Estudi de la contaminació per nitrats a les aigües subterrànies de Catalunya: l'Alt Penedès, el Baix Camp, el Baix Empordà, el Baix Penedès, la Garrotxa, el Maresme, Osona, el Pla de l'Estany, la Segarra, el Segrià, el Tarragonès i l'Urgell

La contaminació per nitrats de les aigües subterrànies és un dels problemes mediambientals i de salut pública que més afecten els nostres aqüífers. És per això que un dels eixos del nostre estudi és fer la màxima difusió de l’estat de la qualitat de l’aigua dels aqüífers de diferents àrees de Catalunya. En el present estudi es tracta la contaminació per nitrats a les aigües de 945 punts de mostreig (sobretot d’aigua procedent de pous, d’algunes mines i d’algunes fonts) de Catalunya, situats en 12 comarques diferents, totes elles amb algun o una gran part dels seus municipis englobats en una zona vulnerable. D’aquests punts de mostreig s’ha fet un recull de dades de la concentració de nitrats des de l’any 2003 fins el 2012 per tal d’estudiar-ne l’evolució i la incidència de la pluviometria, així com conèixer en quines comarques les variables externes: superfície agrària útil (SAU), explotacions agràries i cabana porcina i bovina poden haver incidit directament en la contaminació. També s’estudia fins a quin punt, aquest deteriorament, ha afectat la mineralització de l’aigua o afecta a llocs d’aigües més mineralitzades. A partir dels resultats obtinguts s’ha arribat a les conclusions que la concentració mitjana de nitrats a les aigües subterrànies en la majoria de comarques estudiades és elevada, superior als 50 mg/l que estableix la normativa vigent; que ha tendit a l’estabilitat en els últims deu anys; que afecta llocs d’aigües molt mineralitzades i que la pluviometria incideix notablement en la concentració de nitrats. S’ha observat que les variables externes superfície agrària útil (SAU), explotacions agràries i cabana porcina i bovina incideixen directament en la contaminació, excepte al Maresme. Finalment es presenten diferents usos alternatius als de l’aigua de consum per aquestes aigües contaminades amb nitrats i que han posat en pràctica diferents municipis de les comarques estudiades.

Mission-Oriented Dust Control and Surface Improvement Processes for Unpaved Roads, HR-194, 1981

Six subject areas prompted the broad field of inquiry of this mission-oriented dust control and surface improvement project for unpaved roads: • DUST--Hundreds of thousands of tons of dust are created annually by vehicles on Iowa's 70,000 miles of unpaved roads and streets. Such dust is often regarded as a nuisance by Iowa's highway engineers. • REGULATIONS--Establishment of "fugitive dust" regulations by the Iowa DEQ in 1971 has created debates, conferences, legal opinions, financial responsibilities, and limited compromises regarding "reasonable precaution" and "ordinary travel," both terms being undefined judgment factors. • THE PUBLIC--Increased awareness by the public that regulations regarding dust do in fact exist creates a discord of telephone calls, petitions, and increasing numbers of legal citations. Both engineers and politicians are frustrated into allowing either the courts or regulatory agencies to resolve what is basically a professional engineering responsibility. • COST--Economics seldom appear as a tenet of regulatory strategies, and in the case of "fugitive dust," four-way struggles often occur between the highway professions, political bodies, regulatory agencies, and the general public as to who is responsible, what can be done, how much it will cost, or why it wasn't done yesterday. • CONFUSION--The engineer lacks authority, and guidelines and specifications to design and construct a low-cost surf acing system are nebulous, i.e., construct something between the present crushed stone/gravel surface and a high-type pavement. • SOLUTION--The engineer must demonstrate that dust control and surface improvement may be engineered at a reasonable cost to the public, so that a higher degree of regulatory responsibility can be vested in engineering solutions.

Surface functionalization of alumina ceramic foams with organic ligands.

Different anchoring groups have been studied with the aim of covalently binding organic linkers to the surface of alumina ceramic foams. The results suggested that a higher degree of functionalization was achieved with a pyrogallol derivative - as compared to its catechol analogue - based on the XPS analysis of the ceramic surface. The conjugation of organic ligands to the surface of these alumina materials was corroborated by DNP-MAS NMR measurements.

Transmission properties of high barrier coated paperboard packages

High barrier materiaaleilla pyritään pidentämään pakattujen elintarvikkeiden hyllyikää. Barrierin tärkein tehtävä on elintarvikkeen suojaaminen hapelta ja kosteudelta. Alumiinin käyttöä barriermateriaalina pyritään vähentämään korvaamalla alumiini polymeereillä, jotka täyttävät elintarvikkeiden asettamat korkeat säilyvyysvaatimukset. Etyylivinyylialkoholin (EVOH) hapenläpäisevyys on kuivissa olosuhteissa alhaisin kaupallisista muovilaaduista. EVOH tarjoaa myös erinomaisen suojan muita kaasuja, rasvoja, hajuja ja aromeja vastaan ja sitä on helppo prosessoida. Polyamideilla on erinomainen kaasutiiveys sekä hyvä lujuus ja sitkeys. Eri muovilaatuja sekoittamalla voidaan vähentää hapenläpäisyä ja parantaa prosessointia. Polyolefiineja käytetään yleisesti päällystysmateriaaleina, koska ne suojaavat tuotetta erinomaisesti kosteudelta. Hapenläpäisyllä tarkoitetaan hapen kulkeutumista materiaalin läpi joko permeaation kautta tai reikien ja vuotojen läpi. Kaasun permeoitumiseen materiaalin läpi vaikuttavat materiaalin vapaa tilavuus, kiteisyysaste, orientaatio, substituointi, suhteellinen kosteus, lämpötila, barrierkerroksen paksuus, paine-ero ja permeoituvan molekyylin ominaisuudet. Kokeellisessa osassa analysoitiin ja vertailtiin kartonkipohjaisia mehutölkkejä, joissa käytettävät high barrier materiaalit olivat EVOH ja PA. Kartonkipohjaisia alumiinitölkkejä käytettiin referenssinä. Pakkausten hapenläpäisevyysmittauksissa saatiin samasta näytteestä toistettavia tuloksia, vaikka vuotomittauksissa saadut tulokset eivät olleet vertailukelpoisia hapenläpäisytulosten kanssa. Tölkkien valmistus vaikutti oleellisesti pakkausten tiiveysominaisuuksiin. Hapenläpäisy vuotojen ja reikien läpi oli merkittävämpää kuin hapenläpäisy materiaalin läpi. Pakkausten tiiveysominaisuuksia analysoitiin mittaamalla appelsiinimehun askorbiini-happopitoisuus. Askorbiinihapon hajoaminen mitattiin koetölkkeihin pakatusta appelsiinimehusta, ja lämpötilan, valon ja hapen vaikutusta askorbiinihapon hajoamiseen tutkittiin 12 viikon ajan. Lämpötilalla oli suurin vaikutus askorbiinihapon hajoamiseen huolimatta käytetystä pakkausmateriaalista.

Contrast : a concept in language and its development in Medieval Spanish

The purpose of this PhD thesis is to investigate a semantic relation present in the connection of sentences (more specifically: propositional units). This relation, which we refer to as contrast, includes the traditional categories of adversatives - predominantly represented by the connector but in English and pero in Modern Spanish - and concessives, prototypically verbalised through although / aunque. The aim is to describe, analyse and - as far as possible - to explain the emergence and evolution of different syntactic schemes marking contrast during the first three centuries of Spanish (also referred to as Castilian) as a literary language, i.e., from the 13th to the 15th century. The starting point of this question is a commonplace in syntax, whereby the semantic and syntactic complexity of clause linkage correlates with the degree of textual elaboration. In historical linguistics, i.e., applied to the phylogeny of a language, it is commonly referred to as the parataxis hypothesis A crucial part of the thesis is dedicated by the definition of contrast as a semantic relation. Although the label contrast has been used in this sense, mainly in functional grammar and text linguistics, mainstream grammaticography and linguistics remain attached to the traditional categories adversatives and concessives. In opposition to this traditional view, we present our own model of contrast, based on a pragma-semantic description proposed for the analysis of adversatives by Oswald Ducrot and subsequently adopted by Ekkehard König for the analysis of concessives. We refine and further develop this model in order for it to accommodate all, not just the prototypical instances of contrast in Spanish, arguing that the relationship between adversatives and concessives is a marked opposition, i.e., that the higher degree of semantic and syntactic integration of concessives restricts some possible readings that the adversatives may have, but that this difference is almost systematically neutralised by contextual factors, thus justifying the assumption of contrast as a comprehensive onomasiological category. This theoretical focus is completed by a state-of-the-question overview attempting to account for all relevant forms in which contrast is expressed in Medieval Spanish, with the aid of lexicographic and grammaticographical sources, and an empirical study investigating the expression of corpus in a corpus study on the textual functions of contrast in nine Medieval Spanish texts: Cantar de Mio Cid, Libro de Alexandre, Milagros de Nuestra Sehora, Estoria de Espana, Primera Partida, Lapidario, Libro de buen amor, Conde Lucanor, and Corbacho. This corpus is analysed using quantitative and qualitative tools, and the study is accompanied by a series of methodological remarks on how to investigate a pragma-semantic category in historical linguistics. The corpus study shows that the parataxis hypothesis fails to prove from a statistical viewpoint, although a qualitative analysis shows that the use of subordination does increase over time in some particular contexts.

Patients' satisfaction with community treatment: a pilot cross-sectional survey adopting multiple perspectives.

ACCESSIBLE SUMMARY: Patients' satisfaction is scarcely studied within the context of community treatment for adolescents. Thus, this study adopts a multiple perspective on patients' satisfaction (including service users as well as staff members). The results highlighted that all informants (patients, foster carers in foster homes and professional caregivers from community treatment teams) perceived the patients to be satisfied, with foster carers reporting the highest patient satisfaction rate. Considering the patient satisfaction rate from multiple perspectives provides complementary understandings. Clinical outcomes and, specifically, a reduction in emotional difficulties were related to patient's satisfaction, but only from the patients' perspective. ABSTRACT: Community treatment (CT) teams in Switzerland provide care to patients who are unable to use regular child and adolescent mental health services (i.e. inpatient and outpatients facilities). No study has considered patients' self-rated satisfaction alongside with staff members' perspectives on patient satisfaction. Thus, adopting a cross-sectional survey design, we collected patients' satisfaction using the Client Satisfaction Questionnaire (CSQ-8), rated by multiple informants (patients, foster carers in foster homes and professional caregivers from CT teams). Professional caregivers assessed clinical outcomes using the Health of the Nation Outcome Scale for Children and Adolescents. The results indicated that all informants were satisfied with the community treatment teams. The satisfaction scores were not correlated across informants; however, the alleviation of emotional symptoms was correlated with patients' satisfaction. This study indicated that the use of a combined approach including the views of service users and professionals gives important complementary information. Finally, in our sample, lower emotional symptoms were linked to enhanced patient satisfaction. This study demonstrated the importance of considering multiple perspectives to obtain the most accurate picture of patients' satisfaction. Second, focusing on the reduction of emotional symptoms might lead to a higher degree of patients' satisfaction.

Patients' satisfaction with community treatment: a pilot cross-sectional survey adopting multiple perspectives.

ACCESSIBLE SUMMARY: Patients' satisfaction is scarcely studied within the context of community treatment for adolescents. Thus, this study adopts a multiple perspective on patients' satisfaction (including service users as well as staff members). The results highlighted that all informants (patients, foster carers in foster homes and professional caregivers from community treatment teams) perceived the patients to be satisfied, with foster carers reporting the highest patient satisfaction rate. Considering the patient satisfaction rate from multiple perspectives provides complementary understandings. Clinical outcomes and, specifically, a reduction in emotional difficulties were related to patient's satisfaction, but only from the patients' perspective. ABSTRACT: Community treatment (CT) teams in Switzerland provide care to patients who are unable to use regular child and adolescent mental health services (i.e. inpatient and outpatients facilities). No study has considered patients' self-rated satisfaction alongside with staff members' perspectives on patient satisfaction. Thus, adopting a cross-sectional survey design, we collected patients' satisfaction using the Client Satisfaction Questionnaire (CSQ-8), rated by multiple informants (patients, foster carers in foster homes and professional caregivers from CT teams). Professional caregivers assessed clinical outcomes using the Health of the Nation Outcome Scale for Children and Adolescents. The results indicated that all informants were satisfied with the community treatment teams. The satisfaction scores were not correlated across informants; however, the alleviation of emotional symptoms was correlated with patients' satisfaction. This study indicated that the use of a combined approach including the views of service users and professionals gives important complementary information. Finally, in our sample, lower emotional symptoms were linked to enhanced patient satisfaction. This study demonstrated the importance of considering multiple perspectives to obtain the most accurate picture of patients' satisfaction. Second, focusing on the reduction of emotional symptoms might lead to a higher degree of patients' satisfaction.

Overexpression of guanylate cyclase activating protein 2 in rod photoreceptors in vivo leads to morphological changes at the synaptic ribbon.

Guanylate cyclase activating proteins are EF-hand containing proteins that confer calcium sensitivity to retinal guanylate cyclase at the outer segment discs of photoreceptor cells. By making the rate of cGMP synthesis dependent on the free intracellular calcium levels set by illumination, GCAPs play a fundamental role in the recovery of the light response and light adaptation. The main isoforms GCAP1 and GCAP2 also localize to the synaptic terminal, where their function is not known. Based on the reported interaction of GCAP2 with Ribeye, the major component of synaptic ribbons, it was proposed that GCAP2 could mediate the synaptic ribbon dynamic changes that happen in response to light. We here present a thorough ultrastructural analysis of rod synaptic terminals in loss-of-function (GCAP1/GCAP2 double knockout) and gain-of-function (transgenic overexpression) mouse models of GCAP2. Rod synaptic ribbons in GCAPs−/− mice did not differ from wildtype ribbons when mice were raised in constant darkness, indicating that GCAPs are not required for ribbon early assembly or maturation. Transgenic overexpression of GCAP2 in rods led to a shortening of synaptic ribbons, and to a higher than normal percentage of club-shaped and spherical ribbon morphologies. Restoration of GCAP2 expression in the GCAPs−/− background (GCAP2 expression in the absence of endogenous GCAP1) had the striking result of shortening ribbon length to a much higher degree than overexpression of GCAP2 in the wildtype background, as well as reducing the thickness of the outer plexiform layer without affecting the number of rod photoreceptor cells. These results indicate that preservation of the GCAP1 to GCAP2 relative levels is relevant for maintaining the integrity of the synaptic terminal. Our demonstration of GCAP2 immunolocalization at synaptic ribbons at the ultrastructural level would support a role of GCAPs at mediating the effect of light on morphological remodeling changes of synaptic ribbons.

Talent, expert o les dues coses

De vegades és difícil distingir els conceptes d’individu amb talent i individu expert. Sens dubte, això és degut a que els individus que assoleixen l’èxit en l’esport, la música, el teatre, la literatura, etc. mostren ambdues condicions: una si es vol innata, el talent, i una altra adquirida, la de ser expert. També, de vegades, desitjaríem que els talents treballessin per a ser experts, aspecte que els elevaria a un grau superior d’excel·lència. En el present article es realitza una posada al dia d’ambdós conceptes amb l’objectiu d’establir una base adequada sobre la que sostenir amb més solidesa les decisions i actuacions del formador. També es presenten algunes nocions sobre el seguiment i control dels nois que gaudeixen en les canteres esportives sempre amb l’orientació bàsica de formar individus complerts amb un rendiment òptim.

Aplicació Actual de l’Aprenentatge Cooperatiu a la Universitat de Girona : passos cap a l’elaboració d’una guia sobre aprenentatge cooperatiu

The purpose of the present paper is to analyse the present state of thepractical application of cooperative learning methodologies at the University of Girona,to assess its strengths and weaknesses and to extract from that criteria, ideas andprinciples. These materials will be the basis upon which a guide or manual of use oncooperative learning will be drafted. The guide will be at the disposal of the UdGteaching staff and other people interested in it, with the aim of helping them with theirteaching and foster a higher degree of use of cooperative learning at the University. Thepaper presents the survey already conducted, as well as the methodology followed, thehypotheses of the study and the results obtained

Influência do agente precipitante na preparação do óxido de nióbio (V) hidratado pelo método da precipitação em solução homogênea

This work reports the preparation, characterization and study of the ion exchange behavior of hydrous niobium oxide prepared by a homogeneous precipitation method. The precipitating agent was obtained in aqueous solution by thermal decomposition of urea or ammonium carbonate. The compounds were chemically and physically characterized by X-ray diffractometry, thermal analysis (TG/DTG), surface area measurements and ion exchange behavior with sodium. The materials prepared with ammonium carbonate presented a higher degree of crystallinity and better ion exchange capacity with sodium than materials prepared with urea. In the homogeneous precipitation method, materials were obtained with specific surface area of 123 - 224 m² g-1. A variation of the preparation process produced hydrous niobium oxide with a different degree of hydration and specific surface area. This provided materials with different physico-chemical properties.

Astringent Food Compounds and Their Interactions with Taste Properties

Astringency is traditionally thought to be induced by plant tannins in foods. Because of this current research concerning the mechanism of astringency is focused on tannin‐protein interactions and thus on precipitation, which may be perceived by mechanoreceptors. However, astringency is elicited by a wide range of different phenolic compounds, as well as, some non‐phenolic compounds in various foods. Many ellagitannins or smaller compounds that contribute to astringent properties do not interact with salivary proteins and may be directly perceived through some receptors. Generally, the higher degree of polymerization of proanthocyanidins can be associated with more intense astringency. However, the astringent properties of smaller phenolic compounds may not be directly predicted from the structure of a compound, although glycosylation has a significant role. The astringency of organic acids may be directly linked to the perception of sourness, and this increases along with decreasing pH. Astringency can be divided into different sub‐qualities, including even other qualities than traditional mouth‐drying, puckering or roughing sensations. Astringency is often accompanied by bitter or sour or both taste properties. The different sub‐qualities can be influenced by different astringent compounds. In general, the glycolysation of the phenolic compound results in more velvety and smooth mouthdrying astringency. Flavonol glycosides and other flavonoid compounds and ellagitannins contribute to this velvety mouthdrying astringency. Additionally, they often lack the bitter properties. Proanthocyanidins and phenolic acids elicit more puckering and roughing astringency with some additional bitter properties. Quercetin 3‐O‐rutinoside, along with other quercetin glycosides, is among the key astringent compounds in black tea and red currants. In foods, there are always various other additional attributes that are perceived at the same with astringency. Astringent compounds themselves may have other sensory characteristics, such as bitter or sour properties, or they may enhance or suppress other sensory properties. Components contributing to these other properties, such as sugars, may also have similar effects on astringent sensations. Food components eliciting sweetness or fattiness or some polymeric polysaccharides can be used to mask astringent subqualities. Astringency can generally be referred to as a negative contributor to the liking of various foods. On the other hand, perceptions of astringent properties can vary among individuals. Many genetic factors that influence perceptions of taste properties, such as variations in perceiving a bitter taste or variations in saliva, may also effect the perception of astringency. Individuals who are more sensitive to different sensations may notice the differences between astringent properties more clearly. This may not have effects on the overall perception of astringency. However, in many cases, the liking of astringent foods may need to be learned by repetitive exposure. Astringency is often among the key sensory properties forming the unique overall flavour of certain foods, and therefore it also influences whether or not a food is liked. In many cases, astringency may be an important sub‐property suppressed by other more abundant sensory properties, but it may still have a significant contribution to the overall flavour and thus consumer preferences. The results of the practical work of this thesis show that the astringent phenolic compounds are mostly located in the skin fractions of black currants, crowberries and bilberries (publications I–III). The skin fractions themselves are rather tasteless. However, the astringent phenolic compounds can be efficiently removed from these skin fractions by consecutive ethanol extractions. Berries contain a wide range of different flavonol glycosides, hydroxycinnamic acid derivatives and anthocyanins and some of them strongly contribute to the different astringent and bitterness properties. Sweetness and sourness are located in the juice fractions along with the majority of sugars and fruit acids. The sweet and sour properties of the juice may be used to mask the astringent and bitterness properties of the extracts. Enzymatic treatments increase the astringent properties and fermented flavour of the black currant juice and decrease sweetness and freshness due to the effects on chemical compositions (IV). Sourness and sweetness are positive contributors to the liking of crowberry and bilberry fractions, whereas bitterness is more negative (V). Some astringent properties in berries are clearly negative factors, whereas some may be more positive. The liking of berries is strongly influenced by various consumer background factors, such as motives and health concerns. The liking of berries and berry fractions may also be affected by genetic factors, such as variations in the gene hTAS2R38, which codes bitter taste receptors (V).

Koulutetut maahanmuuttajat työmarkkinoilla. Tutkimus korkeakoulututkinnon suorittaneiden maahanmuuttajien työllistymisestä ja työurien alusta Suomessa

Maahanmuuttajien määrä on Suomessa merkittävämmin lisääntynyt vasta 1990- ja 2000-luvuilla. Vuonna 2010 Suomessa asui lähes 170 000 ulkomaan kansalaista. Tavallisimmin Suomeen muutetaan avioliiton, paluumuuton tai pakolaisuuden vuoksi. Pieni, joskin kasvava joukko muuttaa työn tai opiskelun vuoksi. Myös kansalaisuuksien, koulutustaustojen, ammattien jne. kirjo muuttajien joukossa on suuri. Ulkomaan kansalaisten lisääntyessä Suomessa on jouduttu kohtaamaan monenlaisia maahanmuuttoon liittyviä haasteita, joista työllistymiseen liittyvät kysymykset eivät ole vähäisimpiä. Tutkimuksessa tarkastellaan lähtömaassaan korkeakoulututkinnon suorittaneiden maahanmuuttajien työllistymistä ja työuran alkua Suomessa. Tutkimuksen tarkoituksena on selvittää, miten korkeakoulutetut maahanmuuttajat ovat Suomessa työllistyneet, minkälaisia heidän työuriensa alut ovat Suomessa olleet ja miten he ovat onnistuneet uudessa maassa hyödyntämään lähtömaassa hankkimaansa koulutusta. Lisäksi tutkimuksessa tarkastellaan, miten maahanmuuttajien lähtömaan erilaiset elämäntilanteet, olosuhteet ja valinnat ovat vaikuttaneet työuran muotoutumiseen Suomessa. Tutkimuksen aineisto muodostuu kysely- sekä haastatteluaineistosta. Kyselyaineiston (n=99) tarkoituksena on luoda määrällistä kuvaa korkeakoulutettujen maahanmuuttajien työllistymisestä Suomessa. Numerotietojen taakse jää kuitenkin näkymättömiin tieto maahanmuuttajien yksilöllisistä kokemuksista liittyen työllistymiseen ja työuran muotoutumiseen uudessa maassa. Toisena aineistona hyödynnettävän elämäkerrallisen haastatteluaineiston (n=20) kautta on mahdollista tehdä näkyväksi ne tutkittavien yksilölliset työ- ja koulutusuraan liittyvät valinnat, joita maahanmuuttajat ovat tehneet niin lähtömaassa kuin Suomessa sekä ne tilanteet ja olosuhteet, joissa tutkittavat ovat lähtömaassa eläneet ja joiden pohjalta he ovat tulleet Suomeen ja Suomen työmarkkinoille. Aineistoissa mukana olevat maahanmuuttajat olivat pääosin avioliiton, paluumuuton sekä pakolaisuuden vuoksi Suomeen tulleita. Vain muutama oli tullut työn vuoksi. Maahanmuuttajien työmarkkina-asemaa selitetään usein maahanmuuttajien resursseilla, kuten kielitaidolla, koulutuksella, työkokemuksella, sosiaalisten suhteiden ja verkostojen laadulla ja määrällä jne. Myös maahanmuuttajiin kohdistuvilla syrjivillä ja ennakkoluuloisilla asenteilla on keskeinen merkitys työllistymisessä. Koulutuksen ollessa yksi keskeisimmistä työmarkkina-asemaa määräävistä tekijöistä, tulisi koulutettujen maahanmuuttajien sijoittua hankitun tutkinnon oikeuttamiin tehtäviin. Tutkimuksessa kuitenkin havaittiin, että työllistyminen oli maahanmuuttajilla vaikeaa hyvästä koulutuksesta huolimatta. Kyselyaineistoon vastanneista vain muutama (6 %) oli työssä heti Suomeen muuttovuoden lopussa, kolme vuotta Suomessa asuttuaan työssä oli runsas kolmannes (35 %) ja aineistonkeruuhetkellä eli vuonna 2004 työssä oli 38 % vastaajista. Työsuhteet olivat tutkittavilla useimmiten määräaikaisia ja kestoltaan lyhyitä. Lisäksi työurat koostuivat runsaasta työttömyydestä sekä koulutukseen osallistumisesta. Myönteistä kuitenkin oli, että mikäli korkeakoulutetut maahanmuuttajat onnistuivat Suomessa työllistymään, vastasi työ usein joko kokonaan tai ainakin osittain hankittua korkeakoulututkintoa. Korkeakoulutettujen maahanmuuttajien työuran alut Suomessa voidaan tyypitellä kolmeen ryhmään, joista kukin jakaantui vielä kahteen alaryhmään siten, että kaiken kaikkiaan saatiin kuusi erilaista työuran alun tyyppiä: koulutusta vastaava vakaa ja vakiintuva ura, koulutusta osittain vastaava sekaura ja laskeva ura sekä koulutusta vastaamaton sisääntuloura ja työttömän ura . Haastatteluaineiston kautta tarkastellaan korkeakoulutettujen maahanmuuttajien yksilöllisiä elämänuria lähtien liikkeelle korkeakoulutettujen maahanmuuttajien lähtömaassa tekemistä ura- ja ammatinvalinnoista jatkuen Suomeen muuton kautta aina työuran muotoutumiseen Suomessa. Haastatteluja toisistaan erottelevina keskeisinä teemoina olivat toisaalta pärjääminen Suomessa ja suomalaisilla työmarkkinoilla toisaalta elämän muotoutuminen lähtömaassa ja nimenomaan siellä tehdyt ura- ja ammatinvalinnat ja niihin liittyvät kokemukset ja elämäntilanteet. Näiden kriteerien pohjalta aineisto jakaantui kolmeen ryhmään, jotka nimettiin pärjääjiksi, harhailijoiksi ja sinnittelijöiksi. Pärjääjien kertomukset muotoutuivat tietyllä tavalla myönteisen kehän kautta: niin lähtömaassa tehdyt ammatinvalinnat kuin työuran muotoutuminen Suomessa tapahtuivat suhteellisen vaivattomasti. Useimmiten työt Suomessa vastasivat lähtömaassa hankittua koulutusta. Omiin uravalintoihin oltiin myöhemmin myös tyytyväisiä. Harhailijoille oman paikan löytyminen oli puolestaan hankalampaa. Leimallista tälle ryhmälle oli tietynlainen valintojen vaikeus sekä tyytymättömyys omiin aikaisemmin tehtyihin ratkaisuihin. Jotkut harmittelivat nuorena tekemiään uravalintoja niin, että päättivät Suomessa hankkia kokonaan uuden ammatin. Muutto Suomeen merkitsi useimmille ammatillisen aseman laskua. Sinnittelijät kertoivat jo lähtökohdiltaan kahteen muuhun ryhmään nähden hyvin erilaista tarinaa. Tämän ryhmän lähes koko elämä lähtömaassa oli sodan ja levottomuuksien sävyttämää. Tämä näkyi myös ammatinvalinnassa: opiskelupaikka oli saatettu valita esimerkiksi sen perusteella, missä oli milloinkin turvallista opiskella. Myös Suomeen muutto erosi kahdesta aikaisemmasta ryhmästä, sillä lähtö entisestä kotimaasta oli tapahtunut usein hyvinkin yllättäen vailla etukäteissuunnittelua tilanteiden kärjistyttyä nopeasti. Suomessa työelämään pääseminen oli kaikille sinnittelijöille vaikeaa ja haastatteluhetkellä useilla vielä hyvin alkutekijöissä. Hyväkään koulutus ei aina takaa maahanmuuttajille työtä uudessa maassa, sillä hankittua tutkintoa ja osaamista ei ole helppo siirtää maasta toiseen. Pahimmassa tapauksessa vieraassa maassa suoritettu korkeakoulututkinto voi kokonaan mitätöityä uudessa maassa ja korkeakoulututkinnon myötä hankittu osaaminen menettää täysin arvonsa. Kyse on niin yksilön kuin yhteiskunnankin resurssien tuhlaamisesta tilanteessa, jossa maassa pysyvästi asuvat koulutetut maahanmuuttajat työskentelevät tavalla tai toisella koulutustaan vastaamattomissa epävakaissa töissä, työmarkkinoiden laitamilla tai ovat kokonaan työmarkkinoiden ulkopuolella.

Regioselective modification of galactose-containing polysaccharides in aqueous media

Biorefining is defined as sustainable conversion of biomass into marketable products and energy. Forests cover almost one third of earth’s land area, and account for approximately 40% of the total annual biomass production. In forest biorefining, the wood components are, in addition to the traditional paper and board products, converted into chemicals and biofuels. The major components in wood are cellulose, hemicelluloses, and lignin. The main hemicellulose in softwoods, which are of interest especially for the Nordic forest industry, is O-acetyl galactoglucomannan (GGM). GGM can be isolated in industrial scale from the waste waters of the mechanical pulping process, but is not yet today industrially utilized. In order to attain desired properties of GGM for specific end-uses, chemical and enzymatic modifications can be performed. Regioselective modifications of GGM, and other galactose-containing polysaccharides were done by oxidations, and by combining oxidations with subsequent derivatizations of the formed carbonyl or carboxyl groups. Two different pathways were investigated: activation of the C-6 positions in different sugar units by TEMPO-mediated oxidation, and activation of C-6 position in only galactose-units by oxidation catalyzed by the enzyme galactose oxidase. The activated sites were further selectively derivatized; TEMPO-oxidized GGM by a carbodiimide-mediated reaction forming amides, and GO-oxidized GGM by indium-mediated allylation introducing double or triple bonds to the molecule. In order to better understand the reaction, and to develop a MALDI-TOF-MS method for characterization of regioselectively allylated GGM, α-D-galactopyranoside and raffinose were used as model compounds. All reactions were done in aqueous media. To investigate the applicability of the modified polysaccharides for, e.g., cellulose surface functionalization, their sorption onto pulp fibres was studied. Carboxylation affects the sorption tendency significantly; a higher degree of oxidation leads to lower sorption. By controlling the degree of oxidation of the polysaccharides and the ionic strength of the sorption media, high degrees of sorption of carboxylated polysaccharides onto cellulose could, however, be obtained. Anionic polysaccharides were used as templates during laccase-catalyzed polymerization of aniline, offering a green, chemo-enzymatic route for synthesis of conducting polyaniline (PANI) composite materials. Different polysaccharide templates, such as, native GGM, TEMPO-oxidized GGM, naturally anionic κ-carrageenan, and nanofibrillated cellulose produced by TEMPO-oxidation, were assessed. The conductivity of the synthesized polysaccharide/PANI biocomposites varies depending on the polysaccharide template; κ-CGN, the anionic polysaccharide with the lowest pKa value, produces the polysaccharide/PANI biocomposites with the highest conductivity. The presented derivatization, sorption, and polymerization procedures open new application windows for polysaccharides, such as spruce GGM. The modified polysaccharides and the conducting biocomposites produced provide potential applications in biosensors, electronic devices, and tissue engineering.

La traduzione della letteratura per l’infanzia dal finlandese all’italiano: l’esempio degli albi illustrati di Mauri Kunnas

Despite the increasing number of research on translating for children, no study has so far taken into consideration the translations of children’s literature from Finnish into Italian. This dissertation sets out to fill this gap with a comparative study of Finnish picturebooks and their translations into Italian. Besides being the first research in the field analysing the shifts between these two systems, the study thoroughly investigates the characteristics of the translation process of picturebooks. The works chosen as case study are the Finnish picturebooks by Mauri Kunnas and their Italian translations from the period 1979-2009 because they are characterized by a high number of linguistic and cultural complexities which challenge translators’ skills and knowledge. The dissertation establishes whether and how culture-specific elements (anthroponyms, toponyms, food and allusions) and the word-image interaction have a significant impact on the quality and the nature of the target works, and also whether these aspects are still consistent after the translation and the adaptation process to the target system. Since picturebooks are multimodal texts whose message is produced by both the verbal and the visual, it has been necessary to use a multimodal comparative analysis. Such a descriptive comparative study has allowed me to describe the textual and cultural manipulations undergone by Kunnas’s picturebooks translated into Italian. Indeed, it has helped to identify what kind of shifts occur when cultural specific elements are transferred from the source system to the target one, to determine the most frequent translation strategies used to ensure a higher degree of readability, and to establish whether particular translation choices have contributed to modify the word-image interaction. The results of the multimodal comparative analysis have shown that Italian translators have been deeply influenced by the preponderance of the illustrations and for this reason they have often verbalised the visual and added information not originally contained in the source written text. Moreover, the findings of the analysis together with the interviews to the Italian translator and publishing house have also demonstrated that the latter aimed at producing works “good for the child” – and at the same time “good for the adult” – and at minimizing Finnish cultural specificity, even to the detriment of the aesthetic nature of the original picturebooks.