktionsformer samt gruppformatering är avgörande faktorer för hur utrymmet för muntlig interaktion möjliggörs och för flerspråkiga elevers möjlighet att nå språk- och kunskapsutveckling.

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Call Level Interfaces (CLI) play a key role in business tiers of relational and on some NoSQL database applications whenever a fine tune control between application tiers and the host databases is a key requirement. Unfortunately, in spite of this significant advantage, CLI are low level API, this way not addressing high level architectural requirements. Among the examples we emphasize two situations: a) the need to decouple or not to decouple the development process of business tiers from the development process of application tiers and b) the need to automatically adapt business tiers to new business and/or security needs at runtime. To tackle these CLI drawbacks, and simultaneously keep their advantages, this paper proposes an architecture relying on CLI from which multi-purpose business tiers components are built, herein referred to as Adaptable Business Tier Components (ABTC). Beyond the reference architecture, this paper presents a proof of concept based on Java and Java Database Connectivity (an example of CLI).

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Call Level Interfaces (CLI) are low level API that play a key role in database applications whenever a fine tune control between application tiers and the host databases is a key requirement. Unfortunately, in spite of this significant advantage, CLI were not designed to address organizational requirements and contextual runtime requirements. Among the examples we emphasize the need to decouple or not to decouple the development process of business tiers from the development process of application tiers and also the need to automatically adapt to new business and/or security needs at runtime. To tackle these CLI drawbacks, and simultaneously keep their advantages, this paper proposes an architecture relying on CLI from which multi-purpose business tiers components are built, herein referred to as Adaptable Business Tier Components (ABTC). This paper presents the reference architecture for those components and a proof of concept based on Java and Java Database Connectivity (an example of CLI).

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Memes stellen ein modernes Bildmedium dar. Im Beitrag wird die Frage verfolgt, ob Memes mit ihrem inhärenten Humor innerhalb des Unterrichts auch als Bildungsmedium dienen und didaktisch genutzt werden können. Dazu wird Humor als generalisiertes Kommunikationsmedium pädagogischer Interaktion beschrieben, um Memes als moderne Bildmedien - in ihrer Wirkung als humorvolle Form der affektiven und kognitiven Inkongruenzstiftung - zur Entwicklung von Fachkonzepten im Physikunterricht fassen zu können. (DIPF/Orig.)

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The increased emphasis within Europe on the role of second-tier cities has implications for the ways in which these urban centres are considered within national spatial planning strategies. In centralised, monocentric states like Ireland, there has been a general ambivalence towards urban policy for cities outside the capital city, and historically this has prevented the development of a strong, diversified urban hierarchy undermining prospects for balanced regional development. This paper examines the extent to which a new found emphasis on Ireland’s second-tier cities which emerged in the ‘Gateways’ policy of the National Spatial Strategy (NSS, 2002) was matched by subsequent political and administrative commitment to facilitate the development of these urban centres. Following a discussion of the position of second-tier cities in an international context and a brief overview of recent demographic and economic trends, the paper assesses the relative performance of Ireland’s second-tier cities in influencing development trends, highlighting a comprehensive failure to deliver compact urban growth. In this context, the paper then discusses the implications of current development plans for the second-tier cities and proposals for Irish local government reform for securing compact urban development.

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This graph shows the homestead exemption revenues and expenditures from FY 07-08 to FY 17-18.