scholarly journals On-site sanitation density and groundwater quality: evidence from remote sensing and in situ observations in the Thiaroye aquifer, Senegal

2020 ◽  
Vol 10 (4) ◽  
pp. 927-939
Author(s):  
Mor Talla Diaw ◽  
Seynabou Cissé-Faye ◽  
Cheikh Becaye Gaye ◽  
Seydou Niang ◽  
Abdoulaye Pouye ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Low Income ◽  
Urban Areas ◽  
Low Cost ◽  
Scientific Evidence ◽  
Shallow Groundwater ◽  
Visual Interpretation ◽  
Guideline Value ◽  
Ground Truthing ◽  
Optical Satellite Images

Abstract In rapidly urbanising low-income towns and cities, there remains an absence of scientific evidence and regulatory structures to sustain the quality and quantity of groundwater used for low-cost water supplies and to reconcile this with continued use of the subsurface for low-cost sanitation. Here, we analyse the relationship between the density of on-site sanitation and shallow groundwater quality in the Thiaroye aquifer of Quaternary sands in Dakar, Senegal. On-site sanitation was mapped using object-oriented classification and visual interpretation of high-resolution, optical satellite images and ground-truthing surveys. Groundwater quality was assessed over a three-year period (2017–2019) from a network of 61 sources comprising boreholes, dug-wells, hand tubewells and piezometers. More than 253,000 on-site sanitation facilities are identified over an area of 520 km2 with densities ranging from 1 to 70 per hectare. A moderate, statistically significant linear relationship (r2 = 0.55, p « 0.01) is found between the density of on-site sanitation facilities and nitrate concentrations in sampled groundwater sources. Groundwater contamination beyond the WHO drinking-water guideline value (50 mg/L) occurs where densities of on-site sanitation facilities exceed 4 (±4) per hectare, a threshold commonly surpassed in peri-urban areas underlain by the Thiaroye aquifer of Dakar.

scholarly journals Multidisciplinary Approach to Neoadjuvant Endocrine Therapy in Breast Cancer: A Comprehensive Review

2016 ◽  
Vol 38 (12) ◽  
pp. 615-622 ◽  
Author(s):  
Tomás Reinert ◽  
Susana Ramalho ◽  
Rodrigo Gonçalves ◽  
Carlos Barrios ◽  
Marcia Graudenz ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Endocrine Therapy ◽  
Low Income ◽  
Hormone Receptor ◽  
Urban Areas ◽  
Low Cost ◽  
Locally Advanced Breast Cancer ◽  
Locally Advanced ◽  
Breast Cancers ◽  
Neoadjuvant Endocrine Therapy

AbstractBreast cancer is the most common type of cancer and the leading cause of cancer-related death among women worldwide. Hormone receptor-positive (HR+) tumors represent the most common form of this disease, with more than 70% of breast cancers expressing these receptors. Response and benefit to neoadjuvant chemotherapy (NCT) varies according to HR expression, with lower responses in luminal tumors as compared with hormone receptor-negative (HR-) and human epidermal growth factor receptor 2-positive (HER2+) tumors. Neoadjuvant endocrine therapy (NET) is an option for selected patients with HR+ locally advanced breast cancer. Neoadjuvant endocrine therapy has a favorable toxicity profile, and is associated with benefits such as having low cost and being more easily available even for cancer care professionals outside major urban areas or tertiary centers. These factors are particularly relevant, as 70% of breast cancer deaths occur in women from low-income and middle-income countries. Additionally, NET is being increasingly explored, not simply to allow for less extensive surgery, but also as a scientific tool, with the use of biomarkers to predict outcomes in adjuvant trials and for the individual patient. This review details the current and most relevant evidence about NET for breast cancer as well as the future directions of this field.

scholarly journals On Transforming Unused Urban Spaces to Social Housing for Self-Employed People in Ho Chi Minh City: An Architectural Space Design Proposal

2021 ◽  
Vol 13 (21) ◽  
pp. 12175
Author(s):  
Le-Minh Ngo ◽  
Hai-Binh Nguyen ◽  
Thi-Phuong Uyen Nguyen ◽  
Thi-Minh Dieu Nguyen
Keyword(s):  
Low Income ◽  
Social Housing ◽  
Urban Areas ◽  
Low Cost ◽  
Legal Framework ◽  
Operating Conditions ◽  
Urban Spaces ◽  
Ho Chi Minh City ◽  
Residential Areas ◽  
Property Market

As with many metropolitan areas, social housing (SH) provision, which can improve living standards and social welfare, is crucial for urban socio-economic development strategies in Ho Chi Minh City (HCMC). However, there have been issues relating to promoting social housing in the Vietnamese context resulting from the property market and the design. The former is a failure to attract investors. The latter relates to lacking housing models for the mid- and low-income communities. Currently, many low-income families who have low access to the general job market in HCMC have to make a living by running their own business at home. This situation leads to low-income housing establishments in some residential areas. Thus, the planning approach in social housing needs to solve both the demand for low-cost housing and promoting self-employed activities. In this paper, mixed methods, including observation, questionnaires, interviews, data aggregation, and comparison, were conducted with supporting legal conditions and corresponding operating conditions to propose appropriate designs for the SH for self-employed people in HCMC. First, observing and analyzing urban spaces helped identify the unused urban areas that solve the investment issue. Then, after studying the development of social housing in different contexts via the questionnaire and in-depth interviews, self-employed households’ basic information and their business needs in using SH spaces were identified in some districts. Then, based on the legal framework and practical projects, optimal space designs were formed.

scholarly journals COMBATING SQUATTERS IN MALAYSIA: DO WE HAVE ADEQUATE POLICIES AS INSTRUMENT?

2017 ◽  
Vol 16 (6) ◽  
Author(s):  
Yusfida Ayu Abdullah ◽  
Julieven Nonoi Kuek ◽  
Hazlina Hamdan ◽  
Farrah Lyana Mohd Zulkifli
Keyword(s):  
Affordable Housing ◽  
Low Income ◽  
Urban Areas ◽  
Low Cost ◽  
National Plan ◽  
Housing Provision ◽  
The Public ◽  
Low Income Groups ◽  
Low Cost Housing ◽  
The Government

The year 2014 had witnessed the scenario where most of the states in Malaysia pledged to declare themselves as Zero Squatter state. Thus far, most of the states in Malaysia are still striving to achieve the goal. The government has therefore aspires to reach the target by the year 2020. The Malaysian government under its 5-years National Plan has since introduced the low, medium and high cost housing categories. The housing policy was therefore designed to provide the public of all income levels, particularly the low-income groups, with affordable housing as part of an effort to eradicate squatters. However, despite the various policies, the number of squatter families remains large, especially in the urban areas. This paper therefore, intends to examine the instruments put forward by the government to eliminate squatters and assess the roles of related parties assigned to achieve the government’s mission. Through a qualitative approach, results demonstrated that Malaysia has various types of polices and guidance at both the federal and state levels in relation to low-cost housing provision. These would have supposed to help reduce the number of squatters in the country. However, to date, Malaysia is still experiencing problems with squatters. This calls for further investigation.

The Characteristics of Residents at Low Cost Housing in Jakarta - Indonesia and their Culture to Green Principles

2015 ◽  
Vol 747 ◽  
pp. 105-108
Author(s):  
Nina Nurdiani
Keyword(s):  
Life Cycle ◽  
Low Income ◽  
Urban Areas ◽  
Nuclear Family ◽  
Low Cost ◽  
Life Stage ◽  
Living Environment ◽  
Sustainable Living ◽  
Low Cost Housing ◽  
The Government

Low cost housing in Jakarta – Indonesia is provided by the government for low-income people in urban areas, in line with the program to redevelop or renew slum areas or densely populated neighborhoods for supporting sustainable living environment in urban area. Sustainable living environment will be achived if people who live in low cost housing have the culture which support and apply green principles. The purpose of research is to give knowledge about the change of life-cycle and life stage of low-income people as the first residents as long as they stay in vertical housing, and their culture to green principles. The research objectives are to determine the characteristics of residents as urban people and the factors which influenced, to know how their culture to apply green principles. The research was conducted at four low cost housing in Jakarta. The results showed that currently the families still have characters as informal-traditional, nuclear family and extended family. The residents generally are as employee or entrepreneur in informal sector, and still as low income family. Demographic, socio-culture, and economic are the factors which influenced life-cycle and life stage of low-income people as urban society. People who live in low cost housing still have traditional culture which support to green principles.

scholarly journals URBAN LOW-COST HOUSING EFFECT MENTAL HEALTH

2021 ◽  
Vol 19 ◽  
Author(s):  
Nur Masyitah Ghazali ◽  
Marlyana Azyyati Marzukhi ◽  
Oliver Hoon Leh Ling
Keyword(s):  
Mental Health ◽  
Low Income ◽  
Urban Areas ◽  
Mental Health Problems ◽  
Low Cost ◽  
Sample Selection ◽  
Group Living ◽  
Income Group ◽  
Low Income Groups ◽  
Low Cost Housing

As the number of people moving to urban areas increases by the year, it also increases the prevalence of mental health problems worldwide. Low-income groups in urban areas have had to choose to live in low-cost housing due to the higher cost of living. This study aims to understand the effect of living in lowcost housing. The objectives are to study and analyse mental health conditions for the low-income group living in low-cost housing in an urban area. This study was conducted at the Federal Territory of Kuala Lumpur, Malaysia. The questionnaire used is an adaptation of the Depression, Anxiety, and Stress Scale (DASS-21), and the sample selection used homogenous sampling. The site selection is based on the housing scheme's characteristics: location, density, property age, and surrounding land use. The data collected were analysed using correlation analysis to determine the relationship between urban low-cost housing living and mental health. The results have shown that 57.8 per cent of the respondents have depression, 65.7 per cent have anxiety, and 55.9 per cent have stress with various severity. The findings show that low-cost housing associated with poorer mental health is caused by several factors.

scholarly journals Housing Satisfaction and Willingness to Move to Low-cost Rental Apartments of Slum Dwellers in Semarang Urban Area

2018 ◽  
Vol 159 ◽  
pp. 01048
Author(s):  
Asnawi Manaf ◽  
Hadi Wahyono ◽  
Ita Puspita Sari ◽  
Dias Aprilia
Keyword(s):  
Low Income ◽  
Urban Areas ◽  
Low Cost ◽  
Case Study Research ◽  
Housing Satisfaction ◽  
Slum Dwellers ◽  
Low Income Families ◽  
The Government ◽  
Surrounding Areas

This article examines one of the approaches commonly taken by the government to reduce the number of slums in urban areas, namely the provision of subsidised/affordable rental apartments. This article focuses on the assessment of to what extent the approach is relevant to the perceived problem (needs) of the target group (low income family) and what are the socio-economic characteristics of those living in slums and what are their preferences for moving to affordable rental apartments or remains to stay in the current slums. Since the problems are complex and dynamic, the case study research methods has been utilised and the low-income families living in slums in surrounding areas of Rusunawa Kaligawe (affordable rental apartment) in Semarang have been used as the unit of analysis.

scholarly journals COMBATING SQUATTERS IN MALAYSIA: DO WE HAVE ADEQUATE POLICIES AS INSTRUMENT?

2017 ◽  
Vol 15 ◽  
Author(s):  
Yusfida Ayu Abdullah ◽  
Julieven Nonoi Kuek ◽  
Hazlina Hamdan ◽  
Farrah Lyana Mohd Zulkifli
Keyword(s):  
Affordable Housing ◽  
Low Income ◽  
Urban Areas ◽  
Low Cost ◽  
National Plan ◽  
Housing Provision ◽  
The Public ◽  
Low Income Groups ◽  
Low Cost Housing ◽  
The Government

The year 2014 had witnessed the scenario where most of the states in Malaysia pledged to declare themselves as Zero Squatter state. Thus far, most of the states in Malaysia are still striving to achieve the goal. The government has therefore aspires to reach the target by the year 2020. The Malaysian government under its 5-years National Plan has since introduced the low, medium and high cost housing categories. The housing policy was therefore designed to provide the public of all income levels, particularly the low-income groups, with affordable housing as part of an effort to eradicate squatters. However, despite the various policies, the number of squatter families remains large, especially in the urban areas. This paper therefore, intends to examine the instruments put forward by the government to eliminate squatters and assess the roles of related parties assigned to achieve the government’s mission. Through a qualitative approach, results demonstrated that Malaysia has various types of polices and guidance at both the federal and state levels in relation to low-cost housing provision. These would have supposed to help reduce the number of squatters in the country. However, to date, Malaysia is still experiencing problems with squatters. This calls for further investigation.

‘Top-down’ planning for scalable sustainable sanitation in high-density low-income urban areas: is it more appropriate than ‘bottom-up’ planning?

2018 ◽  
Vol 8 (2) ◽  
pp. 165-175 ◽  
Author(s):  
Duncan Mara
Keyword(s):  
Developing Countries ◽  
Low Income ◽  
Urban Areas ◽  
Universal Access ◽  
Low Cost ◽  
High Density ◽  
Top Down ◽  
Bottom Up ◽  
The Sustainable Development ◽  
Sanitation Systems

Abstract We argue that, if the sanitation target of the Sustainable Development Goals (universal access to ‘safely-managed’ sanitation by 2030) is to have any chance of success, then a community-sensitive top-down planning approach has to be adopted for sanitation provision in high-density low-income urban areas in developing countries, as ‘bottom-up’ planning is much more time-consuming and not yet successfully proven at scale. In high-density low-income urban areas, there is only a limited choice for safely-managed sanitation: (i) simplified/condominial sewerage (which becomes cheaper than on-site sanitation systems at the relatively low population densities of 160–200 people per ha), (ii) low-cost combined sewerage (if it is cheaper than separate simplified sewerage and stormwater drainage), (iii) community-managed sanitation blocks, and (iv) container-based sanitation (the last two of which are suitable, especially in slums, when neither simplified sewerage nor low-cost combined sewerage is affordable or technically feasible). These four sustainable sanitation options are as scalable in developing countries as conventional sewerage has been in industrialized countries.

scholarly journals Faecal contamination pathways of shallow groundwater in low-income urban areas: implications for water resource planning and management

2021 ◽  
Author(s):  
Jacintha Gumoteyo Nayebare ◽  
Michael M. Owor ◽  
Robinah Kulabako ◽  
Richard Graham Taylor
Keyword(s):  
Linear Regression ◽  
Low Income ◽  
Urban Areas ◽  
Shallow Groundwater ◽  
Multiple Linear Regression Model ◽  
Resource Planning ◽  
Water Sources ◽  
Linear Regression Models ◽  
Faecal Contamination ◽  
E Coli

Abstract Shallow groundwater is vulnerable to faecal contamination, especially in low-income urban areas where use of on-site sanitation facilities is high. This paper explores statistical relationships between potential factors influencing contaminant pathways (i.e., variables) and observed faecal contamination of shallow groundwater, represented by nitrate concentrations and counts of Escherichia coli (i.e., response function) in a small, growing town in Uganda over dry and wet seasons in 2018 and 2019. A statistically significant (p = 0.004) multiple linear regression model from dry-season E. coli counts in 2018 identifies medium sanitary risk levels and modes of construction as significant pathways (p = 0.01). Water source depth (<20 m) and proximity (>10 m) to a pit latrine were also significant (p<0.05) in both hydrogeological formations. No significant linear regression models were established for NO3 during both seasons due to low pH and rapid infiltration velocities; inconsistent sample timing during the wet season impaired the significance of the statistical models of E. coli counts. We show that modes of construction of water sources and pit latrines play key roles in determining the quality of the shallow groundwater in urban environments. Greater emphasis is therefore required to improve the functionality and sustainability of on-site water sources and pit latrines.

scholarly journals Affordable Housing Policies in India: Challenges and Reform

2019 ◽  
Vol 8 (3) ◽  
pp. 2706-2712
Keyword(s):  
Affordable Housing ◽  
Low Income ◽  
Urban Areas ◽  
Low Cost ◽  
Urban Housing ◽  
Housing Affordability ◽  
Housing Sector ◽  
Housing Shortage ◽  
Indian Government ◽  
Great Opportunity

The housing sector is one of the most globally recognized sectors, which estimate the need for affordable housing of 96,150 units/day in urban areas at a global level. Although the task represents an enormous challenge, but it also constitutes a great opportunity for developing countries' economy. After agriculture, the housing sector is the second leading employer in India over a growth of 30 percent in the last decade. The aim of this paper is to study and provide a solution to the existing urban housing problem in India. It attempts to distinguish the problem of the massive urban housing shortage that exists mainly in the Low Income Groups and Economically Backward Sections and provide low-cost housing choices that can be made available with proper policies by Indian Government. The total housing shortage estimated after 2011 census was 18.78 million. The urban population of India has risen from 285 million to 377 million from 2001 to 2011with growth of 32 percent and by 2050; 900 million people will be surviving in urban areas. The rapid growth of urban migration is putting an enormous strain on urban planners to develop an infrastructure in Indian cities. Absence of urban planning can exacerbate existing scenario of housing shortage. Thus, the need arises for a broader and a more encompassing set of policies by which housing affordability can be measured. In this paper, different government schemes are discussed with existing and new reforms of tax policies like REITs, GST, RERA and Benami Transaction Act. A sustainable and accessible model for the affordable housing can be achieved in developing nations through proper implementation of government schemes.

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