The Eye of the Storm

Lebanon is in the throes of an unprecedented crisis in its modern history. Starting October 17, 2019, the people of Lebanon have been protesting in the streets in a broad-based uprising. This paper highlights key post-civil war realities and practices that led to the country teetering and proposes a solution package to what ails the country and threatens its future

Addressing China's exported emissions

For more about the East-West Center, see http://www.eastwestcenter.org/Amy Namur, Young Professionals Program participant at the East-West Center in Washington, explains that "Often, China's investments in coal-based infrastructure go against a country's national interest.

Microstructures and late-stage magmatic processes in layered mafic intrusions: Symplectites from the sept iles intrusion, Quebec, Canada

Abstract Replacive symplectites (vermicular intergrowths of two or more minerals) are an important feature of layered igneous intrusions, recording evidence of late-stage reactions between interstitial liquid and crystals. They are common throughout the Layered Series of the 564 Ma Sept Iles layered intrusion in Quebec, Canada, and fall into three types: oxy-symplectites, ‘Type I’ symplectites, and ‘Type II’ symplectites. Oxy-symplectites are comprised of magnetite and orthopyroxene, nucleate on olivine primocrysts, and form via the reaction Olivine + O2 → Orthopyroxene + Magnetite; Type I symplectites (of which there are 3 distinct categories) are comprised of anorthitic plagioclase with pyroxene, amphibole, or olivine vermicules, grow from primocryst oxide grains, and replace primocryst plagioclase; and Type II symplectites (of which there are 2 distinct categories) are comprised of anorthitic plagioclase with orthopyroxene ± amphibole vermicules, grow from primocryst olivine grains, and replace primocryst plagioclase. Rare symplectites composed of biotite and plagioclase are also present. Symplectite growth occurred at 700–1030°C with pressure constraints of 1–2 kbar. We propose that Type I symplectites, and some Type II symplectites, formed from the interaction of primocrysts with residual Fe-rich liquid as a consequence of differential loss of an immiscible Si-rich liquid conjugate from the crystal mush. However, redistribution and concentration of hydrous fluids in incompletely solidified rock, or an increase in water activity of the interstitial melt, may be more plausible processes responsible for the formation of replacive symplectites comprising abundant hydrous mineral assemblages.Bill and Melinda Gates Foundation Magdalene College, University of Cambridge FWO Odysseus gran

Comment on “Characterization of Interfacial Properties in Fiber-Reinforced Cementitious Composites”

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/65561/1/j.1151-2916.1993.tb03959.x.pd

Compositional and kinetic controls on liquid immiscibility in ferrobasalt-rhyolite volcanic and plutonic series

peer reviewedWe present major element compositions of basalts and their differentiation products for some major tholeiitic series. The dry, low-pressure liquid lines of descent are shown to approach or intersect the experimentally-defined compositional space of silicate liquid immiscibility. Ferrobasalt-rhyolite unmixing along tholeiitic trends in both volcanic and plutonic environments is supported by worldwide occurrence of immiscible globules in the mesostasis of erupted basalts, unmixed melt inclusions in cumulus phases of major layered intrusions such as Skaergaard and Sept Iles, and oxide-rich ferrogabbros closely associated with plagiogranites in the lower oceanic crust. Liquid immiscibility is promoted by low-pressure, anhydrous fractional crystallization that drives the low Al2O3, high FeO liquids into the two-liquid field. Kinetic controls can be important in the development of two-liquid separation. The undercooling that occurs at the slow cooling rates of plutonic environments promotes early development of liquid immiscibility at higher temperature. In contrast rapid cooling in erupted lavas leads to large undercoolings and liquid immiscibility develops at significantly lower temperatures. Unmixing leads to the development of a compositional gap characterized by the absence of intermediate compositions, a feature of many tholeiitic provinces. The compositions of experimental unmixed silica-rich melts coincide with those of natural rhyolites and plagiogranites with high FeOtot and low Al2O3, suggesting the potential role of large-scale separation of immiscible Si-rich liquid in the petrogenesis of late-stage residual melts. No trace of the paired ferrobasaltic melt is found in volcanic environments because of its uneruptable characteristics. Instead, Fe-Ti±P-rich gabbros are the cumulate products of immiscible Fe-rich melts in plutonic settings. The immiscibility process may be difficult to identify because both melts crystallize the same phases with the same compositions. The two liquids might form incompletely segregated emulsions so that both liquids continue to exchange as they crystallize and remain in equilibrium. Even if segregated, both melts evolve on the binodal surface and exsolve continuously with decreasing temperature. The two liquids do not differentiate independently and keep crystallizing the same phases with differentiation. Further evolution by fractional crystallization potentially drives the bulk liquid out of the two-liquid field so that very late-stage liquids could evolve into the single melt phase stability field. © 2013 Elsevier Ltd

Peran teknologi pembelajaran dalam meningkatkan literasi digital matematika

Perkembangan teknologi informasi yang semakin pesat pada era globalisasi saat ini tidak mampu dihindari lagi pengaruhnya terhadap dunia pendidikan. Tuntutan global menuntut dunia pendidikan untuk selalu senantiasa menyesuaikan perkembangan teknologi terhadap usaha dalam peningkatan mutu pendidikan, terutama penyesuaian penggunaan teknologi informasi dan komunikasi. Tujuan dari penelitian ini adalah untuk mengetahui peningkatan hasil belajar siswa melalui penerapan media pembelajaran berbasis teknologi. Penelitian ini merupakan penelitian tindakan kelas (PTK), dengan subjek sebanyak 39 orang di SMA Dwijendra Tahun Pelajaran 2021/2022. Dari hasil analisis data yang dilakukan didapatkan hasil diantaranya: terjadi peningkatan sebesar 7,88% pada siklus 1, serta sebesar 19,25% pada siklus 2. Dari hasil ini terlihat peran teknologi khususnya media pembelajaran berbasis teknologi dalam meningkatkan hasil belajar siswa. The rapid development of information technology in the current era of globalization cannot be avoided anymore its influence on the world education. Global demands require the world of education to always adapt technological developments to efforts to improve the quality of educations especially adjusments to the use of information and communication technology. The purpose of this study was to determine the improvement in students’ learning outcome through the application of teachnology-based learning media. The research is a classroom action research, with 39 subjects in SMA Dwijendra Bualu. From the data analysis, the results obtained, namely an increase of 7.88% in cycle 1, and 19.25% in cycle 2. From these results it can be seen the role of technology, especially technology-based learning media in improveing student learning outcome

RELAÇÕES CONTRATUAIS E DIREITO INTERTEMPORAL: O ART. 2.035 DO CÓDIGO CIVIL E A PROTEÇÃO DO DIREITO ADQUIRIDO

O presente artigo enfoca a discussão doutrinária e jurisprudencial travada após aentrada em vigor do artigo 2.035 do Código Civil brasileiro de 2002. Partindo de umaanálise das relações contratuais sob a ótica da metodologia do direito civilconstitucional,busca-se a revisão de alguns conceitos e postulados do direitointertemporal clássico, para afirmar a constitucionalidade e conveniência do artigo2.035, bem como a ausência de violação do direito adquirido, que passa a ser visto demodo contextualizado, inserido e ponderado no ordenamento jurídico, em pé deigualdade com outras garantias e adstrito aos princípios constitucionais