Lippu, uhri, kansakunta : Ryhmäkokemukset ja -rajat Suomessa 1917 1945

This dissertation deals with the notions of sacrifice and violence in connection with the Fin¬nish flag struggles between 1917 and 1945. The study begins with the basic idea that sacrificial thinking is a key element in nationalism and the social cohesion of large groups. The method used in the study combines anthropological notions of totemism with psychoanalytical object relation theory. The aim is to explore the social and psychological elements of the Finnish national flag and the workers flags during the times of crisis and nation building. The phenomena and concepts addressed include self-sacrifice, scapegoating, remembrance of war, inclusion, and exclusion. The research is located at the intersection of nationalism studies and the cultural history of war. The analysis is based primarily on the press debates, public speeches and archival sources of the civic organizations that promoted the Finnish flag. The study is empirically divided into three sections: 1) the years of the Revolution and the Civil War (1917 1918), 2) the interwar period (1919 1938), and 3) the Second World War (1939 1945). The research demonstrates that the modern national flags and workers flags in Finland maintain certain characteristics of primitive totems. When referred to as a totem the flag means an emotionally charged symbol, a reservoir of the collective ideals of a large group. Thus the flag issue offers a path to explore the perceptions and memory of sacrifice and violence in the making of the First Republic . Any given large group, for example a nation, must conceptually pursue a consensus on its past sacrifices. Without productive interpretation sacrifice represents only meaningless violence. By looking at the passions associated with the flag the study also illuminates various group identities, boundaries and crossings of borders within the Finnish society at the same time. The study shows further that the divisive violence of the Civil War was first overcome in the late 1930s when the social democrats adopted a new perception of the Red victims of 1918 they were seen as part of the birth pains of the nation, and not only the martyrs of class struggle. At the same time the radical Right became marginalized. The study also illuminates how this development made the Spirit of the Winter War possible, a genuine albeit brief experience of horizontal brother and sisterhood, and how this spirit was reflected in the popular adoption of the Finnish flag. The experience was not based only on the external and unifying threat posed by the Soviet Union: it was grounded in a sense of unifying sacrifice which reflected a novel way of understanding the nation and its past sacrifices. Paradoxically, the newly forged consensus over the necessity and the rewards of the common sacrifices of the Winter War (1939 1940) made new sacrifices possible during the Continuation War (1941 1944). In spite of political discord and war weariness, the concept of a unified nation under the national flag survived even the absurdity of the stationary war phase. It can be said that the conflict between the idea of a national community and parliamentary party politics dissolved as a result of the collective experience of the Second World War.

Paimen vailla hiippakuntaa : Kenttäpiispan viran synty ja vaikutus sotilaspapiston asemaan Suomen puolustusvoimissa ja kirkossa vuosina 1939 - 1944

The main purpose of this research is to shed light on the factors that gave rise to the office of Field Bishop in the years 1939-1944. How did military bishophood affect the status of the head of military pastoral care and military clergy during these years? The main sources of my research are the collections in the Finnish National Archives, and I use a historical-qualitative method. The position of the military clergy was debated within both the Church and the Defence Forces before 1939. At that stage, Church law did not yet recognize the office of the leading military priest, the Field Dean. There had been a motion in 1932 to introduce the office of a military bishop, but the bishops' synod blocked it. The concept of Field Bishop appeared for the first time in 1927 in a Finnish military document, which dealt with pastoral care in the Polish military. The Field Dean in Finland had regularly proposed improvements to the salary of the military clergy before the Winter War. After the Winter War, arguments were made for strengthening the position of the military clergy: these arguments were based on the increased respect shown towards this clergy, especially due to their role in the care of the fallen, which had become their task during the war. Younger members of the military clergy in particular supported the demands to improve their position within the Church and the army. The creation of a Field Bishop was perceived as strengthening the whole military clergy, as the Field Bishop was envisioned as a bishop within the Church and a general within the Defence Forces. During that time the Field Dean was still without any military rank. The idea of a Field Bishop was recommended to Mannerheim in June 1940, after which the Defence Forces lent their support to the cause. The status of the military clergy, in Church law, made it to the agenda of the Church council in January 1941, thanks largely to the younger priests' group influence and Mannerheim's leverage. The bishops opposed the notion of a Field Bishop mostly on theological grounds but were ready to concede that the position the Field Dean in Church law required further defining. The creation of the office of Field Bishop was blocked in the Church law committee report issued close to the beginning of the Continuation War. The onset of that war, however, changed the course of events, as the President of the Republic appointed Field Dean Johannes Björklund as Field Bishop. Speculation has abounded about Mannerheim's role in the appointment, but the truth of the matter is not clear. The title of Field Bishop was used to put pressure on the Church, and, at the same time, Mannerheim could remain detached from the matter. Later, in September 1941, the Church council approved the use of the Field Bishop title to denote the head of military pastoral care in Church law, and Field Bishops were assigned some of the duties formerly pertaining to bishops. Despite all expectations and hopes, the new office of Field Bishop did not affect the status of the military clergy within the Defence Forces, as no ranks were established for them, and their salary did not improve. However the office of the Field Bishop within Army HQ was transformed from a bureau into a department in the summer of 1942. At the beginning of the Continuation War, the Field Bishop was criticized by certain military and Church clergy for favouring Russian Orthodox Christians in Eastern Karelia. Björklund agreed in principle with most of the Lutheran clergy on the necessity of Lutheranizing East Karelia but had to take into account the realities at Army HQ. As well, at the same time the majority of the younger clergy were serving in the army, and there was a lack of parish priests on the home front. Bishop Lehtonen had actually expressed the wish that more priests could have been released from the front to serve in local parishes. In his notes Lehtonen accused Björklund of trying to achieve the position of Field Bishop by all possible means. However, research has revealed a varied group of people behind the creation of the office of Field Bishop, including in particular younger clergy and the Defence Forces.

Relationships in food chains: an empirical examination of trust, commitment and communication

This report derives from the EU funded research project “Key Factors Influencing Economic Relationships and Communication in European Food Chains” (FOODCOMM). The research consortium consisted of the following organisations: University of Bonn (UNI BONN), Department of Agricultural and Food Marketing Research (overall project co-ordination); Institute of Agricultural Development in Central and Eastern Europe (IAMO), Department for Agricultural Markets, Marketing and World Agricultural Trade, Halle (Saale), Germany; University of Helsinki, Ruralia Institute Seinäjoki Unit, Finland; Scottish Agricultural College (SAC), Food Marketing Research Team - Land Economy Research Group, Edinburgh and Aberdeen; Ashtown Food Research Centre (AFRC), Teagasc, Food Marketing Unit, Dublin; Institute of Agricultural & Food Economics (IAFE), Department of Market Analysis and Food Processing, Warsaw and Government of Aragon, Center for Agro-Food Research and Technology (CITA), Zaragoza, Spain. The aim of the FOODCOMM project was to examine the role (prevalence, necessity and significance) of economic relationships in selected European food chains and to identify the economic, social and cultural factors which influence co-ordination within these chains. The research project considered meat and cereal commodities in six different European countries (Finland, Germany, Ireland, Poland, Spain, UK/Scotland) and was commissioned against a background of changing European food markets. The research project as a whole consisted of seven different work packages. This report presents the results of qualitative research conducted for work package 5 (WP5) in the pig meat and rye bread chains in Finland. Ruralia Institute would like to give special thanks for all the individuals and companies that kindly gave up their time to take part in the study. Their input has been invaluable to the project. The contribution of research assistant Sanna-Helena Rantala was significant in the data gathering. FOODCOMM project was coordinated by the University of Bonn, Department of Agricultural and Food Market Research. Special thanks especially to Professor Monika Hartmann for acting as the project leader of FOODCOMM.

Molecular Dynamics Simulations of Homogeneous Nucleation

Nucleation is the first step in a phase transition where small nuclei of the new phase start appearing in the metastable old phase, such as the appearance of small liquid clusters in a supersaturated vapor. Nucleation is important in various industrial and natural processes, including atmospheric new particle formation: between 20 % to 80 % of atmospheric particle concentration is due to nucleation. These atmospheric aerosol particles have a significant effect both on climate and human health. Different simulation methods are often applied when studying things that are difficult or even impossible to measure, or when trying to distinguish between the merits of various theoretical approaches. Such simulation methods include, among others, molecular dynamics and Monte Carlo simulations. In this work molecular dynamics simulations of the homogeneous nucleation of Lennard-Jones argon have been performed. Homogeneous means that the nucleation does not occur on a pre-existing surface. The simulations include runs where the starting configuration is a supersaturated vapor and the nucleation event is observed during the simulation (direct simulations), as well as simulations of a cluster in equilibrium with a surrounding vapor (indirect simulations). The latter type are a necessity when the conditions prevent the occurrence of a nucleation event in a reasonable timeframe in the direct simulations. The effect of various temperature control schemes on the nucleation rate (the rate of appearance of clusters that are equally able to grow to macroscopic sizes and to evaporate) was studied and found to be relatively small. The method to extract the nucleation rate was also found to be of minor importance. The cluster sizes from direct and indirect simulations were used in conjunction with the nucleation theorem to calculate formation free energies for the clusters in the indirect simulations. The results agreed with density functional theory, but were higher than values from Monte Carlo simulations. The formation energies were also used to calculate surface tension for the clusters. The sizes of the clusters in the direct and indirect simulations were compared, showing that the direct simulation clusters have more atoms between the liquid-like core of the cluster and the surrounding vapor. Finally, the performance of various nucleation theories in predicting simulated nucleation rates was investigated, and the results among other things highlighted once again the inadequacy of the classical nucleation theory that is commonly employed in nucleation studies.

M.tuberculosis Pantothenate Kinase: Dual Substrate Specificity and Unusual Changes in Ligand Locations

Kinetic measurements of enzyme activity indicate that type I pantothenate kinase from Mycobacterium tuberculosis has dual substrate specificity for ATP and GTP, unlike the enzyme from Escherichia coli, which shows a higher specificity for ATP. A molecular explanation for the difference in the specificities of the two homologous enzymes is provided by the crystal structures of the complexes of the M. tuberculosis enzyme with (1) GMPPCP and pantothenate, (2) GDP and phosphopantothenate, (3) GDP, (4) GDP and pantothenate, (5) AMPPCP, and (6) GMPPCP, reported here, and the structures of the complexes of the two enzymes involving coenzyme A and different adenyl nucleotides reported earlier. The explanation is substantially based on two critical substitutions in the amino acid sequence and the local conformational change resulting from them. The structures also provide a rationale for the movement of ligands during the action of the mycobacterial enzyme. Dual specificity of the type exhibited by this enzyme is rare. The change in locations of ligands during action,observed in the case of the M. tuberculosis enzyme, is unusual, so is the striking difference between two homologous enzymes in the geometryof the binding site, locations of ligands, and specificity. Furthermore, the dual specificity of the mycobacterial enzyme appears to have been caused by a biological necessity. (C) 2010 Elsevier Ltd.All rights reserved.

Monikasvoinen TAVA-partisiippi : Tutkimus suomen TAVA-partisiipin käyttökonteksteista ja verbiliittojen kieliopillistumisesta

The multifaceted passive present participle in Finnish This study investigates the uses of the passive present participle in Finnish. The participle occurs in a variety of syntactic environments and exhibits a rich polysemy. Former descriptions have treated it as a mainly modal element, but it has several non-modal uses as well. The present study provides an overview of its uses and meanings, with the main focus on the factors which trigger the modal reading. In addition, the study contains two case studies on modal periphrastic constructions consisting of the verb 'to be' and the present passive participle, the Obligation construction, e.g., on men-tä-vä [is go-pass-ptc], and the Possiblity construction, e.g., on pelaste-tta-v-i-ssa [is save-pass-ptc-pl-ine]. The study is based on empirical data of 9000 sentences obtained from i) large collections of transcribed material from Finnish dialects, ii) a corpus of modern Finnish newspaper texts, iii) corpora of Old Finnish texts. Both in colloquial and standard Finnish the reading of the participle is highly dependent of the context and determined by such factors as the overall syntactic environment and other co-occurring elements. One of the main findings here is that the Finnish passive present participle is not modal per se. The contextual modal reading arises whenever the state of affairs is conceptualized from the viewpoint of the implied subject of the participle, and the meaning of possibility or obligation depends mostly on whether the situation is pleasant or undesirable. In sections examining the grammaticalization of the Possibility and Obligation constructions, the perspective is diachronic. Both constructions have derived from copula constructions with the passive present participle as a predicate (adjective or adverb). These sections show how a linguistic change can be investigated on the basis of the patterns of usage in the empirical data. The Possibility construction is currently going through a restructuration to a passive verbal complex. The source of this construction is reflected in its present-day use by the fact that it heavily biased towards a small set of verbs. The Obligation construction has grammaticalized to a construction comparable to a compound tense. Patterns of use of the construction show that grammaticalization originates in specific syntactic constructions with an implication of practical necessity. Furthermore, it is shown that the Obligation construction has grammaticalized in different directions in standard and colloquial Finnish. Differing from the study on most typical phenomena investigated in the literature on grammaticalization of modality, the present study opens new perspectives and methods for discussion on these questions.

On the Modal Content of A Posteriori Necessities

This paper challenges the Kripkean interpretation of a posteriori necessities. It will be demonstrated, by an analysis of classic examples, that the modal content of supposed a posteriori necessities is more complicated than the Kripkean line suggests. We will see that further research is needed concerning the a priori principles underlying all a posteriori necessities. In the course of this analysis it will emerge that the modal content of a posteriori necessities can be best described in terms of a Finean conception of modality – by giving essences priority over modality. The upshot of this is that we might be able to establish the necessity of certain supposed a posteriori necessities by a priori means.

Purification and characterization of three toxins and two agglutinins from Abrus precatorius seed by using lactamyl-Sepharose affinity chromatography

Three toxins, abrin-I, -II, and -III, and two agglutinins, APA-I and -II, were purified from the seeds of Abrus precatorius by lactamyl-Sepharose affinity chromatography followed by gel filtration and DEAE-Sephacel column chromatography. abrin-I did not bind on DEAE-Sephacel column chromatography and the bound abrin-II, abrin-III, APA-I, and APA-II were eluted with a sodium acetate gradient. The identity of each protein was established by sodium dodecylsulfate-polyacrylamide gel electrophoresis and isoelectric focusing. The relative molecular weights are abrin-I, 64,000; abrin-II and abrin-III, 63,000 each: APA-I, 130,000; and APA-II, 128,000. Isoelectric focusing revealed microheterogeneity due to the presence of isoforms in each protein. Toxicity and binding studies further confirmed the differences among the lectins. The time course of inhibition of protein synthesis in thymocytes by the toxins showed lag times of 78, 61, and 72 min with Ki's of 0.55, 0.99, and 0.74 ms−1 at a 0.63 nImage concentration of each of abrin-I, -II, and -III, respectively. A Scatchard plot obtained from the equilibrium measurement for the lectins binding to lactamyl-Sepharose beads showed nonlinearity, indicating a cooperative mode of binding which was not observed for APA-I binding to Sepharose 4B beads. Further, by the criterion of the isoelectric focusing profile, it was shown that the least toxic abrin-I and the highly toxic abrin-II isolated by lactamyl-Sepharose chromatography were not retained on a low-affinity Sepharose 4B matrix, which signifies the necessity of using a high-affinity matrix for the purification of the lectins.

”Ihanan överi ja juhlallinen jakku olisi kyllä kiva lisä vaatekaappiin” – tutkimus kuluttamisesta ja professionalisoitumisesta elämäntyyliblogeissa

Tarkastelen tutkimuksessani muotibloggaajien kulutuspuhetta. Tutkimuksen tarkoituksena on selvittää, millaista kuluttajuutta muotiblogeissa ilmaistaan ja millainen kehityskaari muotiblogeissa on tapahtunut vuodesta 2007 tämän tutkimuksen tekemiseen asti tutkimusaineiston sekä tekemieni havaintojen perusteella. Tutkimus on toteutettu laadullisia tutkimusmenetelmiä käyttämällä. Olen kerännyt aineistoni kymmenestä naisten kirjoittamasta muotiblogista kahtena eri ajanjaksona vuonna 2009. Lisäksi tutkimuksessa on sekä etnografisen että netnografisen havainnoinnin piirteitä. Aineiston analysoinnin apuna olen käyttänyt teemoittelua sekä tyypittelyä. Tutkimuksesta selvisi, että muotibloggaajien näkeminen identiteettiään etsivänä liittyy oman tyylin etsimiseen ja erottautumisen haluun. Perinteinen näkemys kuluttajasta valitsijana ja passiivisena markkinoilla toimijana on väistymässä, sillä muotibloggaajat näyttäytyvät tutkimuksessa aktiivisina toimijoina ja tuottajina. Muotibloggaajat hakevat myös jatkuvasti uusia kulutuselämyksiä ja kommunikoivat toistensa kanssa välittämällä merkityksiä kuluttamisensa kautta. Muotibloggaajien kulutuspuheet näyttäytyvät tutkimuksessa ekonomistisen kulutuseetoksen ja perinteisen suomalaisen kulutuspuheen mukaisesti järkevinä. Säästäväisyyttä pidetään hyveellisenä ja tuotteiden hinnat vaikuttavat ostopäätösten tekemiseen. Muotibloggaajat osaavat kuitenkin kontrolloidusti nauttia kuluttamisesta. Kulutuspuheet noudattavat myös ekologis-eettisen kulutuseetoksen perinnettä, mikä ilmenee fanaattisuuden välttämisenä sekä perinteisten että sosiaalisen median kirpputorien suosimisena. Lisäksi muotibloggaajien kulutuspuheet käyvät ilmi sosiaalisena pakkona, sillä muotiblogin pitäminen mielenkiintoisena vaatii jatkuvaa himoa uusia kulutustuotteita kohtaan. Tutkimuksen perusteella muotiblogeissa korostuu yhteisöllisyys ja kuluttaminen on hyvin naisellista. Tutkimusaineistosta sekä havainnoista tekemieni päätelmien mukaan muotiblogit ovat muuttumassa elämäntyyliblogeiksi, sillä niissä kerrotaan yhä enemmän myös muista kuin kuluttamiseen liittyvistä aiheista. Samalla muotibloggaajat ovat kehittymässä tavallisesta kuluttajasta kohti asiantuntijuutta eli professionalisoitumassa. Professionalisoitumisen myötä muotibloggaajat toimivat uuden ajan kuluttajavalistajina ja muotiblogeissa syntyy uusia sanoja ja merkityksiä. Lisäksi muotibloggaajille on kehittynyt sellaisia tietoja ja taitoja, joita voi myydä. Muotibloggaajista onkin tulossa muodin ammattilaisia, joille maksetaan tulevaisuudessa bloggaamisesta myös palkkaa.

Työntekijän näkökulmat ja oppiminen ulkoistusprojektissa : "Aluks pelkää muutosta ja sit pelkää, ettei mikään muutukaan."

The aim of this master s thesis was to clarify employees views on outsourcing. The main questions of the study were 1) How the employees dealt with the change created by outsourcing and what things they felt important when implementing the change? 2) What kind of organizational questions the employees paid attention to when moving from one organization to another? 3) What kind of management issues the employees brought up in the outsourcing process? and 4) How the employees reflected change while experienced outsourcing? The theoretical foundations of the study were Jack Mezirow s theory of transformational learning and Yrjö Engeström s theory of expansive learning. The management of outsourcing was viewed by John P. Kotter s change management model. Research casted light on transformation and learning on four levels of analysis: on individual, organizational and management levels and on the level of reflection. The target of the study were the outsourced employees, who were moved from a Finnish public corporation to a private ITC organization along with the services they produce. The study material was eleven interviews from the outsourced employees. The study was implemented by fenomenographical theme analysis. The analysis revealed results in all four levels. On the individual level the main results were the importance of systematic and open information, meaning of social and technical integration and the feeling of employee s own control. On the organizational level the move from the public sector to private and all the changes in organizational culture and in fringe benefitswere fundamental. Organizational learning was analyzed with expansive learning theory. Expanding was perceived in four dimensions: temporal dimension, spatial dimension, responsibility-moral dimension and developmental dimension. On the management level the actions of one s closest manager was vital, as was the upper management s clear engagement and a shared view of the necessity of a change. In the data was found employees reflective talking, which was indicating the meaning of the change and which was interpreted from the learning point of view. According to this study, it is possible to identify and analyze reflective talk and that way have information about employees learning in an organizational change. It was prominent to notice how reflection in the process of outsourcing is extremely versatile and extensive.

From polarization to convergence: need to mend the broken patent system

For more than two hundred years, the world has discussed the issue of whether to continue the process of patenting or whether to do away with it. Developed countries remain polarized for various reasons but nevertheless the pro patent regime continued. The result was a huge volume of patents. The present article explains the implications of excessive volume of patents and conditions under which prior art search fails. This article highlights the importance and necessity of standardization efforts so as to bring about convergence of views on patenting.

Nature's Swiss Army Knives: Ovipositor Structure Mirrors Ecology in a Multitrophic Fig Wasp Community

Background: Resource partitioning is facilitated by adaptations along niche dimensions that range from morphology to behaviour. The exploitation of hidden resources may require specially adapted morphological or sensory tools for resource location and utilisation. Differences in tool diversity and complexity can determine not only how many species can utilize these hidden resources but also how they do so. Methodology and Principal Findings: The sclerotisation, gross morphology and ultrastructure of the ovipositors of a seven-member community of parasitic wasps comprising of gallers and parasitoids developing within the globular syconia (closed inflorescences) of Ficus racemosa (Moraceae) was investigated. These wasps also differ in their parasitism mode (external versus internal oviposition) and their timing of oviposition into the expanding syconium during its development. The number and diversity of sensilla, as well as ovipositor teeth, increased from internally ovipositing to externally ovipositing species and from gallers to parasitoids. The extent of sclerotisation of the ovipositor tip matched the force required to penetrate the syconium at the time of oviposition of each species. The internally ovipositing pollinator had only one type of sensillum and a single notch on the ovipositor tip. Externally ovipositing species had multiple sensilla types and teeth on their ovipositors. Chemosensilla were most concentrated at ovipositor tips while mechanoreceptors were more widely distributed, facilitating the precise location of hidden hosts in these wasps which lack larval host-seeking behaviour. Ovipositor traits of one parasitoid differed from those of its syntopic galler congeners and clustered with those of parasitoids within a different wasp subfamily. Thus ovipositor tools can show lability based on adaptive necessity, and are not constrained by phylogeny. Conclusions/Significance: Ovipositor structure mirrored the increasingly complex trophic ecology and requirements for host accessibility in this parasite community. Ovipositor structure could be a useful surrogate for predicting the biology of parasites in other communities.

River water quality response under hypothetical climate change scenarios in Tunga-Bhadra river, India

Analysis of climate change impacts on streamflow by perturbing the climate inputs has been a concern for many authors in the past few years, but there are few analyses for the impacts on water quality. To examine the impact of change in climate variables on the water quality parameters, the water quality input variables have to be perturbed. The primary input variables that can be considered for such an analysis are streamflow and water temperature, which are affected by changes in precipitation and air temperature, respectively. Using hypothetical scenarios to represent both greenhouse warming and streamflow changes, the sensitivity of the water quality parameters has been evaluated under conditions of altered river flow and river temperature in this article. Historical data analysis of hydroclimatic variables is carried out, which includes flow duration exceedance percentage (e.g. Q90), single low- flow indices (e.g. 7Q10, 30Q10) and relationships between climatic variables and surface variables. For the study region of Tunga-Bhadra river in India, low flows are found to be decreasing and water temperatures are found to be increasing. As a result, there is a reduction in dissolved oxygen (DO) levels found in recent years. Water quality responses of six hypothetical climate change scenarios were simulated by the water quality model, QUAL2K. A simple linear regression relation between air and water temperature is used to generate the scenarios for river water temperature. The results suggest that all the hypothetical climate change scenarios would cause impairment in water quality. It was found that there is a significant decrease in DO levels due to the impact of climate change on temperature and flows, even when the discharges were at safe permissible levels set by pollution control agencies (PCAs). The necessity to improve the standards of PCA and develop adaptation policies for the dischargers to account for climate change is examined through a fuzzy waste load allocation model developed earlier. Copyright (C) 2011 John Wiley & Sons, Ltd.

Optimal location of centre of gravity for swashplateless helicopter UAV and MAV

To investigate the use of centre of gravity location on reducing cyclic pitch control for helicopter UAV's (unmanned air vehicles) and MAV's (micro air vehicles). Low cyclic pitch is a necessity to implement the swashplateless rotor concept using trailing edge flaps or active twist using current generation low authority piezoceramic actuators. Design/methodology/approach – An aeroelastic analysis of the helicopter rotor with elastic blades is used to perform parametric and sensitivity studies of the effects of longitudinal and lateral center of gravity (cg) movements on the main rotor cyclic pitch. An optimization approach is then used to find cg locations which reduce the cyclic pitch at a given forward speed. Findings – It is found that the longitudinal cyclic pitch and lateral cyclic pitch can be driven to zero at a given forward speed by shifting the cg forward and to the port side, respectively. There also exist pairs of numbers for the longitudinal and lateral cg locations which drive both the cyclic pitch components to zero at a given forward speed. Based on these results, a compromise optimal cg location is obtained such that the cyclic pitch is bounded within ±5° for a BO105 helicopter rotor. Originality/value – The reduction in the cyclic pitch due to helicopter cg location is found to significantly reduce the maximum magnitudes of the control angles in flight, facilitating the swashplateless rotor concept. In addition, the existence of cg locations which drive the cyclic pitches to zero allows for the use of active cg movement as a way to replace the cyclic pitch control for helicopter MAV's.

Volume change behaviour of expansive soils

Understanding the volume change behaviour of expansive soils/clays becomes a dire necessity to obtain engineering solutions to structures founded on these soils. Behaviour of expansive soils does not conform to the natural behaviour of fine grained soils. Most of the cases, the permissible heave/settlement forms the design criteria. The paper discusses the basic properties, the role of effective stress concept, basic mechanism in controlling the volume change behaviour, the role of double layer repulsion and its validity and certain basic considerations of footing resting on an expansive soil with respect to heave or settlement and the soil reinforcement as a possible engineering solution.