1,221 research outputs found

    A comment on "What catch data can tell us about the status of global fisheries"

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    There is considerable interest in the state of the world’s natural fishery resources. The paper by Froese et al. (2012) is a recent example of applying a set of ad hoc decision rules to a time series of catch data in order to assign the world’s fisheries to categories of exploitation and hence make generalisations about their current status. They conclude that the percentage of stocks that are over-exploited is worse than previously reported in FAO (2010). The approach used by Froese et al. is based on an algorithm proposed by Froese and Kesner-Reyes (2002) which has been heavily criticised both on theoretical grounds and from simulation studies (Branch et al. 2011; Daan et al. 2011; Wilberg and Miller 2007). In their recent paper, Froese et al. (2012) produce additional analyses to support their method which assumes that maximum sustainable yield (MSY) lies in the interval (0.5Cmax, Cmax), where Cmax is the maximum observed catch in the time series. Unfortunately, these analyses do not support their contention that MSY for a particular stock is related to maximum catch in a predictable way and renders their conclusions unsaf

    Editor, executive and entrepreneur: strategic paradoxes in the digital age

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    This is the final, accepted and refereed manuscript to the article publishedTo survive in today’s increasingly complex business environments, firms must embrace strategic paradoxes: contradictory yet interrelated objectives that persist over time. This can be one of toughest of all leadership challenges, as managers must accept inconsistency and contradictions. In this article, we develop and empirically test a set of hypotheses related to ambidexterity, a key example of a paradoxical strategy. Through our analysis of data from a survey of executive leaders, we find a link between organizational ambidexterity and strategic planning, suggesting that the complexities of navigating in explorative ventures require more explicit strategy work than the old certainties of a legacy business. We identify and discuss inherent paradoxes and their implications for firm performance in 22 industry-specific strategies, where empirical industry data shows a pattern of conflict between explorative growth strategies and exploitative profit strategies. We argue that this is just one of the inherent paradoxes in the ambidexterity construct.2. Forfatterversjo

    Manual para a produção em pequena escala de conserva de tomate desidratado.

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    Higiene e sanitização. Fluxograma básico de processamento de tomate. Etapas de processamento de tomate seco. Elaboração de conserva de tomate. Etapas de processamento de conserva. Como estimar o lucro e os custos envolvidos no processamento.bitstream/item/65526/1/2003-DOC-0052.pd

    Testicular cancer in Iceland 2000-2009: Incidence and survival

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    Neðst á síðunni er hægt að nálgast greinina í heild sinni með því að smella á hlekkinn View/OpenIntroduction: Survival of patients with testicular germ cell tumours has improved in recent years, mainly due to new modes of chemotherapy. We analyzed incidence, staging and survival of patients diagnosed during the last ten years in Iceland and compared the results to previous studies. Materials and methods: A retrospective study including all Icelandic males diagnosed during 2000-2009. Pathology reports were reviewed and the tumours staged (Boden-Gibb). Overall survival was estimated and seminomas (ST) and non-seminomas (N-ST) compared. Results: 97 males were diagnosed, age-adjusted incidence being 5.9/100.000 males per year. The number of ST and N-ST was almost equal, and the mean age was 35.6 (range; 15-36), but patients with ST were 11.5 years older compared to N-ST. Symptoms were similar in both groups, also tumor size (4.0 cm), which did not change during the study period. Most of the tumours were in stage I, or 78.4%, 13.4% were in stage II og 8.2% in stage III-IV. ST were diagnosed at a significantly lower stage compared to N-ST (91.7 versus 65.3% in stage I; p=0.003). No distant metastases were diagnosed in patients with ST but in 8 patients with N-ST. Four patients died during the study period, two due to N-ST but no patient died because of ST. Five-year survival for the whole patient group was 95.1%. Conclusion: The incidence of testicular carcinoma in Iceland is similar to neighbouring countries and has remained fairly constant for the last two decades. At the same time the number of patients with localized disease (stage I) as well as the size of the tumours has not changed significantly. Survival in Iceland is comparable to the best results reported elsewhere.Inngangur: Á síðustu áratugum hafa lífshorfur sjúklinga með eistnakrabbamein batnað umtalsvert, aðallega vegna tilkomu öflugra krabbameinslyfja. Markmið rannsóknarinnar var að kanna nýgengi, stigun og lífshorfur sjúklinga síðastliðin 10 ár og bera saman við eldri rannsóknir. Efniviður og aðferðir: Rannsóknin er afturskyggn og nær til allra íslenskra karla sem greindust 2000-2009. Farið var yfir meinafræðisvör og æxlin stiguð með kerfi Boden-Gibb. Heildarlífshorfur voru reiknaðar og borin saman sáðfrumukrabbamein (SFK) og ekki-sáðfrumukrabbamein (E-SFK). Niðurstöður: Alls greindust 97 karlar og var aldursstaðlað nýgengi 5,9/100.000 karla á ári. Hlutfall SFK og E-SFK var jafnt, en meðalaldur við greiningu var 35,6 ± 12,0 ár (bil 15-76 ) og var 11,5 árum hærri fyrir SFK en E-SFK. Einkenni og tímalengd einkenna voru hins vegar svipuð, einnig meðalstærð æxlanna (4,0 cm) sem hélst óbreytt á rannsóknartímabilinu. Flest æxlanna voru á stigi I, eða 78,4%, 13,4% á stigi II og 8,2% á stigum III-IV. SFK greindust á marktækt lægri stigum samanborið við E-SFK (91,7 sbr. 65,3% á stigi I; p=0,003). Engin fjarmeinvörp greindust hjá sjúklingum með SFK en hjá átta sjúklingum með E-SFK. Fjórir sjúklingar létust á rannsóknartímabilinu, tveir úr E-SFK en enginn úr SFK. Fimm ára lífshorfur fyrir allan hópinn voru 95,1%. Ályktun: Miðað við nágrannalönd er nýgengi eistnakrabbameins á Íslandi í meðallagi og hefur haldist stöðugt síðustu tvo áratugi. Á sama tímabili hefur hlutfall sjúklinga með staðbundinn sjúkdóm (stig I) lítið breyst og stærð æxlanna sömuleiðis. Lífshorfur hér á landi hafa haldist mjög góðar síðustu áratugi og eru með því hæsta sem þekkist

    Manual para processamento de pimentas (Capsicum spp) desidratada.

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    Introdução. Secagem de pimenta - Processo utilizado pelos produtores. Desidratação de pimenta - Secagem artificial em secador de cabine. Higiene e sanificação. Recomendações gerais para as etapas de processamento. Vantagens deste processo. Referências bibliográficas.bitstream/item/79988/1/doc63-2005.pd
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