344 research outputs found

    100 years of Trebenishte

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    U Arheološkome muzeju u Skopju 14. ožujka 2019. otvorena je izložba u povodu obilježavanja stote obljetnice otkrića (godine 1918.) dviju zlatnih pogrebnih maski na nekropoli između sela Gorenci i sela Trebeništa (a ne Trebenischte)1 s ukupno 56 dosad otkrivenih grobova. Tim je povodom objavljena i luksuzna publikacija naslovljena: 100 years of TrebenishteAn exhibition was opened in the Archaeological Museum in Skopje on 14 March 2019 to observe the centenary of the discovery (in 1918) of two gold funeral masks in a necropolis between the villages of Gorenci and Trebeništa (and not Trebenischte)1 with a total of 56 graves found thus far. A luxuriously appointed book was also published for the occasion: 100 years of Trebenisht

    Influence of Agricultural Training on Youth Farm Entrepreneurial Self-efficacy: A Study of Folk Development Colleges in Tanzania

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    Providing entrepreneurial competencies to youth is currently the key to employment generation given the declining public sector employment opportunities in Tanzania. However, to generate such employment youth need to develop a strong belief in their capabilities to use the provided knowledge and skills, and the training provided has to reflect such intention. This further means that Folk Development Colleges (FDCs) being among the training institutions need to offer employment goal-oriented education centred equally in all domains of learning. The study aimed to address two specific objectives: First, to assess the influence of agricultural training on youth farm entrepreneurial self-efficacy. Secondly, to assess the relationship between farm entrepreneurial self-efficacy and youth farm entrepreneurial intention. A cross-sectional design was used involving 300 respondents randomly selected from three FDCs offering agricultural courses. Qualitative and quantitative data were collected and analysed by using descriptive and inferential statistics. The analyses generally show a significant relationship between agricultural courses studied and youth farm entrepreneurial self-efficacy. A significant relationship was also found between farm entrepreneurial self-efficacy and youth farm entrepreneurial intention. However, resource acquisition and operational competencies self-efficacy constructs seemed to have more influence on youth farm entrepreneurial intention compared to managerial and financial competencies self-efficacy constructs. It is recommended that course contents and the teaching environment be updated regularly according to changes in the demands of the agricultural sector industry. As it stands, the whole FDC curriculum needs a review, and urgent improvements are needed in relation to financial and managerial competencies

    Scrap Tire and Water Treatment Residual as Novel Green Sorbents for Removal of Common Metals from Polluted Storm Water Runoff

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    Although urbanization brings numerous benefits in our history, it has caused many environmental issues such as polluted urban runoff. A variety of pollutants at high concentrations, such as heavy metals, are present in urban runoff. Given that the polluted runoff is finally discharged into receiving waters and leads to non-point pollution in urbanized areas, appropriate management and treatment of the polluted urban stormwater is highly needed. However, current available best management practices (BMPs) are, to different degrees, restricted by their respective limitations. Therefore, there is an urgent demand in development of innovative, effective, and low-cost treatment methods for heavy metals in urban stormwater. The long term goal of this study is to develop an effective, low-cost BMP to address the pollution issue caused by urban runoff-induced heavy metals. Toward this goal, the overarching objective of this thesis research was to evaluate the performance of two industrial wastes, water treatment residual (WTR) and scrap tire rubber (TR), in the adsorption of Cu, Pb and Zn from water, as well as assess potential leaching of adsorbed metals from spent sorbents. The central hypothesis is that these sorbent materials provide effective adsorption for heavy metals from urban stormwater, without any significant chemical leaching from the spent WTR/TR. Bench scale tests were conducted in batch mode at pH 6.5 and room temperature to study metal adsorption by WTR alone, TR alone, and combined WTR and TR (WTR/TR), as well as Zn leaching from TR. Results show that WTR alone could rapidly and effectively adsorb the three metals, while TR adsorption was relatively slow but effective for Pb and Cu. However, TR significantly released Zn into bulk solution. The Zn leaching from TR appeared to be, at least partially, due to ion exchange between Zn in TR and Cu/Pb in bulk solution. Combination of WTR and TR could not only maintain a high adsorption potential for Cu and Pb in water, but also substantially inhibit the Zn release from TR, probably because WTR could immobilize the released Zn. Cu and Pb adsorption onto WTR/TR well followed the Freundlich adsorption isotherm model. High ionic strength enhanced WTR/TR adsorption of Cu and Pb, and 1:2 appeared to be the optimal mass ratio of WTR to TR. Desorption of Pb and Cu from spent WTR/TR was insignificant. However, in the presence of strong chelating agents such as EDTA, the absorbed metals could appreciably desorb into bulk solution. Column tests were also conducted to investigate the hydraulic behaviors and pollutant removal of the mixed WTR and TR media under continuous flow conditions. Hydraulic conductivities were affected by the mass ratio of WTR and TR and bed height. As the water flowed, the WTR powders might gradually move down to build up a sludge cake layer and clog the flow. Under certain conditions, the metals were effectively removed by the columns under a flow through condition. This study provides a preliminary investigation to apply WTR and TR for stormwater remediation. The encouraging results demonstrate that TR combined with WTR (WTR/TR) is a potential green sorbent for removal of undesirable heavy metals from urban runoff. Simultaneous of the two solid wastes substantially reduces the stormwater management costs because WTR and TR is almost “free”, as well as provides a new recycle pathway to address the two solid wastes that are originally disposed of within landfills

    Atezolizumab-induced encephalitis in a patient with metastatic breast cancer: a case report and review of neurological adverse events associated with checkpoint inhibitors

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    Immune-mediated encephalitis as an adverse event due to checkpoint inhibitors is very rare. We describe herein the case of a 38-year-old woman with metastatic triple-negative breast cancer who developed seizures and somnolence twelve days after receiving the first dose of Atezolizumab. Work up ruled out all infectious etiologies, and the patient was eventually diagnosed with immune-mediated meningoencephalitis. Symptoms recovered with a high-dose of steroids, and she was found to have an excellent response on follow-up imaging, which raised the question of whether a relationship exists between the occurrence, and severity of the adverse event and the response to treatment. Only a few other cases of atezolizumab–related encephalitis have been published. Early recognition and treatment are crucial; the reason why we are describing this case along with a review of the literature and a review on all the neurological immune-related adverse events due to the different checkpoint inhibitors

    自己励起型渦励振における後縁二次渦の役割に関する実験的研究

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    九州工業大学博士学位論文 学位記番号:工博甲第530号 学位授与年月日:令和3年9月24日1: Introduction|2: Literature Review|3: The Role of Secondary Vortex at Trailing Edge in Motion-induced Vortex Vibration for Rectangular Cylinders with Small Side Ratios|4: The Role of Secondary Vortex at Trailing Edge in Motion-induced Vortex Vibration for Rectangular Cylinders of B/D=2, 4, 6 in a Heaving Mode|5: The Role of Secondary Vortex at Trailing Edge in Motion-induced Vortex Vibration for Rectangular Cylinders of B/D=2, 4, 6 in a Torsional Mode|6: The Role of Secondary Vortex at Trailing Edge in Motion-induced Vortex Vibration for Specific Cross Sections|7: Conclusions and Future Issues九州工業大学令和3年
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