Abstract This study is based on the theory of biology and economy to establish the open access model, dynamic optimization model and static optimization of fishery mathematical models, to discuss the problem of fishery management. To be aimed at getting the equilibrium of resource stock and effort, research data are mainly analyzed by comparative statues. In so doing, the amount of grey mullet, collect and analyze the estimation of exogenous variable. Then, we can use Mathematica program to calculate the equilibrium value resource stock and the effort, and do the sensitivity analysis by standing on the change of estimation of exogenous variable. The result of analysis is as follow: These three fishery mathematical models¡¦ resource stock and effort are consistency. In another view of CPUE, it is not obvious of the economic effect of open access model. We must strengthen the management in policy of fishing for grey mullet, to let the fisherman earn the highest economic benefits. Keyword: open access model static optimization model. dynamic optimization model.

The fishery of the shrimp Acetes intermedius in the southwestern coast of Taiwan has long history , and it is the food of many species of fishes and large-scale shrimps . Shrimp Acetes has not only fallen on dead ears , but also been ignored its importantce of ecologyical status in the southwestern coast by the academia because of less harvest and output value in the past . It then comes into operation the management of catch , leading the price going up and output value increasing rapidly when the establishment of TungKang producer organization of the shrimp Acetes intrmedius in 1994 , and it also becomes the important seasonal fishery . According to as was mentioned above , the study is based on the theory of biology and economy to put out the open access model , static optimization model and dynamic optimization of fishery mathematical models , and further discuss the problem of fishery management. In connection with getting the equilibrium of resource stock and effort , research data from the substitution of real data are mainly analyzed by compareative statues on exogenous variable .By means of understanding the sensitivity of variation on endogenous variable depending on exogenous variable , we can provide the member of TungKang producer organization of the shrimp Acetes intrmedius with the control on harvest and preservation of stock . The study can get the fact that the management of TungKang producer organization of the shrimp Acetes intrmedius has the notion of sustainable administration by the deriveation of theoretical model and the simulate analysis of historyical data. I hope the management of TungKang producer organization of the shrimp Acetes intrmedius can be popularized.

In this research, using the statistic catch data of northwest pacific saury from the Overseas Fisheries Development Council of The Republic of China between 2004 to 2007 to conduct an resource assessment on pacific saury. First of all, calculate and compare the equilibrium level of open access fishery and the net present value maximization fishery. And then, using the northwest pacific saury statistic catch data from the Food and Agriculture Organization of The United Nations between 2005 to 2007 for the simulation analysis of resource of pacific saury, and the results simulated with the two fishing grounds of the equilibrium value for comparison. The results showed that the problem of depletion of the resource does not exist. The final, assumption that the value of parameters are changing in the range of reasonable in order to understand the impact of the changing in the fishery resource of the stock and effort. Collate and analyze the results, and expect that the results can be a management reference for the management of the northwest pacific saury fisheries.

In this study, the fundamental model of fish dynamic model- Gordon Schaefer Model is used to discuss the equilibrium levels for the Pacific Bluefin Tuna fishery of open access and dynamic optimization, and then to do the sensitivity analysis. By comparing the historical record of catch data with the equilibrium values of open access and dynamic optimization, we could know that the fish stocks and harvests of Pacific Bluefin Tuna are not in the condition of dynamic optimization. In order to ensure the sustainable development of Pacific Bluefin Tuna fishery, we have to take effective measures to preserve and manage the Pacific Bluefin Tuna resources. Finally, this study simulates and analyses the various management scenarios of the Pacific Bluefin Tuna fishery. The results of simulative analysis reveal that the optimal management of the Pacific Bluefin Tuna fishery would imply significant reallocation of the fishing gear shares. Furthermore, the net present value could increase substantially by reallocating the fishing gear shares.

Die sächsischen Hochschulbibliotheken verfügten bisher nur über eigene, auf die jeweilige Einrichtung beschränkte Hochschulschriftenserver. Qucosa, das der kostenlosen Publikation und dauerhaften Archivierung von elektronischen Diplomarbeiten, Dissertationen und anderen Veröffentlichungen dient, eröffnet den sächsischen Hochschulbibliotheken neue Perspektiven und bildet eines der Elemente einer „Digitalen Bibliothek“ in Sachsen. Bereits mehrere sächsische Hochschulen und Forschungsinstitute benutzen Qucosa zur Publizierung der eigenen Forschungsergebnisse. Auch nichtwissenschaftliche, staatliche Einrichtungen werden zukünftig ihre Schriften auf Qucosa im Volltext anbieten.

Der Vortrag wurde im Rahmen der Informationsveranstaltung „Elektronisches Publizieren an der TU Chemnitz – 10 Jahre MONARCH“ gehalten. Mit dem sprunghaften Anstieg wissenschaftlicher Publikation steigt die Informationsflut ständig weiter an. Im Zeitalter des Internet werden Veröffentlichungen in kürzester Zeit bereitgestellt und damit weltweit verfügbar. Andererseits führt die monopolistische Preispolitik von Großverlagen dazu, dass die wissenschaftlichen Informationen nicht mehr allen Interessierten zur Verfügung gestellt werden können. In den letzten Jahren ist speziell im STM-Bereich (Science, Technology, Medicine) eine enorme Steigerung der Zeitschriftenpreise zu verzeichnen. Aufgrund des sinkenden Erwerbungsetats der Bibliotheken ist die wissenschaftliche Informationsversorgung nicht mehr ausreichend gewährleistet. Konventionelle Lösungsansätze erweisen sich nicht als Ausweg aus der Informationskrise. Als alternatives Publikationsmodell wird Open Access betrachtet. Die wissenschaftlichen Informationen stehen kostenfrei und dauerhaft zur Verfügung. Gegründet wurde die Open Access Initiative 2001. Sie wird national u.a. unterstützt vom Wissenschaftsrat, der Kultusministerkonferenz und der Hochschulrektorenkonferenz. Zwei Jahre später wurde die "Berliner Erklärung über offenen Zugang zu wissenschaftlichem Wissen" verabschiedet und von führenden Wissenschaftsorganisationen des Landes (WR, HRK, DFG, Fraunhofer Gesellschaft, Max Planck Gesellschaft u.v.a.) unterzeichnet. Open Access-Dokumente können in Open Access-Zeitschriften oder z.Bsp. auf Dokumentenservern der Hochschulen veröffentlicht werden. Der Publikationsserver der TU Chemnitz, MONARCH wurde von der Deutschen Initiative für Netzwerkinformation zertifiziert. Der gemeinsam von Universitätsbibliothek und Universitätsrechenzentrum betreute Dienst entspricht nationalen und internationalen Standards. Im Vortrag wird abschließend auf praktische Beispiele nationaler Aktivitäten hingewiesen und es werden Möglichkeiten zur Umsetzung des Open Access Gedankens an der Technischen Universität Chemnitz angesprochen. / The lecture was held in the context of the information meeting "Electronic publishing at the Chemnitz University of Technology - 10 years MONARCH". With the precipitous rise of scientific publication the flood of information continues to rise constantly. In the age of the Internet publications are made available in shortest time and are accessible world-wide. On the other hand the monopolyistic price strategy of large publishing houses leads to the fact that the scientific information can be made available no more all interested ones. In the last years particularly an enormous increase of the magazine prices is to be registered within the STM range (Science, Technology, Medicine). Due to the sinking acquisition budget of the libraries the scientific information supply is no longer ensured sufficiently. Conventional solutions do not prove as a way out of the information crisis. As alternative publication model Open Access is regarded. The scientific information is available free of charge and durably. The Open Access Initiative was created 2001. It supported national among others of the scientific organisations Wissenschaftsrat, Kultusministerkonferenz and Hochschulrektorenkonferenz. Two years later the "Berlin Declaration on Open Access to Knowledge in the Sciences and Humanities" was adopted and by prominent science organizations of the country (WR, HRK, DFG, Fraunhofer Society, Max Planck Society u.v.a.) signed. Open Access-documents can be published in Open Access-journals or e.g. on document repositories of the universities. The publication server MONARCH was certificated by the German Initiative for Network Information. MONARCH is conformed to national and international standards. In the lecture finally referred to practical examples of national activities and it will suggested possibilities for the conversion of the Open Access thought at the Chemnitz University of Technology.

Four subjects, ecology, applied mathematics, sociology and economics, were selected to assess whether there is a citation advantage between journal articles that have an open access (OA) version on the Internet compared to those articles that are exclusively toll access (TA). In two rounds of data collection, citations were counted using the Web of Science and the OA status of articles was determined by using the search tools OAIster, OpenDOAR, Google and Google Scholar. In the first round a purposive sample of 4633 articles for the four subjects from high impact journals were examined, 2280 (49%) were OA and had a mean citation count of 9.04, whereas the mean for TA articles was 5.76. There was a clear citation advantage for those articles that were OA as opposed to those that were TA. This advantage, however, varied between disciplines, with sociology having the highest citation advantage but the lowest number of OA articles from the sample taken and ecology having the highest individual citation count for OA articles but the smallest citation advantage. Tests of correlation between OA status and a number of variables were generally found to be weak or inconsistent but some associations were significant. Google and Google Scholar were more successful at finding OA articles on the Internet than were OAIster or OpenDOAR. The country of origin of the citing authors for applied maths was found in order to assess whether those authors from poorer countries cited OA articles more frequently than TA articles. While cited to citing article ratios from lower income countries favoured OA articles, overall percentages gave mixed results. The data from the second round confirmed the result for sociology. The second sample for ecology was randomly taken from 82 journals and exhibited a greater OA advantage. For economics, a second purposive sample of articles from 21 mid-range impact journals was taken and also exhibited a greater OA advantage. In an attempt to establish the cause of any citation advantage, logistic regression was used to try to determine whether the bibliographic characteristics of the articles from both rounds could be used to predict OA status. Results from this were generally inconclusive.

E-LIS is an open access archive for library and information science. With over 5,800 documents as of June 2007 (over 5,000 in February 2007 when the archive was investigated in-depth), E-LIS is the world’s largest archive for LIS. Over half the documents in ELIS are peer-reviewed. E-LIS is particularly strong in English and Spanish language documents, but supports over 22 languages. With this multilingual support and a global team of volunteer editors, E-LIS has significant diversity in content, an advantage over traditional, english-based LIS resources. Not surprising, this tool designed by and for librarians features robust and user friendly search options. Lack of phrase searching, and pointing to a cross-archiving searching tool no longer supported when much better options are available, are identified as areas for improvement.

The Open Access movement seeks to make scholarly, peer-reviewed journal articles freely available to anyone, anywhere over the World Wide Web. There were some very significant developments in the area of Open Access (OA) in 2004, including statements by major funders in support of Open Access. There are now so many Open Access scholarly journal articles freely available, that, in the author’s opinion, being aware of, and using, the resources and related tools is now essential for libraries. Libraries can provide more resources faster for users by supplementing paid resources with ones that are Open Access. Library resources, such as link resolvers, are beginning to incorporate Open Access materials and web searches for Open Access materials. For example, the reSearcher software suite includes Open Access collections along with subscription-based resources in the CUFTS journals knowledgebase, and a web search for an Open Access copy of an article in the GODOT link resolver. SFX also incorporates Open Access journals. After exhausting more traditional resources, interlibrary loans staff are beginning to include Google searching in their workflow. This article will discuss what Open Access is, the dramatic growth of Open Access, and major collections, resources and tools. Implications, issues, and leadership opportunities for resource sharing specialists will be explored.

Magistro darbo objektas – Šio darbo objektas yra laisvos prieigos prie informacijos internete sąlygojamos problemos ir jų neutralizavimo būdai. Darbo tikslas ir uždaviniai - apibūdinti dvi kryptis. Visų pirma tai Open Access (Toliau OA) ir laisvą prieigą prie interneto ir jo teikiamų resursų, su tuo susijusias problemas, rizika, bei galimus jų neutralizavimo būdus (ši dalis yra labiau siejama su laisvu priėjimų prie interneto, nei su OA, kuris yra labiau skirtas akademinei visuomenei nei eiliniam vartotojui). Nuolatinis poreikis informacijai, kokiame formate ji bebūtų modernioje visuomenėje pastoviai auga. Žengiant į informacinės visuomenės amžių šis poreikis darosi vis aktualesnis tiek kasdieniam vartotojui, tiek akademinių interesų turintiems. Lietuvoje smarkiai didėjant internetizacijai, pakanka informacijos apie internetą ir jo grėsmes bei apsaugos būdus, tačiau apie Open Acces iniciatyvą informacijos beveik nėra. Bandysiu pristatyti OA ir laisvos prieigos prie informacijos internete problemas ir aktualijas, OA pirmuosius žingsnius Lietuvoje. OA Lietuvoje naujiena, tad bandysiu susisteminti turimus duomenis, atskleisti kas yra šioje srityje daroma, kokie yra pasiekimai ir planai. OA iniciatyva yra labai aktuali šios dienos mokslininkams kurie kaip žinia dirba be sienų, ir poreikis informacijai yra visada aktualus. Magistro darbas gali buti naudingas informacine visuomene, komunikacijomis, Open Access iniciatyva besidomintiems, dėstytojams, studentams. / Problems Caused by Free Information Access in the Internet and Ways to prevent them The main purpose f this work was to give a brief description of Open Access and to show how it works in real life and what steps are taken in Lithuania to promote Open Access movement in Lithuania’s Universities and other educational institutions. This work also describes some main problems cause by internet and it‘s usage. Both Open Access and everyday internet usage have lot‘s of issues, which really are not related, however we can compare both OA and Internet as free libraries which offer loads of useful (or not) information and both can possibly encounter threats related to internet threats. Society should pay lot’s of attention both to scientist’s needs and child protection – each of the mentioned use internet every day, in different aspects of course, but possible threats and problems exist in each side. Each society which will pay attention to internet literacy and safe usage, child protection, will consider the needs of the scientist groups is guaranteed to have information society within.