1,549 research outputs found

    Resistência mecânica do pericarpo de frutos de Bertholletia excelsa Bonpl. (Lecythidaceae).

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    Pesquisas estão sendo desenvolvidas para a utilização de matérias-primas resistentes como alternativa para os diversos usos de madeira ou para serem combinadas com resíduos madeireiros, na confecção de lâminas e aglomerados. Este trabalho objetivou caracterizar mecanicamente o fruto de Bertholletia excelsa e gerar informações que possam ser usadas na busca de materiais alternativos oriundos da biodiversidade. Ensaios de dureza Janka e de compressão foram realizados, respectivamente, para a obtenção de informações a respeito da resistência máxima do pericarpo do fruto perante a penetração de um corpo estranho e valores da força máxima sustentada pelo fruto intacto. Os procedimentos adotados foram similares aos utilizados para calcular a resistência mecânica da madeira. A dureza Janka média obtida foi de 3.454,52 N e a resistência à compressão foi de 185,90 MPa. O aproveitamento dos frutos da castanheira como compósito seria uma alternativa de uso do material, já que os ensaios indicaram que a matéria-prima possui boas propriedades mecânicas, apontando favoravelmente para o aprofundamento de estudos para seu uso

    The Third Reich’s Pean of Praise for the November Uprising’s Glory: Karl Hartl’s Ritt in Die Freiheit (1936)

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    This book was financially supported by the National Programme for the Development of Humanities: project “Cinema: Intercultural Perspective. Western-European Cinema in Poland, Polish Cinema in Western Europe. Mutual Perception of Film Cultures (1918–1939)”

    Perceptual deficits and inattention in schizophrenia

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    A number of investigators have found perceptual deficits in schizophrenic subjects. It has also been indicated that those with schizophrenia suffer from reduced attention. This raises the possibility that their perceptual deficits may wholly or in part reflect attentional effects. The present study used computer simulations to examine the potential effects of inattention on performance measures determined with three psychophysical methods: the Two Alternative Forced Choice (2-AFC) Staircase Method, the Two Alternative Forced Choice (2-AFC) Fixed Stimuli Method, and the Yes/No Method. It is shown that both 2-AFC methods are susceptible to attentional effects but, in contrast, the Yes/No Method may allow for the differentiation of attentional effects from sensory sensitivity and subjective criterion effects. The simulations indicate that it may be possible to control for attention effects by using Yes/No Method in combination to a 2AFC method

    Recent Progress in Understanding Nucleosynthesis via Rapid Neutron Capture

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    I discuss the recent progress in our understanding of nucleosynthesis via rapid neutron capture, the r-process, based on meteoritic data for the early solar system and observations of stars at low metallicities. At present, all data require that there be two distinct kinds of r-process events and suggest that supernovae are associated with these events. The diversity of supernova sources for the r-process may depend on whether a neutron star or black hole is formed in an individual supernova. This dependence, if substantiated by future observations discussed here, has important implications for properties of nuclear matter.Comment: 7 pages including 2 figures, to appear in the Proceedings of the 7th Conference on the Intersections of Particle and Nuclear Physic

    Blandford-Znajek process as a gamma ray burst central engine

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    We investigate the possibility that gamma-ray bursts are powered by a central engine consisting of a black hole with an external magnetic field supported by a surrounding disk or torus. The rotational energy of the black hole can be extracted electromagnetically as a Poynting flux, a mechanism proposed by Blandford and Znajek(1977). Recently observed magnetars indicate that some compact objects have very high magnetic fields, up to 101510^{15} G, which is required to extract the energy within the duration of a GRB, i.e., in 1000 s or less. We demonstrate also that the Poynting flux need not be substantially dominated by the disk.Comment: 7 pages, no figure, paspconf.sty, to appear in Proceedings " Gamma Ray Bursts: The First Three Minutes", Gr\"aft{\aa}vallen, Sweden, Feb. 6 - 11, 199

    Radosław Kaleta, Białorusko-polska homonimia międzyjęzykowa, Warszawa, 2014, ss. 169

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    Bartwicka H., J. Mędelska, Czy może się pan na mnie położyć? Słowniczek dyferencjalny współczesnego północnokresowego dialektu kulturalnego i języka ogólnopolskiego, Bydgoszcz 1995.Wojan K., Z. Wojan, Analiza akustyczna jako parametr klasyfikacji formalnej homonimii międzyjęzykowej, [w:] XLIX Otwarte Seminarium z Akustyki OSA’2002, Polskie Towarzystwo Akustyczne, Oddział Warszawski, Warszawa – Stare Jabłonki 9–13.09.2002, s. 355–361.Wojan K. przy udziale E. Skupińskiej-Dybek, Słownik homonimów leksemowych języka rosyjskiego z polskimi ekwiwalentami tłumaczeniowymi, Gdańsk: Wydawnictwo Uniwersytetu Gdańskiego, 2011.Wojan K., Wstęp do badań wieloznaczności leksemów w ujęciu kontrastywnym, Gdańsk 2010, s. 268.455-463745546

    PELATIHAN AKUNTANSI PESANTREN BERDASARKAN ISAK 35 BAGI PESANTREN DI JAWA TENGAH

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    Kegiatan pengabdian ini bertujuan untuk melatih pengelola pondok pesantren di Jawa Tengah agar dapat menyusun laporan keuangan yang sesuai dengan standar akuntansi keuangan yang berlaku ISAK 35. Pesantren mitra yang menjadi peserta pelatihan ini ada 10 pesantren yang tersebar di Kabupaten Kudus, Kabupaten Pati, Kabupaten Blora, Kabupaten Demak, Kabupaten Jepara, dan Kota Salatiga. Jumlah pengelola pesantren yang mengikuti pelatihan ini adalah 19 orang. Pemilihan mitra berdasarkan rekomendasi dari Rabithah Mahad Islamiyah NU (RMI-NU) wilayah Jawa tengah. Metode yang digunakan adalah ceramah, diskusi, dan studi kasus yang dikemas dalam kegiatan workshop. Luaran pengabdian ini adalah pengelola pondok pesantren dapat melakukan pembukuan dan menyusun laporan keuangan pesantren berdasarkan ISAK 35. Hasil pelatihan yang telah dilakukan menunjukkan kemampuan peserta meningkat dengan rata-rata nilai posttest 68 dari 19 orang yang mengikuti pelatiha

    EDUKASI DAN PENDAMPINGAN ALTERNATIF INVESTASI GENERASI Z SEBAGAI FUTURE INVESTOR

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    Tren dan prospek investasi di kalangan generasi Z semakin merangkak naik, akan tetapi faktanya di lapangan masih banyak Gen Z yang mengalami keraguan dalam memulai investasi dan bingung dalam menentukan produk investasi yang tepat serta aman. Padahal Gen Z akan menjadi future investor yang menjadi penggerak dan penerus dalam dunia investasi. Oleh karena itu, Kegiatan ini dilakukan untuk memberikan suatu edukasi pada Gen Z mengenai dasar investasi serta alternatif investasi terutama investasi yang memiliki risiko rendah seperti Surat Berharga Negara (SBN) yang meliputi SBR, ORI maupun Sukuk sehingga diharapkan para Gen Z memiliki pemahaman yang baik mengenai investasi serta mengetahui alternatif investasi yang memiliki risiko rendah di tengah pandemi COVID-19. Dari hasil post-test didapat kesimpulan bahwa sebanyak 71 peserta tertarik berinvestasi di SBN sebanyak 97,2% dan 62% diantaranya berkeinginan menempatkan investasi pada ORI, 22,5% diantaranya tertarik pada investasi Sukuk dan sisanya sebesar 15,5% tertarik berinvestasi pada SBR. Berdasarkan hasil test, diperoleh data bahwa kegiatan edukasi ini berhasil meningkatkan pengetahuan atas investasi sebesar 90%
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