59 research outputs found
Dampak Sosial Budaya Masyarakat Perkotaan Akibat Pandemi Covid-19 Di Kelurahan Kleak Kecamatan Malalayang Kota Manado
Tujuan penelitian ini adalah untuk mengetahui Dampak Sosial Budaya Masyarakat Perkotaan Akibat Pandemi Covid-19 di Kelurahan Kleak Kecamatan Malalayang Kota Manado. Kondisi kesejahteraan sekarang ini mulai dipertanyakan, apakah terpenuhi atau tidak, jika melihat situasi dan kebijakan yang telah ditetapkan pemerintah, kondisi kesejahteraan sosial tidak berjalan seperti biasanya. Terlihat dari sisi sosial yang di batasi, lalu tergangunya kesehatan mental individu diatas kecemasan dan stres akan terjangkitnya virus tersebut, terpenuhi atau tidaknya kebutuhan sehari-hari yang ada, ataupun bantuan sosial yang telah diberikan pemerintah sesuai sasaran atau tidak. Pandemi covid-19 telah membawa perubahan besar bagi seluruh lapisan masyarakat di berbagai aspek, termasuk di dalamnya, aspek sosial budaya. Pandemi covid-19 memaksa pembatasan aktivitas sosial antar individu satu dengan yang lainnya, sehingga memunculkan kebiasaan yang berbeda dari kehidupan sebelumnya. Dengan kata lain, pandemi ini telah memunculkan budaya masyarakat baru untuk merespon kebijakan pembatasan aktivitas sosial yang ada. Penelitian ini menggunakan metode penelitian kualitatif. Hasil penelitian disimpulkan bahwa Dampak sosial budaya di perkotaan akibat pandemic covid 19 khususnya di Kelurahan Kleak sangat merasakan dampaknya terutama akan kebijakan melalui pembatasan pergerakan masyarakat hal tersebut dapat terlihat dari perubahan budaya masyarakat yang mengalami perubahan dan pergeseran, hubungan antar sesama masyarakat, kontak fisik yang sudah jarang terjadi bahkan untuk berbicara harus menjaga jarak sehingga mengganggu hubungan social.
Kata Kunci : Dampak, Sosial Budaya, Perkotaan, Pandemi Covid-1
A Consumption-Based Approach to Carbon Emission Accounting â Sectoral Differences and Environmental Benefits
In recent years there has been growing concern about the emission trade balances of countries. This is due to the fact that countries with an open economy are active players in international trade. Trade is not only a major factor in forging a countryâs economic structure, but contributes to the movement of embodied emissions beyond country borders. This issue is especially relevant from the carbon accounting policy and domestic production perspective, as it is known that the production-based principle is employed in the Kyoto agreement.
The research described herein was designed to reveal the interdependence of countries on international trade and the corresponding embodied emissions both on national and on sectoral level and to illustrate the significance of the consumption-based emission accounting. It is presented here to what extent a consumption-based accounting would change the present system based on production-based accounting and allocation. The relationship of CO2 emission embodied in exports and embodied in imports is analysed here. International trade can blur the responsibility for the ecological effects of production and consumption and it can lengthen the link between consumption and its consequences.
Input-output models are used in the methodology as they provide an appropriate framework for climate change accounting. The analysis comprises an international comparative study of four European countries (Germany, the United Kingdom, the Netherlands, and Hungary) with extended trading activities and carbon emissions.
Moving from a production-based approach in climate policy to a consumption-based principle and allocation approach would help to increase the efficiency of emission reductions and would force countries to rethink their trading activities in order to decrease the environmental load of production activities. The results of this study show that it is important to distinguish between the two emission accounting approaches, both on the global and the local level
Proton stability in grand unified theories, in strings, and in branes
A broad overview of the current status of proton stability in unified models
of particle interactions is given which includes non - supersymmetric
unification, SUSY and SUGRA unified models, unification based on extra
dimensions, and string-M-theory models. The extra dimensional unification
includes 5D and 6D and universal extra dimensional (UED) models, and models
based on warped geometry. Proton stability in a wide array of string theory and
M theory models is reviewed. These include Calabi-Yau models, grand unified
models with Kac-Moody levels , a new class of heterotic string models,
models based on intersecting D branes, and string landscape models. The
destabilizing effect of quantum gravity on the proton is discussed. The
possibility of testing grand unified models, models based on extra dimensions
and string-M-theory models via their distinctive modes is investigated. The
proposed next generation proton decay experiments, HyperK, UNO, MEMPHYS,
ICARUS, LANNDD (DUSEL), and LENA would shed significant light on the nature of
unification complementary to the physics at the LHC. Mathematical tools for the
computation of proton lifetime are given in the appendices. Prospects for the
future are discussed.Comment: Published in Physics Reports. 258 pages, 11 figure
Industrial output restriction and the Kyoto protocol: An input-output approach with application to Canada
The objective of this paper is to assess the economic impacts of reducing greenhouse gas emissions by decreasing industrial output in Canada to a level that will meet the target set out in the Kyoto Protocol. The study uses an ecological-economic Input-Output model combining economic components valued in monetary terms with ecologic components - GHG emissions - expressed in physical terms. Economic and greenhouse gas emissions data for Canada are computed in the same sectoral disaggregation. Three policy scenarios are considered: the first one uses the direct emission coefficients to allocate the reduction in industrial output, while the other two use the direct plus indirect emission coefficients. In the first two scenarios, the reduction in industrial sector output is allocated uniformly across sectors while it is allocated to the 12 largest emitting industries in the last one. The estimated impacts indicate that the results vary with the different allocation methods. The third policy scenario, allocation to the 12 largest emitting sectors, is the most cost effective of the three as the impacts of the Kyoto Protocol reduces Gross Domestic Product by 3.1% compared to 24% and 8.1% in the first two scenarios. Computed economic costs should be considered as upper-bounds because the model assumes immediate adjustment to the Kyoto Protocol and because flexibility mechanisms are not incorporated. The resulting upper-bound impact of the third scenario may seem to contradict those who claim that the Kyoto Protocol would place an unbearable burden on the Canadian economy. (C) 2008 Elsevier B.V. All rights reserved
Eficiencia de la Planta de Tratamiento de Aguas Residuales de la Ciudad de Jaén
Esta investigaciĂłn tiene por objetivo, Evaluar la eficiencia de la planta de tratamiento de aguas residuales (PTAR) de la ciudad de JaĂ©n conforme a lo estipulado en la Norma TĂ©cnica Peruana (NTP) OS â 090, la metodologĂa empleada es de dos formas; El trabajo en campo, comprendido por la inspecciĂłn ocular a los componentes de la planta, estado actual de las lagunas, superficie y forma geomĂ©trica, topografĂa y estudio de suelos; registrados en libreta de campo y fotografĂas. El trabajo en gabinete comprendido por cĂĄlculo de caudales, anĂĄlisis de laboratorio realizados en la Universidad Nacional de JaĂ©n y OIKOSLAB.SAC; siendo los resultados en un primer momento en el afluente una DBO5 de 1 840 mg/L y DQO de 2 200 mg/L, en el efluente una DBO5 de 1 200 mg/L y DQO de 1 680 mg/L arrojando una eficiencia para una DBO5 de 34.78%, y la DQO de 23.64%; en un segundo anĂĄlisis los resultados segĂșn OIKOSLAB.SAC en el afluente son DBO5 de 216 mg/L y DQO de 568 mg/L, en el efluente una DBO5 de 190 mg/L y DQO de 417 mg/L con una eficiencia para una DBO5 de 11.75% y DQO. De 26.56%, concluyendo que la PTAR es deficiente
Ălaboration et caractĂ©risation de nouvelles membranes composites thermostables pour piles Ă combustible
Ces travaux sont une contribution aux efforts aujourd'hui menés pour tenter de trouver de nouveaux polyélectrolytes alternatifs à l'utilisation de la membrane référence des piles à combustible, la membrane NafionŸ de Dupont de Nemours. L'ensemble de ce travail porte sur l'étude de l'effet de la sulfonation sur les mouvements moléculaires du polysulfone sulfoné et sur l'effet de l'introduction de particules de laponite modifiée sur les processus de transport des molécules d'eau et sur la conductivité ionique de ces nouvelles membranes hybrides. La diminution de la taille moyenne des mouvements coopératifs aprÚs sulfonation a permis de mettre en avant le confinement de la phase amorphe du polysulfone attribué, par analogie au modÚle de structure de la membrane NafionŸ, à la réorganisation des segments de chaßnes du polysulfone sulfoné en clusters de groupements ioniques. De plus, l'introduction de laponite-SO3H, par une augmentation de la concentration en sites ioniques et par l'affinité que possÚdent ces particules pour l'eau, a montré l'accélération de la diffusion des molécules d'eau et l'amélioration de la conductivité ionique de ces membranes composites.The present work aims at finding alternative materials for the reference membrane for fuel cells, the NafionŸ membrane from Dupont de Nemours. It concerns the effect of the sulfonation of polysulfone on the polymer segment motions, and that of modified laponite particles dispersed in sulfonated polysulfone on the water transport and the proton conductivity of these new hybrid membranes. The decrease, after sulfonation, in the cooperative motion average sizes allowed us to suggest a confinement of the glassy polymer chains in ionic clusters formed by interactions between sulfonic groups, in much a similar way as those formed in the NafionŸ membrane. Moreover, the incorporated laponite-SO3H particles favor water diffusion and enhance the ionic conductivity of the composite membranes, by increasing the total content in ionic groups and the overall water affinity.ROUEN-BU Sciences (764512102) / SudocSudocFranceF
Amorphous phase dynamics at the glass transition in drawn semi-crystalline polyester, DMA and TMDSC comparatives studies
International audienc
The behaviour of wine aroma compounds related to structure and barrier properties of virgin, recycle and active PET membranes
Virgin PET, 100% recycled PET and PET containing an oxygen scavenger have been compared for their thermal properties and gas and aroma compound permeability. Thermal properties were slightly different between virgin and recycled PET, which exhibited the same degree of crystallinity but also strong heterogeneity in dispersion and size of crystals. However, glass transition was higher in the presence of oxygen scavenger because of its nature. Similar oxygen and carbon dioxide permeability were measured for virgin, recycled and PET with 1% of oxygen scavenger, whereas with 3% of oxygen scavenger gas barrier properties increased. Water barrier properties of PET were not influenced either by recycling or by the presence of oxygen scavenger and a plasticization effect was evidenced for all films. Concerning volatile organic compounds such as ethanol and aroma compounds, virgin PET was the best barrier. Permeability was strongly affected by the affinity of the compound for the material. Sorption of pure or diluted solution of ethanol induced changes in thermal properties with a slight decrease in Tg and a marked decrease of crystallinity. In contrast, the oxygen permeability after contact with the diluted solution of ethanol was increased, suggesting a reduction of free volume by sorption. Finally, the impact of film barrier properties on three aroma compounds of wine was evaluated and confirmed the inertness of PET concerning aroma compounds and the positive effect of active packaging
Industrial output restriction and the Kyoto protocol: An input-output approach with application to Canada
The objective of this paper is to assess the economic impacts of reducing greenhouse gas emissions by decreasing industrial output in Canada to a level that will meet the target set out in the Kyoto Protocol. The study uses an ecological-economic Input-Output model combining economic components valued in monetary terms with ecologic components - GHG emissions - expressed in physical terms. Economic and greenhouse gas emissions data for Canada are computed in the same sectoral disaggregation. Three policy scenarios are considered: the first one uses the direct emission coefficients to allocate the reduction in industrial output, while the other two use the direct plus indirect emission coefficients. In the first two scenarios, the reduction in industrial sector output is allocated uniformly across sectors while it is allocated to the 12 largest emitting industries in the last one. The estimated impacts indicate that the results vary with the different allocation methods. The third policy scenario, allocation to the 12 largest emitting sectors, is the most cost effective of the three as the impacts of the Kyoto Protocol reduces Gross Domestic Product by 3.1% compared to 24% and 8.1% in the first two scenarios. Computed economic costs should be considered as upper-bounds because the model assumes immediate adjustment to the Kyoto Protocol and because flexibility mechanisms are not incorporated. The resulting upper-bound impact of the third scenario may seem to contradict those who claim that the Kyoto Protocol would place an unbearable burden on the Canadian economy.Ecological-economic input-output model Climate change Kyoto protocol Economic impact
Spontaneous pneumomediastinum, pneumoretroperitoneum, and cervicofacial subcutaneous emphysema after repeatedly and forcefully blowing into a bottle
Spontaneous pneumomediastinum (SPM) is an uncommon, self-limiting condition associated with increased intra-thoracic pressure resulting in alveolar rupture. Search of the literature revealed no detailed case report about a 26-year-old psychiatric patient who repeatedly and forcefully blew air into a bottle for 5 days resulting in a combined condition of spontaneous pneumoretroperitoneum, pneumomediastinum, and cervicofacial subcutaneous emphysema. It is crucial to find a primary source and treat appropriately. Psychiatric patients may have psychotic behaviors mimicking Valsalva's maneuver that increases intra-thoracic pressure and causing SPM. Optimal medications should be given to control psychotic behaviors. Family members and caregivers should be explained about this unusual behavior so that they can prevent this rare condition
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