Manila

The focus of this article is on Metropolitan Manila (or simply Manila), a region spanning 619 square kilometers and comprising sixteen cities and one municipality: specifically, the cities of Caloocan, Las Piñas, Malabon, Manila, Mandaluyong, Marikina, Makati, Muntinlupa, Navotas, Quezon City, Parañaque, Pasay, Pasig, San Juan, Taguig, and Valenzuela, and the municipality of Pateros. Metro Manila was constituted by presidential decree in 1975, but its constituent cities are significantly older. It is the Philippines’ largest urban area, with a population of about thirteen million in 2015, as well as the country’s economic core, producing 37.5 percent of the national gross national product (GDP). Socially and spatially, however, it is not at all like the rest of the country, given its relative wealth and spectacular inequality—the latter owing less to the extent of inequality than to its spatial organization, a particularly intensive form of class segregation where upper- and middle-class residential and commercial enclaves abut the informal settlements of the urban poor as a general pattern. This landscape took shape as a result of four processes: rapid population growth beginning in the 1950s and 1960s, monumental city-building under the Marcos regime, democratization, and urban restructuring in the 1990s and 2000s. These processes constituted what are perhaps the city’s two main social actors, the urban poor and middle class. These labels are more conventional than accurate. Most of the “urban poor” are not poor by official standards, and the term “middle class” is much too vague. These groups find definition relationally, particularly in space, as “squatters” (slum dwellers) and “villagers” (enclave residents). This division, while fundamentally spatial, elaborated around the divide between formal and informal housing, has become the most important social division in the city since the late 20th century. Hence this article considers each group in some depth. While Metro Manila’s importance to the Philippines is clear, lamentably it has been largely overlooked as a source of urban theory. Manila provides an example par excellence of “late urbanization.” Analytically, it belongs with a set of cities in Latin America and Southeast Asia having undergone rapid population growth in the mid-20th century, resulting in urban landscapes distinguished by precarious work and informal housing. Second, it represents a particularly vivid case of urban space and social relations being restructured by market forces. The commodification of land and labor has proceeded relatively unimpeded in Manila, and class dynamics have crystallized in space relatively uncomplicated by racial and ethnic, religious, and other lines of division. As a result, class contention is especially intense, and class segregation is extreme. We might see in this landscape one possible urban future.

Maximization of Water Productivity and Yield of Two Iceberg Lettuce Cultivars in Hydroponic Farming System Using Magnetically Treated Saline Water

Egypt has limited agricultural land, associated with the scarcity of irrigation water and rapid population growth. Hydroponic farming, seawater desalination and magnetic treatment are among the practical solutions for sustaining rapid population growth. In this regard, the main objective of the present research study was to design and construct a hierarchical engineering unit as a hydroponic farming system (soilless) to produce an iceberg lettuce crop using magnetically treated saline water. The treatments included four types of irrigation water: common irrigation water (IW1) with an electrical conductivity (EC) of 0.96 dS/m as a control treatment, magnetically treated common irrigation water (IW2) with an EC of 0.96 dS/m, saline water (IW3) with an EC of 4.56 dS/m and magnetically treated saline water (IW4) with an EC of 4.56 dS/m; three depletion ratios (DR) of field capacity (DR0 = 50%, DR1 = 60% and DR2 = 70%) and three slopes of hydroponic pipes (S1 = 0.0%, S2 = 0.025% and S3 = 0.075%). The results revealed that seawater contributed 7.15% to produce iceberg lettuce in the hydroponic system. The geometric parameter, the slope of the pipes, influenced the obtained luminous intensity by an average increase of 21% and 71% for S2 and S3, respectively, compared with the zero slope (horizontal pipes). Magnetization of irrigation water increased the total soluble solids (TSS) and enhanced the fresh weight and water productivity of both iceberg lettuce varieties used. The maximum percentages of TSS were 5.20% and 5.10% for lemur and iceberg 077, respectively, for the combination IW4DR2S2. The highest values of fresh weight and water productivity of 3.10 kg/m and 39.15 kg/m3 were recorded with the combinations IW3DR2S3 and IW4DR1S3, respectively, for lemur and iceberg lettuce. The percentages of these increases were 109.46% and 97.78%, respectively, when compared with the combination IW1DR0S1. The highest values of iceberg lettuce 077 fresh weight and water productivity were 2.93 kg/m and 36.15 kg/m3, respectively, which were recorded with the combination IW4DR1S3. The percentages of these increases were 112.32% and 120.56%, respectively, when compared with IW1DR0S1 (the control treatment).

ANALISIS DAYA DUKUNG DAN DAYA TAMPUNG LAHAN PERMUKIMAN KOTA DENPASAR

Denpasar City is the capital city of Bali Province which has a rapid population growth rate every year. Along with the rapid population growth, this has an impact on meeting the needs of housing and other regional service facilities. The increasing number of population automatically causes an increase in the need for housing. Analysis of residential land supporting capacity and supply capability needed to preserve the environment. This research was conducted with a quantitative approach which describes and describes the results in the form of numbers or nominal values by explaining clearly either with the help of pictures, tables, or graphs. The quantitative data described are the population, land area and land capability area to support and accommodate housing as a place to live in Denpasar City. Based on the results of the analysis using the overlapping method and scoring using a GIS application. Denpasar City potential land to be developed as a residential area after being adjusted to the settlement plan in the Denpasar City Spatial Plan is available for 454,73 hectares of the total area of Denpasar City of 12,521 hectares or about 3.63% of land in Denpasar city. The capacity of Denpasar City houses is able to accommodate around 44.736 housing units and 178.943 residents. There are 2 sub-districts that are not able to accommodate the population in 2030, namely South Denpasar and North Denpasar. However, cumulatively, Denpasar City is still able to accommodate population growth in 2030 in obtaining residential land. Keywords: Supporting Capacity and Supply Capability; Residential Land; Denpasar City.

The energy context of Turkish-Russian relations: is it cooperation or competition?

Energy requirements brought about by the industrialization and rapid population growth in developing countries such as Turkey have led to different processes. In particular, the inadequacy of underground sources of energy to meet the energy demand, Turkey is headed to energy imports. This situation makes Turkey dependent on outside day by day. European Union countries lacking in energy sources such as Turkey, are making various energy agreements in order to solve this problem. In these energy agreements, the source geography is the Asian continent, especially the Caucasus. Turkey, along with Russia, is the main actor on the energy route between East and West. Partnership on energy with Russia began in the 1960s has made Russia the dominant power for Turkey’s energy. This study examines the energy relationship between Turkey and Russia, where cooperation and rivalry are inevitable in terms of national and international interests. In this context, the factors that are subject to the energy relationship between the two countries were discussed in the study. The conclusion reached at the end of the study is that although the competition is at the forefront, the two countries have to cooperate as they are the main actors for the East-West energy route.

Rainwater Harvesting to Increase Freshwater Carrying Capacity on Small Islands (A Case Study of Pramuka Island)

Pramuka Island is a small island that is covered with dense settlements, inhabited by 1,715 people, and experiencing rapid population growth with increasing visits by tourists every year ]. As a result, there is a high demand for freshwater, leading to a large-scale exploitation of groundwater on the island. Yet, a research conducted by [1] had indicated that groundwater on Pramuka Island is below the minimum standards for drinking water. This report discusses the effectivity of a rainwater harvesting system as a solution to the freshwater carrying capacity of Pramuka Island. The discussion involves analysis of freshwater carrying capacity based on water balance calculations between freshwater supply with rainwater harvesting and potential freshwater demands for domestic usage, tourism, and other activities. The results revealed that the scenario of the whole island as a rainwater catchment area is enough to supply local freshwater demand for approximately 27 years.

3. From republican to Romantic

‘From republican to Romantic’ discusses how Enlightenment ideas came under pressure from the dramatic changes in American life during the early republic. Rapid population growth, westward expansion, urbanization, and industrialization tested the limits of Enlightenment thought, while new Romantic sensibilities shaped Americans’ response to their changing political and social realities. A shared concern during this period was the perceived absence of a truly “American” democratic culture, and this fostered efforts to build a variety of new intellectual institutions. The transcendentalists played a central role in trying to create a unifying intellectual culture befitting a new democracy, while the mental and moral worlds of Northerners and Southerners pulled farther apart over the issue of slavery.

Advances in the Application of Nanocatalysts in Photocatalytic Processes for the Treatment of Food Dyes: A Review

The use of food additives (such as dyes, which improve the appearance of the products) has become more prominent, due to the rapid population growth and the increase in demand for beverages and processed foods. The dyes are usually found in effluents that are discharged into the environment without previous treatment; this promotes mass contamination and alters the aquatic environment. In recent years, advanced oxidation processes (AOPs) have proven to be effective technologies used for wastewater treatment through the destruction of the total organic content of toxic contaminants, including food dyes. Studies have shown that the introduction of catalysts in AOPs improve treatment efficiency (i.e., complete decomposition without secondary contamination). The present review offers a quick reference for researchers, regarding the treatment of wastewater containing food dyes and the different types of AOPs, with different catalyst and nanocatalyst materials obtained from traditional and green chemical syntheses.

Carbon Dioxide and Methane Emissions during the Composting and Vermicomposting of Sewage Sludge under the Effect of Different Proportions of Straw Pellets

Owing to rapid population growth, sewage sludge poses a serious environmental threat across the world. Composting and vermicomposting are biological technologies commonly used to stabilize sewage sludge. The objective of this study was to assess the carbon dioxide (CO2) and methane (CH4) emissions from sewage sludge composting and vermicomposting under the influence of different proportions of straw pellets. Four treatments were designed, by mixing the initial sewage sludge with varying ratio of pelletized wheat straw (0, 25%, 50%, and 75% (w/w)). The experiment was conducted for 60 days, and Eisenia andrei was used for vermicomposting. The results revealed that the mixing ratio influenced CO2 (F = 36.1, p = 0.000) and CH4 (F= 73.9, p = 0.000) emissions during composting and CO2 (F= 13.8, p = 0.000) and CH4 (F= 4.5, p= 0.004) vermicomposting. Vermicomposting significantly reduced CH4 emissions by 18–38%, while increasing CO2 emissions by 64–89%. The mixing agent (pelletized wheat straw) decreased CO2 emission by 60–70% and CH4 emission by 30–80% compared to control (0%). The mass balance indicated that 5.5–10.4% of carbon was loss during composting, while methane release accounted for 0.34–1.69%, and CO2 release accounted for 2.3–8.65%. However, vermicomposting lost 8.98–13.7% of its carbon, with a methane release of 0.1–0.6% and CO2 release of 5.0–11.6% of carbon. The carbon loss was 3.3–3.5% more under vermicomposting than composting. This study demonstrated that depending on the target gas to be reduced, composting and vermicomposting, as well as a mixing agent (pelletized wheat straw), could be an option for reducing greenhouse gas emissions (i.e. CH4, CO2).

Demography and Health in the Context of Climate Change

The Sahel is subject to uniquely rapid population growth—putting pressure on already scarce resources. The challenge to meet the basic needs of a rapidly growing population is compounded by the impacts of climate change. Despite the recent gains in child survival in the Sahel, three contextual factors combine to suggest that mortality rates could rise—especially among the most vulnerable populations, that is, infants and the elderly. These factors are: an ongoing protracted nutrition crisis, rapid population growth, and impacts of climate change on food production. Evidence-based population policies and large-scale investment in family planning and girls’ secondary education have the potential to curb current demographic trends, making it easier for the region to adapt to climate change and achieve long-term food security.

Which Gridded Population Data Product Is Better? Evidences from Mainland Southeast Asia (MSEA)

The release of global gridded population datasets, including the Gridded Population of the World (GPW), Global Human Settlement Population Grid (GHS-POP), WorldPop, and LandScan, have greatly facilitated cross-comparison for ongoing research related to anthropogenic impacts. However, little attention is paid to the consistency and discrepancy of these gridded products in the regions with rapid changes in local population, e.g., Mainland Southeast Asia (MSEA), where the countries have experienced fast population growth since the 1950s. This awkward situation is unsurprisingly aggravated because of national scarce demographics and incomplete census counts, which further limits their appropriate usage. Thus, comparative analyses of them become the priority of their better application. Here, the consistency and discrepancy of the four common global gridded population datasets were cross-compared by combing the 2015 provincial population statistics (census and yearbooks) via error-comparison based statistical methods. The results showed that: (1) the LandScan performs the best both in spatial accuracy and estimated errors, then followed by the WorldPop, GHS-POP, and GPW in MSEA. (2) Provincial differences in estimated errors indicated that the LandScan better reveals the spatial pattern of population density in Thailand and Vietnam, while the WorldPop performs slightly better in Myanmar and Laos, and both fit well in Cambodia. (3) Substantial errors among the four gridded datasets normally occur in the provincial units with larger population density (over 610 persons/km2) and a rapid population growth rate (greater than 1.54%), respectively. The new findings in MSEA indicated that future usage of these datasets should pay attention to the estimated population in the areas characterized by high population density and rapid population growth.