Oι ανθρώπινες επιδράσεις στα παρόχθια οικοσυστήματα του Αλφειού πόταμου και oι προοπτικές για την ολοκληρωμένη διαχείριση τους. / Human effect on habitats of the Αlfios River and their possibilities for sustainable development.

Η παρούσα μελέτη εκπονείται στα πλαίσια του Μεταπτυχιακού προγράμματος της «Διοίκησης Επιχειρήσεων» του Πανεπιστημίου Πατρών και παρουσιάζει και αναλύει την εξέλιξη της Επιχειρηματικότητας στην Περιφέρεια Δυτικής Ελλάδας, με βάση τα διαθέσιμα στοιχεία. Ειδικότερα, παρατίθενται μία σειρά από κρίσιμα ποιοτικά και ποσοτικά δεδομένα, όπως δημογραφικά στοιχεία, στοιχεία απασχόλησης και εξέλιξης του ΑΕΠ, καθώς και δομικά στοιχεία ανάπτυξης των επιμέρους τομέων της τοπικής οικονομίας, που δίνουν μία συνοπτική, πλην όμως ουσιαστική εικόνα του πλαισίου - περιβάλλοντος εντός του οποίου αναπτύσσεται η Επιχειρηματικότητα στην Περιφέρεια. Ο σκοπός μας είναι: - Να εντοπίσουμε τα συγκριτικά πλεονεκτήματα, καθώς και να προτείνουμε τρόπους να τα διατηρήσουμε (strengths). - Να βρούμε και στη συνέχεια να διορθώσουμε τα συγκριτικά μειονεκτήματα (weaknesses). - Να εκμεταλλευθούμε τις τωρινές ευκαιρίες της αγοράς, καθώς και αυτές που θα προκύψουν (opportunities). - Να μειώσουμε τις συνέπειες των τωρινών και μελλοντικών απειλών της αγοράς (threats). / The present study’s goal is to present and analyze, as thoroughly as possible, the development of Entrepreneurship in the Region of Western Greece mainly based on the available official elements. Moreover our research relies on a wide range of critical qualitative and quantitative data , such as demographic elements, elements of employment and development of GDP, as well as structural elements of growth of different sectors of local economy, in order to give an evidential picture of this region’ s Entrepreneurship framework. By using the swot analysis method, this paper’s aim is: - to locate the comparative advantages (strengths), as well as to propose ways to maintain them - to locate the comparative disadvantages (weaknesses) and then propose ways that could lead to their solution - to explore the current opportunities of the market and also try to forecast the future ones - to decrease the loss-causing consequences of the current and future threats of market.

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Στα πλαίσια αυτής της πτυχιακής εργασίας μελετώνται οι υδρογεωλογικές και υδροχημικές συνθήκες που επικρατούν στην ευρύτερη περιοχή του Αγίου Βασιλείου. Το υπόβαθρο της περιοχής δομείται από ανθρακικά ιζήματα της μεταβατικής ζώνης μεταξύ των ζωνών Πίνδου και Πελαγονικής, ενώ το νοτιοδυτικό τμήμα δομείται από ανθρακικά ιζήματα και φλύσχη των ζωνών Πίνδου και Τρίπολης. Το κύριο αντικείμενο αυτής της εργασίας είναι να καθορίσει τις παραμέτρους του υδρολογικού ισοζυγίου χρησιμοποιώντας τα υδρομετεωρολογικά στοιχεία και τη τεχνολογία των γεωγραφικών συστημάτων πληροφοριών (GIS). / In the frame of this final work the hydrogeological and hydrochemical conditions that prevail in the broader Agios Vasilios region are studied. The geological background of the region is structured by carbonic sediments of transient area between Pindos zone and Pelagonikis, while the south-western department is structured by carbonic sediments and flysch of the Pindos and Tripolis zones. The main objective of this work is to determine the parameters of hydrological balance using hydrometeorological data and geographic information systems (GIS) technology.

Η παρούσα διπλωματική εργασία ασχολείται με την ανάλυση μικροσεισμικών δεδομένων με σκοπό τον προσδιορισμό των σεισμοτεκτονικών χαρακτηριστικών του Δυτικού Κορινθιακού Κόλπου. Η περίοδος μελέτης μέρος του Δεκεμβρίου του 2001 καθώς και του Ιανουαρίου και Φεβρουαρίου του 2002. Η υπό μελέτη σεισμικότητα καταγράφηκε από το δίκτυο PATNET το οποίο την περίοδο εκείνη αποτελούνταν από 31 σταθμούς καταγραφής. Η επεξεργασία των δεδομένων έγινε με τη βοήθεια των προγραμμάτων Seisgram2K και Hypo71pc. Σκοπός της εργασίας είναι: • Ο προσδιορισμός των επικέντρων, του εστιακού βάθους και του επικέντρου των σεισμών. • Περιγραφή της σεισμικότητας της περιοχής το διάστημα ανάλυσης των δεδομένων. • Ο προσδιορισμός των σεισμοτεκτονικών χαρακτηριστικών του Δυτικού Κορινθιακού, βάση της σεισμικότητας. / -

Η παρούσα διατριβή μελετά λεπτομερώς, για το διάστημα 1998 – 2007, τα επίπεδα, τη δομή και τη διαχρονική εξέλιξη της φτώχειας και της ανισότητας στην Ελλάδα, καθώς και τη σχετική θέση της Ελλάδας στα πλαίσια της ΕΕ. Χρησιμοποιήθηκαν τα στοιχεία των Ερευνών Οικογενειακών Προϋπολογισμών (ΕΟΠ) του 1998/99 και 2004/05 της ΕΣΥΕ και των Ερευνών Εισοδήματος και Συνθηκών Διαβίωσης (EU SILC) των ετών 2004-2007 της EUROSTAT. Μονάδα ανάλυσης είναι το μέλος του πληθυσμού και χρησιμοποιούνται οι κατανομές της ισοδύναμης συνολικής δαπάνης και ισοδύναμου συνολικού εισοδήματος κατά κεφαλή, λαμβάνοντας υπόψη το μέγεθος και τη σύνθεση του νοικοκυριού (χρήση κλιμάκων ισοδυναμίας). Βασικό συμπέρασμα της διατριβής είναι ότι η φτώχεια και ανισότητα μειώθηκε δραματικά μεταξύ 1998 και 2004, όπου η Ελληνική κοινωνία αύξησε την ευημερία των μελών της, ιδίως αυτών που βρισκόντουσαν στο κάτω άκρο της κατανομής του εισοδήματος. Η παραπάνω ανάλυση υποδεικνύει ότι η είσοδος της Ελλάδας στο ενιαίο νόμισμα ωφέλησε κατά πολύ την Ελληνική οικονομία και το σύνολο του πληθυσμού. Το διάστημα 2004-2007 η κατάσταση φαίνεται να χειροτερεύει ελαφρά, όπου οι μικρές αυξήσεις που καταγράφονται αποτελούν τα πρώτα σημάδια της οικονομικής κρίσης που ακολούθησε μετά το τέλος της εξεταζόμενης περιόδου. Ιδιαίτερα ανησυχητικό είναι ότι η Ελλάδα βρίσκεται συνέχεια στις χειρότερες πέντε θέσεις της κατάταξης των Ευρωπαϊκών χωρών, τόσο ως προς τα επίπεδα φτώχειας όσο και της ανισότητας, ενώ, διαχρονικά χειροτερεύει η θέση της στη συνολική κατάταξη. Τα αποτελέσματα της διατριβής επιβεβαιώνουν αποτελέσματα προηγούμενων μελετών ότι η ανισότητα στην Ελλάδα πηγάζει κυρίως από τις διαφορές περισσότερο εντός παρά ανάμεσα στις πληθυσμιακές ομάδες. Αυτό οδηγεί στη διαμόρφωση πολιτικών που στόχο έχουν τη μείωση της εσωτερικής ανισότητας στις διάφορες πληθυσμιακές ομάδες, ξεκινώντας από αυτές είτε με τη μεγαλύτερη ανισότητα είτε από αυτές που συνεισφέρουν σημαντικά στη συνολική ανισότητα. Ιδιαίτερο ενδιαφέρον για τη μελέτη της φτώχειας και της ανισότητας προκαλεί η χρήση της τεχνικής bootstrap και ο στατιστικός έλεγχος των διαστημάτων εμπιστοσύνης των μέσων όρων που χρησιμοποιεί η παρούσα διατριβή για την επιβεβαίωση της σημαντικότητας των μειώσεων που παρατηρήθηκαν στους δείκτες φτώχειας και ανισότητας μεταξύ 1998 και 2004, τουλάχιστον για τρεις πληθυσμιακές ομάδες, στις οικογένειες με αρχηγό συνταξιούχο του ΟΓΑ, στις οικογένειες με μέλη στον αγροτικό τομέα και στις οικογένειες με τρία ή περισσότερα παιδιά. Η προσομοίωση σεναρίων αύξησης των ενεργειακών τιμών υπέδειξαν τη σπουδαιότητα ελέγχου των ενεργειακών τιμών, ιδιαίτερα στα καύσιμα κίνησης και θέρμανσης, καθώς ακόμα και μικρές αυξήσεις της τάξης του 10% προκαλούν μεγάλη δυσχέρεια σε αρκετά άτομα, ενώ οι πραγματικές αυξήσεις είναι σε αρκετές περιόδους πολύ μεγαλύτερες. Η προσομοίωση σεναρίων αναδιανομής, αντίστοιχα, υπέδειξε ότι υπάρχουν σενάρια αναδιανομής με μηδενικό δημοσιονομικό κόστος που δεν προβλέπεται να προκαλέσουν ιδιαίτερες κοινωνικές αναταραχές και βελτιώνουν την υπάρχουσα κατάσταση της φτώχειας και της ανισότητας. / This doctoral dissertation explores in detail, for the years 1998 – 2007, the levels, the structure and the evolution over time of poverty and inequality in Greece, and the relative position of Greece inside EE. household income and expenditure data from the last two Household Budget Surveys (HBS) conducted in 1998/99 and 2004/05 by the National Statistical Service of Greece (NSSG) and household income data from Community Statistics on Income and Living Conditions (EU SILC) survey for the years 2004 -2007 conducted by EUROSTAT are used. The individual is the unit of analysis and distributions of total equivalence expenditure and total equivalence income per capita, take into account the size and the composition of the households using “family equivalence scales”. This dissertation concludes that poverty and inequality reduced dramatically between 1998 and 2004, where Greek society and especially people in the lower edge of the distribution of income (or/and expenditure) experienced an increased prosperity. This analysis indicates that the entry in Eurozone benefited well Greek economy and the entire population. Between the years 2004 and 2007, the situation seems a little worsened, where small increments are reported THAT can be the first signs of the oncoming economic crisis that followed the end of this period. In general, Greece is constantly in the last five places of the ranking of European countries, in terms both of poverty and inequality levels, while its position worsened during that period. The dissertation results confirm results from previous studies indicating that inequality in Greece rise mainly from inequalities within rather than between population subgroups. This leads to form politics targeting the elimination of inequality within population subgroups, starting from the groups with greater internal inequality or from the groups that contribute the most in overall inequality. Of great interest in the study of poverty and inequality is the use of bootstrap technique and the statistical test of confidence intervals of means that this dissertation uses for the verification of the significance of the decrements observed in poverty and inequality indices between 1998 and 2004, at least for three population groups, the households that have at least one member with income from agricultural occupation, the households with three or more children, and the households whose head gets a pension from the Agricultural Insurance Organisation (OGA). The simulation of scenarios of increased energy prices indicates the importance of controlling energy prices, especially for gasoline and heating oil, since even small increments of 10% of their prices cause great difficulties in people with incomes around poverty line, whilst actual increments in energy prices are much larger in several periods of time. The simulation of different scenarios of income redistribution indicates, respectively, that there are redistribution scenarios with zero fiscal cost, well targeted and not expected to cause considerable social unrest.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Neste trabalho foram analisadas a morfologia e a biodegradação de compósitos de poli(ε-caprolactona) com fibras provenientes da casca de coco verde. Parte destas fibras foi submetida à modificação química por meio da reação de acetilação. A avaliação da morfologia foi realizada nas amostras de poli(ε-caprolactona) puro e seus compósitos antes e após o teste de biodegradação. O teste de biodegradação foi feito pelo enterro das amostras em solo simulado por períodos distintos, variando de vinte a trinta semanas, seguindo a Norma ASTM G 160 03. Após cada período de teste, as amostras foram retiradas do solo e analisadas por microscopia ótica (MO), microscopia eletrônica de varredura (MEV), microscopia de força atômica (AFM), calorimetria diferencial de varredura (DSC), difratômetro de raios X (DRX) e ressonância magnética nuclear (RMN) de baixo campo no estado sólido. Pelas análises, foram verificados perda de massa, alteração morfológica da superfície e variação no percentual de cristalinidade das amostras. O PCL e os compósitos sofreram biodegradabilidade e a presença das fibras retarda ligeiramente esse processo / In this work the morphology and the biodegradation of composites of poly(ε-caprolactone) with fiber from green coconut were analyzed. Part of these fibers was submitted to chemical modification by acetylation reaction. The morphology study of poli(ε-caprolactone) pure and its composites was carried out before and after the biodegradation test. The biodegradation test was carried out by burying the samples in simulated soil for different durations, varying from twenty to thirty weeks, following the ASTM standard G 160 - 03. After each duration test, the samples were taken out of soil and analyzed by optical microscopy (OM), scanning electron microscopy (SEM), atomic force microscopy (AFM), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and solid state low-field nuclear magnetic resonance (NMR). The results showed that the samples loses mass, some morphological modification of the surface and variation in the percentage of crystallinity. PCL and the composites has suffered biodegradation and the fibers presence causes a retardance of this process

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Neste trabalho foram analisadas a morfologia e a biodegradação de compósitos de poli(ε-caprolactona) com fibras provenientes da casca de coco verde. Parte destas fibras foi submetida à modificação química por meio da reação de acetilação. A avaliação da morfologia foi realizada nas amostras de poli(ε-caprolactona) puro e seus compósitos antes e após o teste de biodegradação. O teste de biodegradação foi feito pelo enterro das amostras em solo simulado por períodos distintos, variando de vinte a trinta semanas, seguindo a Norma ASTM G 160 03. Após cada período de teste, as amostras foram retiradas do solo e analisadas por microscopia ótica (MO), microscopia eletrônica de varredura (MEV), microscopia de força atômica (AFM), calorimetria diferencial de varredura (DSC), difratômetro de raios X (DRX) e ressonância magnética nuclear (RMN) de baixo campo no estado sólido. Pelas análises, foram verificados perda de massa, alteração morfológica da superfície e variação no percentual de cristalinidade das amostras. O PCL e os compósitos sofreram biodegradabilidade e a presença das fibras retarda ligeiramente esse processo / In this work the morphology and the biodegradation of composites of poly(ε-caprolactone) with fiber from green coconut were analyzed. Part of these fibers was submitted to chemical modification by acetylation reaction. The morphology study of poli(ε-caprolactone) pure and its composites was carried out before and after the biodegradation test. The biodegradation test was carried out by burying the samples in simulated soil for different durations, varying from twenty to thirty weeks, following the ASTM standard G 160 - 03. After each duration test, the samples were taken out of soil and analyzed by optical microscopy (OM), scanning electron microscopy (SEM), atomic force microscopy (AFM), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and solid state low-field nuclear magnetic resonance (NMR). The results showed that the samples loses mass, some morphological modification of the surface and variation in the percentage of crystallinity. PCL and the composites has suffered biodegradation and the fibers presence causes a retardance of this process

Made available in DSpace on 2018-06-27T18:56:22Z (GMT). No. of bitstreams: 3 Igor Wanderley Reis Dias.pdf: 6016779 bytes, checksum: 86bcdcfbfacb63d4d4a518ace6997161 (MD5) Igor Wanderley Reis Dias.pdf.txt: 208576 bytes, checksum: cd35138cd2ea03d785b3e9c7e488c5c9 (MD5) Igor Wanderley Reis Dias.pdf.jpg: 3431 bytes, checksum: 2d647e86ee0171ea4dfc34ba86f497fd (MD5) Previous issue date: 2011-08-10 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / One of the widely used biodegradable polymers to control drug release in specific sites of action is the poly-ε-caprolactone (PCL). Considering exploring a potential application of this drug in the polymer, we studied its structural properties, electronic and energy the PCL interacting with the drugs indomethacin (IndOH) and its ethyl ester (IndEt), tazarotene (TZR) and chlorhexidine (CLX). The first stage of the study was performed by first-principles calculations based on density functional theory (DFT). After conformational analysis of the PCL, the interaction with the drugs was made using the conformation up-down-curved polymer, and it has been demonstrated in interactions with drugs IndOH, IndEt and TZR in both the concave portion of the polymer chain (PCL-IN) and the convex part (PCL-OUT) is that these interactions are essentially physical, and the value of energy connection occurs when high hydrogen bonds in the system, keeping also in a physical regimen when you re adding more polymer chains. As for interactions with CLX settings with a polymer chain (PCL-IN) show higher binding energies when compared to other systems, and interactions on the convex (PCL-OUT) there is a decrease in the binding energies in comparison with the PCL-IN settings, but in configurations with two polymer chains the binding energies are still high. With these results demonstrate that the systems obtained with IndOH, IndEt and are promising to TZR entrainment, and the CLX system tends not to be suitable for this purpose. In the second stage of this work was to study the structure and dynamics of solvation for configurations with four polymers with IndOH and IndEt. Through the radial distribution function (RDF) can observe the hydrophobic character of PCL and the folding of polymer chains in aqueous solution, with a little organization of water molecules and with greater organization of the polymer around the drug. And through the diffusion coefficient showed that the IndOH diffuses faster into the middle of the IndEt. These results show which configurations are more stable for the carrying of drugs and demonstrate agreement with the experimental results, showing the accuracy of the methodologies used. / Um dos polímeros biodegradável bastante utilizado para o controle da liberação de fármacos em sítios de ação específicos é a poli-ε-caprolactona (PCL). Considerando explorar uma potencial aplicação desse polímero na área farmacológica, estudou-se as propriedades estruturais, energéticas e eletrônicas da PCL interagindo com os fármacos indometacina (IndOH) e seu éster etílico (IndEt), o tazaroteno (TZR) e a clorexidina (CLX). A primeira etapa do estudo foi realizada por meio de cálculos de primeiros princípios baseados na teoria do funcional da densidade (DFT). Após a análise conformacional da PCL, a interação com os fármacos foi feita utilizando a conformação up-down-curvada do polímero, e o que foi demonstrado nas interações com os fárrmacos IndOH, IndEt e TZR, tanto na parte côncava da cadeia polimérica (PCL-IN) quanto na parte convexa (PCL-OUT) é que essas interações são essencialmente físicas, tendo o valor da energia de ligação elevado quando ocorre ligações de hidrogênio no sistema, mantendo-se também em um regime físico quando se tem a inclusão de mais cadeias poliméricas. Já para as interações com CLX as configurações com uma cadeia polimérica (PCL-IN) mostram energias de ligação elevadas, quando comparada aos outros sistemas, e para as interações na parte convexa (PCL-OUT) há uma diminuição nas energias de ligação em comparação com as configurações PCL-IN, porém nas configurações com duas cadeias poliméricas as energias de ligação ainda continuam elevadas. Com esses resultados demonstra-se que os sistemas obtidos com IndOH, IndEt e TZR são promissores ao carreamento, e que o sistema com CLX tende a não ser propício para este fim. Na segunda etapa do trabalho houve o estudo da estrutura e dinâmica de solvatação para as configurações com quatro polímeros com a IndOH e o IndEt. Através da função de distribuição radial (RDF) pode-se observar o caráter hidrofóbico da PCL e o enovelamento das cadeias poliméricas em solução aquosa, com uma pouca organização das moléculas de água e com uma maior organização do polímero em torno dos fármacos. E através do coeficiente de difusão demonstrou-se que a IndOH difunde mais rápido para o meio do que o IndEt. Estes resultados mostram quais configurações são mais estáveis para o carreamento de fármacos e demonstram concordância com os resultados experimentais, mostrando a acurácia das metodologias empregadas.

O poli(ácido láctico) (PLA) é um polímero biodegradável, biocompatível e bioabsorvível proveniente de fontes renováveis. Constitui uma excelente alternativa sustentável para substituição dos polímeros provenientes de petróleo, atualmente dominantes no mercado industrial. Apesar das vantagens, o PLA tem baixa tenacidade e reduzida elongação na ruptura a temperatura ambiente, o que torna a sua utilização limitada em usos que necessitem de alta deformação plástica em níveis de exigência mecânicos elevados. Misturas mecânicas de PLA com polímeros altamente flexíveis, como é o caso da poli(ε-caprolactona) (PCL), podem resultar em novos materiais com propriedades mecânicas adequadas para diferentes aplicações. Blendas PLA/PCL são completamente imiscíveis, sendo seu comportamento mecânico altamente dependente da interação interfacial entre os componentes da blenda. Portanto, o objetivo desse trabalho é avaliar o efeito compatibilizante de um copolímero em bloco de baixa massa molar (2000 g mol-1) derivado de ε-caprolactona e policarbonato (C2) e, disponível comercialmente em blendas imiscíveis PLA/PCL. Blendas binárias e ternárias foram preparadas por mistura mecânica no estado fundido via processo de extrusão em rosca simples. O teor de PLA nas blendas foi de 75, 50 e 25% (em massa) e a concentração do copolímero de 0, 1, 3, 5 e 7% (em massa). O comportamento térmico, morfológico e mecânico das blendas compatibilizadas e não compatibilizadas foi avaliado por Calorimetria Exploratória Diferencial (DSC), Análise Termodinâmico-Mecânica (DMTA), Microscopia Eletrônica de Varredura (MEV) e ensaios de tração, flexão e impacto Izod. Os resultados de DSC e DMTA indicaram que o copolímero provocou pequena redução na temperatura de transição vítrea (Tg) do PLA, sugerindo que o C2 é solúvel no PLA. Entretanto, nas micrografias das superfícies de fraturas do PLA foi nítida a presença de pequenas micelas formadas pelo copolímero em bloco, indicando que há um limite de solubilidade do compatibilizante na fase de PLA. Os resultados obtidos em tração mostraram que com o aumento do teor de compatibilizante, a tensão no escoamento, a tensão na ruptura e o módulo elástico das blendas sofrem alterações. A propriedade de tenacidade, avaliada no ensaio de impacto Izod, mostrou que as blendas tiveram um ganho na resistência quando comparadas com o PLA puro. Os resultados mostraram que o copolímero em bloco derivado de ε-caprolactona e policarbonato alifático pode atuar como compatibilizante para blendas PLA/PCL / Poly(lactic acid) (PLA) is a biodegradable, biocompatible and bioabsorbable polymer from renewable sources. It is an excellent sustainable alternative for replacing petroleum polymers, currently dominant in the industrial market. Despite the advantages, PLA has low toughness and reduced elongation at room temperature, which makes its use limited in uses that require high plastic deformation under high mechanical stress levels. Mechanical mixtures of PLA with highly flexible polymers, such as poly(ε-caprolactone) (PCL), may result in new materials with mechanical properties suitable for different applications. PLA/PCL blends are completely immiscible, and their mechanical behavior is highly dependent on the interfacial interaction between the components of the blend. Therefore, the objective of this work is to evaluate the compatibilizing effect of a low molar mass block copolymer (2000 g mol-1) derived from ε-caprolactone and polycarbonate (C2) and commercially available in PLA/PCL immiscible blends. Binary and ternary blends were prepared by mechanical mixing in the melted state via single-screw extrusion process. The content of PLA in the blends was 75, 50 and 25% (% by mass) and the copolymer concentration was 0, 1, 3, 5 and 7% (% by mass). The thermal, mechanical and morphological behavior of compatibilized and non-compatibilized blends was evaluated by differential scanning calorimetry (DSC), thermodynamic-mechanical analysis (DMTA), scanning electron microscopy (SEM), tensile test, flexion test, and Izod impact. The results of DSC and DMTA indicated that the copolymer caused a small reduction in the glass transition temperature (Tg) of PLA, suggesting that C2 is soluble in PLA. However, in the micrographies of the fracture surfaces of the PLA the presence of small micelles formed by the block copolymer is clear, indicating that there is a limit of solubility of the compatibilizer in the PLA phase. The results obtained in a tensile test showed that with the increase of the compatibilizing content, the tension in the flow, the tension at rupture and the elastic modulus of the blends undergo changes. The tenacity property, evaluated in the Izod impact test, showed that the blends had a gain in resistance when compared to pure PLA. The results showed that block copolymer derived from ε-caprolactone and aliphatic polycarbonate can act as a compatibilizer for PLA/PCL blends.