Low-Mass Diffraction at the LHC

The expected resonance structure for the low-mass single diffractive states from a Regge-dual model elaborated paper by the present authors in a previous is predicted. Estimates for the observable low-mass single diffraction dissociation (SDD) cross sections and efficiencies for single diffractive events simulated by PYTHIA 6.2 as a function of the diffractive mass are given.Comment: 8 pages, 9 figures. Minor changes. To be published in the Modern Physics Letters

A model of management academics' intentions to influence values

Business schools face increased criticism for failing in the teaching of management studies to nurture their students’ values. Assuming that individual academics play an important role in shaping the value-related influence of business schools, I model management academics’ intentions to influence values. The suggested model encompasses academics’ economic and social values as internal variables, as well as perceived support for attempting to influence values and academic tenure as social and structural variables. A test with empirical data from 1,254 management academics worldwide reveals that perceived external support is most relevant for explaining intentions. Moreover, academics’ social values, but not their economic ones, contribute to an explanation of their intentions to influence values. The results reveal how important it is for academics to believe that their colleagues, higher education institutions, and other stakeholders support their value-related behavioral intentions

Exploring the relationship between media coverage and participation in entrepreneurship : initial global evidence and research implications

Using a set of variables measured in the Global Entrepreneurship Monitor (GEM) study, our empirical investigation explored the influence of mass media through national culture on national entrepreneurial participation rates in 37 countries over 4 years (2000 to 2003). We found that stories about successful entrepreneurs, conveyed in mass media, were not significantly associated with the rate of nascent (opportunity searching) or the rate of actual (business activities commenced up to 3 months old) start-up activity, but that there was a significant positive association between the volume of entrepreneurship media stories and a nation&rsquo;s volume of people running a young business (that is in GEM terminology, a business aged greater than 3 but less than 42 months old). More particularly, such stories had strong positive association with opportunity oriented operators of young businesses. Together, these findings are compatible with what in the mass communications theory literature may be called the &lsquo;reinforcement model&rsquo;. This argues that mass media are only capable of reinforcing their audience&rsquo;s existing values and choice propensities but are not capable of shaping or changing those values and choices. In the area covered by this paper, policy-makers are committing public resources to media campaigns of doubtful utility in the absence of an evidence base. A main implication drawn from this study is the need for further and more sophisticated investigation into the relationship between media coverage of entrepreneurship, national culture and the rates and nature of people&rsquo;s participation in the various stages of the entrepreneurial process.<br /

Soil Microbial Community Changes in Wooded Mountain Pastures due to Simulated Effects of Cattle Grazing

The effect of cattle activity on pastures can be subdivided into three categories of disturbances: herbage removal, dunging and trampling. The objective of this study was to assess separately or in combination the effect of these factors on the potential activities of soil microbial communities and to compare these effects with those of soil properties and plant composition or biomass. Controlled treatments simulating the three factors were applied in a fenced area including a light gradient (sunny and shady situation): (i) repeated mowing; (ii) trampling; (iii) fertilizing with a liquid mixture of dung and urine. In the third year of the experiment, community level physiological profiles (CLPP) (Biolog Ecoplates¿) were measured for each plots. Furthermore soil chemical properties (pH, total organic carbon, total nitrogen and total phosphorus), plant species composition and plant biomass were also assessed. Despite differences in plant communities and soil properties, the metabolic potential of the microbial community in the sunny and in the shady situations were similar. Effects of treatments on microbial communities were more pronounced in the sunny than in the shady situation. In both cases, repeated mowing was the first factor retained for explaining functional variations. In contrast, fertilizing was not a significant factor. The vegetation explained a high proportion of variation of the microbial community descriptors in the sunny situation, while no significant variation appeared under shady condition. The three components of cattle activities influenced differently the soil microbial communities and this depended on the light conditions within the wooded pasture. Cattle activities may also change spatially at a fine scale and short-term and induce changes in the microbial community structure. Thus, the shifting mosaic that has been described for the vegetation of pastures may also apply for below-ground microbial communities

Tuhat tarinaa lasten ja nuorten syrjäytymisestä:lasten ja nuorten syrjäytyminen sosiaalihuollon asiakirjojen valossa

Abstract The study aimed at describing and investigating the quality and dynamics of the problem of exclusion among children and young people in the light of social care documents. The sample consisted of the documents on 990 customers of child welfare and income support services aged below 25 in 1992–1997 as descriptions of the children’s and young persons’ situations and courses of life in Finland after the depression of the early 1990’s. The attention focused especially on the various problems in the children’s and young people’s welfare as a basis for social services customership and as descriptors of their exclusion. The life situations of social services customers were generally determined by their unstable position in the labour market and the limitations of their financial resources, in addition to which various subgroups in the sample had their own problems. In child welfare, customership was often based on the mother’s alcohol/drug use or mental problems and neglect of child care or the young person’s problems with school and alcohol or drugs. In terms of income support, the need for support was most often based on the young person’s exclusion from working life and on the related financial difficulties. Important forms of support in both child welfare and income support included customer counselling and financial support. Although social services customership was related particularly to accumulated problems, the customers did not form a uniform group. The documents revealed nine types of customership based on their life control and dimensions of exclusion: life control, integration, minor customership, elimination, danger of exclusion, serious danger of exclusion, marginalisation, segregation and exclusion. The differences between them were connected with differences in the quality and degree of the customers’ welfare problems and in the customers’ power of influence and possibilities for social support. The closer to life control a person’s type of customership was situated, the more she or he could exert an influence using his/her own resources or the support of his/her close community. Moving towards exclusion, the network of control around the customer tightened and the situation was determined ever more clearly by problems, obligations and control. The various types of customership described the customers’ life situations at certain moments, but also at the various stages of the exclusion or survival process and when the life situations were viewed from different perspectives. The exclusion of children and young people was manifested in the current study above all as danger of exclusion. It was about a nightmare scenario of the postmodern society following the both/and logic which was connected not only with the various problems of the social services customers but also with the exclusion of children and adolescents from what we see as normal growth and development. Children who were customers of the social services did not necessarily have the opportunity to be children, and young people did not necessarily grow into adults. The threats of exclusion and possibilities of survival had an impact on the children’s and adolescents’ lives on a situation-by-situation basis and also simultaneously depending on which and whose viewpoint the situation was viewed from. Light and shadow penetrated each other in their life as their life situations took shape in the dimensions of life control and exclusion.Tiivistelmä Tutkimuksen tarkoituksena oli kuvata ja selvittää lasten ja nuorten syrjäytymisongelman laatua ja dynamiikkaa sosiaalihuollon asiakirjojen valossa. Tutkimusaineistona olivat 990 alle 25-vuotiaan sosiaalihuollon lastensuojelun tai toimeentulotuen asiakkaan asiakirjat vuosilta 1992–1997 kuvauksina lasten ja nuorten elämäntilanteista ja elämänkulusta 1990-luvun alun laman jälkeisessä Suomessa. Huomion kohteina olivat erityisesti lasten ja nuorten erilaiset hyvinvoinnin ongelmat sosiaalihuollon asiakkuuden perusteina ja lasten ja nuorten syrjäytymisen kuvaajina. Sosiaalihuollon asiakkaiden elämäntilanteita määrittivät yleisesti epävakaa työmarkkina-asema ja taloudellisten resurssien rajallisuus, joiden lisäksi kohdejoukon eri osaryhmillä oli omia ongelmiaan. Lastensuojelussa asiakkuutta perusteltiin usein äidin päihde- ja mielenterveysongelmilla ja lapsenhoidon laiminlyönnillä tai nuoren koulu- ja päihdeongelmilla. Toimeentulotuessa nuorten tuen tarpeen perusteena olivat puolestaan useimmiten nuorten työelämän ulkopuolelle jääminen ja siihen liittyvät taloudelliset vaikeudet. Keskeisiä tukimuotoja sekä lastensuojelussa että toimeentulotuessa olivat asiakkaan neuvonta ja taloudellinen tuki. Vaikka sosiaalihuollon asiakkuus liittyi erityisesti kasautuneisiin ongelmiin, eivät asiakkaat olleet yhtenäinen ryhmä. Asiakirja-aineistosta löytyi yhdeksän elämänhallinnan ja syrjäytymisen ulottuvuudella jäsentyvää asiakkuustyyppiä: elämänhallinta, integraatio, pikkuasiakkuus, karsiutuminen, syrjäytymisvaara, vakava syrjäytymisvaara, marginalisaatio, segregaatio ja syrjäytyminen. Niiden väliset erot liittyivät eroihin asiakkaiden hyvinvoinnin ongelmien laadussa ja asteessa sekä asiakkaiden vaikutusmahdollisuuksissa ja mahdollisuuksissa sosiaaliseen tukeen. Mitä lähemmäksi elämänhallintaa asiakkuustyyppi sijoittui, sitä enemmän asiakas pystyi vaikuttamaan asioihin joko omien voimavarojensa tai lähiyhteisön tuen turvin. Kohti syrjäytymistä siirryttäessä kontrollin verkko asiakkaan ympärillä kiristyi ja tilannetta määrittivät yhä selvemmin ongelmat, pakot ja kontrolli. Eri asiakkuustyypit kuvasivat asiakkaiden elämäntilanteita tiettynä hetkenä, mutta myös syrjäytymis- ja selviytymisprosessin eri vaiheissa ja elämäntilanteita eri näkökulmista tarkasteltaessa. Lasten ja nuorten syrjäytyminen näyttäytyi tutkimuksessa ennen muuta syrjäytymisvaarana. Siinä oli kyse myöhäismodernin yhteiskunnan sekä–että logiikkaa noudattavasta uhkakuvasta, joka liittyi paitsi sosiaalihuollon asiakkaiden erilaisiin ongelmiin, myös lasten ja nuorten syrjäytymiseen normaalina pidettävästä kasvusta ja kehityksestä. Sosiaalihuollon asiakkaina olevat lapset eivät välttämättä saaneet olla lapsia ja nuoret eivät välttämättä kasvaneet aikuisiksi. Syrjäytymisen uhat ja selviytymisen mahdollisuudet vaikuttivat lasten ja nuorten elämään tilanteittain ja myös samanaikaisesti riippuen siitä, mistä ja kenen näkökulmasta tilannetta tarkasteltiin. Valo ja varjo läpäisivät lasten ja nuorten elämässä toisiaan heidän elämäntilanteidensa jäsentyessä elämänhallinnan ja syrjäytymisen ulottuvuudella