Fatty acids and nutrients in the flour made from tilapia (Oreochromis niloticus) heads

The objective of this work was to analyze the fatty acid composition and nutrient potential of flour made from tilapia heads, which are normally discarded during the filleting operation. Significant differences were found between the proximate composition (moisture, ash, protein and total lipids) of the in natura tilapia and the flour, due to the drying process. The predominant fatty acids in the heads (in natura and in the flour) were palmitic acid (1,999 mg.100 g-1 and 7,699 mg.100 g-1, respectively), oleic acid (3,128 mg.100 g-1 and 11,447 mg.100g-1, respectively), and linoleic acid (1,018 mg.100 g-1 and 3,784 mg.100 g-1, respectively). The results lead us to conclude that tilapia head flour offers high levels of protein (38.41%), total lipids (35.46%), and ash (minerals) (19.38%). The content of omega-3 (731 mg.100 g-1) were proved to be satisfactory. Also, n-6/n-3 ratio was 6.15 and PUFA/SFA ratio was 0.47, which are in agreement with the recommended levels. Thus, tilapia heads can be used as a low-cost raw material for food fit for human consumption.

Meat inspection and control in the slaughterhouses

Kirjallisuusarvostelu

The effect of hypoxia and reoxygenation in the response of mesangial cells to angiotensin II in vitro

INTRODUCTION: Mesangial cells (MC) may be involved in the glomerular alterations induced by ischemia/reperfusion injury. OBJECTIVE: To evaluate the response of immortalized MC (IMC) to 30 minutes of hypoxia followed by reoxygenation periods of 30 minutes (H/R30) or 24 hours (H/R24). METHODS: The intracellular calcium concentration ([Ca+2]i) was measured before (baseline) and after adding angiotensin II (AII, 10-5 M) in the presence and absence of glybenclamide (K ATP channel blocker). We estimated the level of intracellular ATP, nitric oxide (NO) and PGE2. RESULTS: ATP concentration decreased after hypoxia and increased after reoxygenation. Hypoxia and H/R induced increases in basal [Ca+2]i. AII induced increases in [Ca+2]i in normoxia (97 ± 9%), hypoxia (72 ± 10%) or HR30 (85 ± 17%) groups, but there was a decrease in the response to AII in group H/R24 since the elevation in [Ca+2]i was significantly lower than in control (61 ± 10%, p < 0.05). Glybenclamide did not modify this response. It was observed a significant increase in NO generation after 24 hours of reoxygenation, but no difference in PGE2 production was observed. Data suggest that H/R injury is characterized by increased basal [Ca+2]i and by an impairment in the response of cells to AII. Results suggest that the relative insensibility to AII may be at least in part mediated by NO but not by prostaglandins or vasodilator K ATP channels. CONCLUSION: H/R caused dysfunction in IMC characterized by increases in basal [Ca+2]i during hypoxia and reduction in the functional response to AII during reoxygenation.

Commerce in disguise : war and trade in the Caribbean free port of Gustavia, 1793–1815

ISBN 978-951-765-806-5Avhandlingen studerar frihamnen Gustavia på ön S:t Barthélemy, den svenska kolonin i Västindien, under de franska revolutionskrigen 1793-1815. Syftet är att kartlägga den ekonomiska aktiviteten genom Gustavia genom ett outforskat källmaterial och analysera hamnens roll i Västindien och i den atlantiska ekonomin under krigsåren. Det viktigaste resultatet av undersökningen är att den påvisar den kortvariga men exceptionella position som Gustavia fick under krigen, vilket ledde till att stora varuflöden gick genom den svenska kolonin och att sjöfart under svensk flagg i regionen tilltog. Krigskonjunkturen hämtade till ön ett stort antal nya invånare, framförallt från angränsande karibiska kolonier men också från USA och Europa. Frihamnen och ön fungerade kort under några decennier som en global marknadsplats i Västindien för handelsmän som kringgick blockader och handelsförbud. Vidare närmar sig även avhandlingen frågor om Sveriges engagemang i slavhandeln på ett systematiskt sätt, och demonstrerar att den svenska slavhandeln var mer omfattande än den tidigare forskningen visat, speciellt efter att rörelsen för slavhandelns förbud fått ett starkt fäste i Storbritannien. De tidigare stora internationella undersökningarna om slavhandeln har ofta missat det svenska inslaget. S:t Barthélemy har fått relativt lite uppmärksamhet i den svenska historieforskningen, och har ofta skildrats som ett exotiskt och ganska betydelselöst inslag i Sverige 1800-talshistoria. Mycket av den tidigare forskningen präglas av det nationalhistoriska perspektivet med kolonins länkar till Stockholm i blickfånget. Avhandlingen påvisar att länkarna mellan kolonin och Stockholm var fåtaliga och att dess ekonomiska betydelse för Sverige var ytterst liten. Däremot omvärderar avhandlingen kolonins betydelsefulla roll i ett större internationellt sammanhang. ----------------------------------------------------------- Väitöskirja käsittelee Gustavian vapaasatamaa Ruotsin Länsi-Intian siirtomaassa Saint-Barthélemyn saarella, Ranskan vallankumoussotien aikana 1793–1815. Tarkoitus on ollut kartoittaa Gustavian kautta kulkevaa taloudellista toimintaa tutkimattomien lähteiden avulla ja arvioida sataman asemaa Länsi-Intiassa sekä atlanttisessa taloudessa sotavuosina.Väitöskirjan tärkein tulos osoittaa sataman sotien aikana saavuttamaa lyhytkestoista mutta poikkeuksellista roolia, mikä johti suuren kaupankäynnin saapumiseen ruotsalaissiirtomaahan sekä siihen, että merenkulku ruotsalaisen lipun alla kiihtyi Länsi-Intian alueella. Sotatalouden nousukausi aikaansai pienelle saarelle muuttoliikkeen myötä suuren väestönkasvun, jonka lähteenä olivat pääsääntöisesti lähisaaret, mutta osa uusista asukkaista tuli myös Yhdysvalloista ja Euroopasta. Gustavian vapaasatama toimi muutaman vuosikymmenen ajan globaalina markkinapaikkana Länsi-Intian kauppamiehille, joilla oli tarve kiertää kauppasaartoja ja -kieltoja. Lisäksi väitöskirja lähestyy kysymystä Ruotsin osallistumisesta orjankauppaan ja osoittaa että ruotsalainen orjakauppa oli laajempaa kuin aiempi tutkimus on väittänyt, etenkin sen jälkeen kun kansanliike orjakauppaa vastaan oli saavuttanut vahvan tuen Iso-Britanniassa. Aiemmat laajat kansainväliset kartoitukset orjakaupasta ovat usein ohittaneet ruotsalaisten osallisuutta tässä yhteydessä. Saint-Barthélemy on aiemmin saanut suhteellisen vähän huomiota ruotsalaisessa historiankirjoituksessa, ja sitä on usein hahmoteltu eksoottisena ja melko merkityksettömänä osana Ruotsin 1800-luvun historiaa. Aiempaa tutkimusta on paljolti leimannut kansallinen historiankirjoitus, jonka keskeisenä kiinnostuksena ovat olleet saaren yhteydet Tukholmaan. Väitöskirja osoittaa kuitenkin että nämä yhteydet olivat heikkoja ja että siirtomaan taloudellinen merkitys Ruotsille oli hyvinkin pieni. Toisaalta väitöskirja arvioi siirtomaan todellista ja tärkeää roolia uudelleen sijoittamalla sen isompaan kansainväliseen asiayhteyteen.

Credibility, rules and power in the European Union institutions: a transactional analysis of the "Stability and Growth pact"

The credibility of the rules and the elements of power constitute fundamental keys in the analysis of the political institutions. This paper opens the "black box" of the European Union institutions and analyses the problem of credibility in the commitment of the Stability and Growth pact (SGP). This Pact (SGP) constituted a formal rule that tried to enforce budgetary discipline on the European States. Compliance with this contract could be ensured by the existence of "third party enforcement" or by the coincidence of the ex-ante and ex-post interests of the States (reputational capital). The fact is that states such as France or Germany failed to comply with the ruling and managed to avoid the application of sanctions. This article studies the transactions and the hierarchy of power that exists in the European institutions, and analyses the institutional framework included in the new European Constitution.

Autonomy of the state and development in the democratic capitalism

The paper argues that if the state, as an expression and part of a pact of domination, operates as a corporate actor with relative autonomy, vision and capacity to promote the development, it is a key institution to the economic transformation. Supported in the neo-Marxism, exposes the limits of institutionalist approach of autonomy of the state to explain its origin, but does not rule out this approach. Maintains that the class-balance theory of the state may explain its relative autonomy and at the same time aid in understanding the historical experiences of social-developmentalist state action, particularly in the social democratic regimes and in the current Latin America.

Rethinking "energy nationalism": a study of the relationship between nation states and companies in the oil industry

ABSTRACTThe term "energy nationalism" is frequently used by academic literature and media, but usually without adequate conceptual accuracy. Despite this, a set of papers deepens the discussion on the relationship between nation states and the energy industry, especially the oil sector. These papers allow identifying fundamental elements to understand the energy nationalism, either complementary or divergent between each other. Thus, this study aims at presenting an interpretation of the concept that fills the gaps left by the above mentioned literature based on a global analysis of the oil industry structure and its historical evolution since the mid-19thcentury.

Stretching the drum skin : an analysis of power relations in leadership and succession in the Evangelical Lutheran church in Tanzania-Northern diocese 1942– 1993

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Memory mixed with desire : a preliminary study of philosophy and literature in the works of Friedrich Nietzsche and Milan Kundera

Memory Mixed with Desire: A preliminary study of Philosophy and Literature in the works of Friedrich Nietzsche and Milan Kundera Robert Spinelli Brock University, Department of Philosophy This thesis studies intertextuality in the works of Friedrich Nietzsche and Milan Kundera through the primary themes of memory and forgetting. The thesis starts with two introductory chapters that delineate memory according to Nietzsche and Kundera respectively. From here, I move into a discussion of Nietzsche's Ubermensch as an example of the type of forgetting that Nietzsche sees as a cure for the overabundance of memory that has led to Christian morality. Next, I explore the Kunderan concept of kitsch as the polar opposite of what Nietzsche has sought in his philosophy, finishing the chapter by tying the two thinkers together in a Kunderan critique of Nietzsche. The thesis ends with a chapter devoted to the Eternal Return beginning with an exegesis of Nietzsche's idea and ending with a similar exegesis of Kundera's treatment of this thought. What I suggest in this chapter is that the Eternal Return might itself be a form of kitsch even in its attempt to revalue existence.

The mechanism of the regulation of energy distribution between photosystems 1 and 2 in the cyanobacterium Synechococcus sp. strain PCC 7002 /

Cyanobacteria are able to regulate the distribution of absorbed light energy between photo systems 1 and 2 in response to light conditions. The mechanism of this regulation (the state transition) was investigated in the marine cyanobacterium Synechococcus sp. strain PCC 7002. Three cell types were used: the wild type, psaL mutant (deletion of a photo system 1 subunit thought to be involved in photo system 1 trimerization) and the apcD mutant (a deletion of a phycobilisome subunit thought to be responsible for energy transfer to photo system 1). Evidence from 77K fluorescence emission spectroscopy, room temperature fluorescence and absorption cross-section measurements were used to determine a model of energy distribution from the phycobilisome and chlorophyll antennas in state 1 and state 2. The data confirm that in state 1 the phycobilisome is primarily attached to PS2. In state 2, a portion of the phycobilisome absorbed light energy is redistributed to photo system 1. This energy is directly transferred to photo system 1 by one of the phycobilisome terminal emitters, the product of the apcD gene, rather than via the photo system 2 chlorophyll antenna by spillover (energy transfer between the photo system 2 and photo system 1 chlorophyll antenna). The data also show that energy absorbed by the photo system 2 chlorophyll antenna is redistributed to photo system 1 in state 2. This could occur in one of two ways; by spillover or in a way analogous to higher plants where a segment of the chlorophyll antenna is dissociated from photo system 2 and becomes part of the photo system 1 antenna. The presence of energy transfer between neighbouring photo system 2 antennae was determined at both the phycobilisome and chlorophyll level, in states 1 and 2. Increases in antenna absorption cross-section with increasing reaction center closure showed that there is energy transfer (connectivity) between photosystem 2 antennas. No significant difference was shown in the amount of connectivity under these four conditions.

A speculative systems model of the dynamic interaction among students, faculty and administration in the community college, with particular reference to intrinsic motivation and the teacher-administrator interface

The challenge the community college faces in helping meet the needs of the living open system of society is examined in this study. It is postulated that internalization student outcomes are required by society to reduce entropy and remain self-renewing. Such behavior is characterized as having an intrinsically motivated energy source and displays the seeking and conquering of challenge, the development of reflective knowledge and skill, full use of all capabilities, internal control, growth orientation, high self-esteem, relativistic thinking and competence. The development of a conceptual systems model that suggests how transactions among students, faculty and administration might occur to best meet the needs of internalization outcomes in students, and intrinsic motivation in faculty is a major purpose of this study. It is a speculative model that is based on a synthesis of a wide variety of variables. Empirical evidence, theoretical considerations, and speculative ideas are gathered together from researchers and theoretici.ans who are working on separate answers to questions of intrinsic motivation, internal control and environments that encourage their development. The model considers the effect administrators·have on faculty anq the corresponding effect faculty may have on students. The major concentration is on the administrator--teacher interface.For administrators the model may serve as a guide in planning effective transactions, and establishing system goals. The teacher is offered a means to coordinate actions toward a specific overall objective, and the administrator, teacher and researcher are invited to use the model to experiment, innovate, verify the assumptions on which the model is based, and raise additional hypotheses. Goals and history of the community colleges in Ontario are examined against current problems, previous progress and open system thinking. The nature of the person as a five part system is explored with emphasis on intrinsic motivation. The nature, operation, conceptualization, and value of this internal energy source is reviewed in detail. The current state of society, education and management theory are considered and the value of intrinsically motivating teaching tasks together with "system four" leadership style are featured. Evidence is reviewed that suggests intrinsically motivated faculty are needed, and "system four" leadership style is the kind of interaction-influence system needed to nurture intrinsic motivation in faculty.