scholarly journals Surface composition towards space pattern of street vendors in urban context

2021 ◽  
Vol 673 (1) ◽  
pp. 012038
Author(s):  
A U Khair ◽  
A H Fuad
Keyword(s):  
Surface Composition ◽  
Urban Context ◽  
Street Vendors ◽  
Space Pattern

scholarly journals LA DISCRIMINACIÓN INSTITUCIONAL DE VENDEDORAS AMBULANTES: LOS RETOS DE UNA «POBRE» MADRE POBRE TRABAJANDO EN LA CALLE

2009 ◽  
Vol 4 (8) ◽  
pp. 237
Author(s):  
Ana E. Hasemann Lara
Keyword(s):  
Informal Sector ◽  
Life Experience ◽  
Field Research ◽  
City Government ◽  
Capital City ◽  
Urban Context ◽  
Street Vendor ◽  
Street Vendors ◽  
Institutional Discrimination ◽  
Las Mujeres

Las circunstancias particulares de mujeres que se dedican a la venta ambulante, su preferencia por el trabajo en el sector informal como vendedoras ambulantes y el ejercicio de la maternidad en una situación de calle, no han sido discutidas a fondo como parte del contexto urbano de Honduras. Este ensayo se adentra en la cuestión de cómo el oficio de vendedora ambulante encaja en la experiencia de vida de las mujeres pobres, madres solas o acompañadas en una ciudad atravesada por la inseguridad económica y la exclusión social. De igual manera, se evalúa lo que significa ser madre y vendedora ambulante para dos grupos de mujeres —trece entrevistadas— que participaron en la investigación de campo que precedió el estudio, del cual se deriva este trabajo que intenta dar a conocer algunas de las justificaciones de su permanencia en el oficio que amenaza directamente su estatus de madres y de trabajadoras, empezando por situar el origen de los enfrentamientos entre estas mujeres y el Estado, y la consiguiente discriminación institucional que enfrentan como madres trabajadoras. Mencionaré ejemplos de dos entidades públicas—el Instituto Nacional de la Niñez y la Familia, IHNFA, y el gobierno municipal capitalino— que activamente ejercen la discriminación institucional. Este ensayo se enfoca, particularmente, en la estigmatización de lo que hoy es predominantemente un espacio laboral de mujeres en América Latina dentro del sector informal: la venta ambulante. Se sugiere que estas mujeres retan y renegocian las mismas normas sociales y culturales que estructuralmente e institucionalmente las han mantenido marginadas y dentro del sector laboral donde se encuentran.   ABSTRACT The particular circumstances for women who work as street vendors, their preference for working in the informal sector as street vendors and their experiences as mothers in the streets have not been seriously discussed as part of the urban context in Honduras. This paper takes an in-depth look into the question of how working as street vendors fits into the life experience of poor mothers, some single and others with partners, in a city characterized by economic insecurity and social exclusion. This paper assesses what it means to be a mother and a street vendor for two groups of women—thirteen women interviewed—participating in the field research preceding the study on which this paper is based. The author attempts to describe some of the justifications for women remaining in this economic activity—which directly threatens their status as mothers and workers. The author begins by studying the origin of conflicts between these women and the State, and the resulting institutional discrimination confronted by these working mothers. The author mentions examples of two public entities, the National Institute of Children and Family (Instituto Nacional de la Niñez y la Familia—IHNFA) and the capital city government, both of which actively engage in this institutional discrimination. This paper focuses particularly on the stigmatization of what is currently predominantly a space in which women work in Latin America—within the informal sector as street vendors. To address this topic, the author briefly discusses how markets function as institutions and, as such, how they are structured as gender carriers. It is suggested that these women are challenging and renegotiating the very social and cultural norms that have, structurally and institutionally, kept them marginalized and working in the informal sector.

Preferential Sputtering of Ni3Al Single Crystals Studied Using Atom-Probe Field-Ion Microscopy and XPS

1981 ◽  
Vol 39 ◽  
pp. 16-17
Author(s):  
M.P. Thomas ◽  
A.R. Waugh ◽  
M.J. Southon ◽  
Brian Ralph
Keyword(s):  
Single Crystals ◽  
Photoelectron Spectroscopy ◽  
Surface Composition ◽  
Depth Profiling ◽  
Analytical Techniques ◽  
Atom Probe ◽  
Probe Field ◽  
Preferential Sputtering ◽  
Argon Ion Bombardment ◽  
Argon Ion

It is well known that ion-induced sputtering from numerous multicomponent targets results in marked changes in surface composition (1). Preferential removal of one component results in surface enrichment in the less easily removed species. In this investigation, a time-of-flight atom-probe field-ion microscope A.P. together with X-ray photoelectron spectroscopy XPS have been used to monitor alterations in surface composition of Ni3Al single crystals under argon ion bombardment. The A.P. has been chosen for this investigation because of its ability using field evaporation to depth profile through a sputtered surface without the need for further ion sputtering. Incident ion energy and ion dose have been selected to reflect conditions widely used in surface analytical techniques for cleaning and depth-profiling of samples, typically 3keV and 1018 - 1020 ion m-2.

What catalysis needs from the electron microscopist

1988 ◽  
Vol 46 ◽  
pp. 694-695
Author(s):  
Alexis T. Bell
Keyword(s):  
Active Sites ◽  
Heterogeneous Catalysts ◽  
Catalyst Deactivation ◽  
Surface Composition ◽  
Internal Surface ◽  
Active Phase ◽  
Atomic Scale ◽  
Metal Catalyst ◽  
Internal Surface Area ◽  
Porous Support

Heterogeneous catalysts, used in industry for the production of fuels and chemicals, are microporous solids characterized by a high internal surface area. The catalyticly active sites may occur at the surface of the bulk solid or of small crystallites deposited on a porous support. An example of the former case would be a zeolite, and of the latter, a supported metal catalyst. Since the activity and selectivity of a catalyst are known to be a function of surface composition and structure, it is highly desirable to characterize catalyst surfaces with atomic scale resolution. Where the active phase is dispersed on a support, it is also important to know the dispersion of the deposited phase, as well as its structural and compositional uniformity, the latter characteristics being particularly important in the case of multicomponent catalysts. Knowledge of the pore size and shape is also important, since these can influence the transport of reactants and products through a catalyst and the dynamics of catalyst deactivation.

Book Reviews

2014 ◽  
Vol 7 (1) ◽  
pp. 115-122
Author(s):  
Book Reviews
Keyword(s):  
New York ◽  
Material Culture ◽  
Mexican Immigrants ◽  
Silicon Valley ◽  
Harvard University ◽  
University Of California ◽  
Street Vendors ◽  
Missing Link ◽  
Transit Migration

Janitors, Street Vendors, and Activists: The Lives of Mexican Immigrants in Silicon Valley by Christian Zlolniski Berkeley, CA, USA: University of California Press, 2006 ISBN 0520246438, 249 pp.The Archaeology of Xenitia: Greek Immigration and Material Culture Ed. by Kostis Kourelis Athens: Gennadius Library, 2008 ISBN 978-960-86960-6-8, 104 pp.  Transit Migration: The Missing Link between Emigration and Settlement by Aspasia Papadopoulou-Kourkoula New York: Palgrave Macmillan, 2008 ISBN 0-230-55533-0, 177 pp.How Professors Think: Inside The Curious World of Academic Judgment, 1st Edition by Michele Lamont Cambridge, MA: Harvard University Press, 2009 ISBN: 978-0674032668, 336 pp.

Pedagang Kaki Lima, Profil Entrepreneurship Sejati, Pelaku Ekonomi Kerakyatan, Ciptakan Jiwa Kewirausahaan Mandiri

2019 ◽  
Vol 20 (1) ◽  
pp. 30-35
Author(s):  
Agus Prasetya
Keyword(s):  
Qualitative Research ◽  
Data Analysis ◽  
Data Display ◽  
Job Seekers ◽  
Street Vendor ◽  
Street Vendors ◽  
The Social ◽  
Collection Data ◽  
Definition Of ◽  
Depth Interviews

This article is motivated by the fact that the existence of the Street Vendor (PKL) profession is a manifestation of the difficulty of work and the lack of jobs. The scarcity of employment due to the consideration of the number of jobs with unbalanced workforce, economically this has an impact on the number of street vendors (PKL) exploding ... The purpose of being a street vendor is, as a livelihood, making a living, looking for a bite of rice for family, because of the lack of employment, this caused the number of traders to increase. The scarcity of jobs, causes informal sector migration job seekers to create an independent spirit, entrepreneurship, entrepreneurship, with capital, managed by traders who are true populist economic actors. The problems in street vendors are: (1) how to organize, regulate, empower street vendors in the cities (2) how to foster, educate street vendors, and (3) how to help, find capital for street vendors (4) ) how to describe grief as a Five-Foot Trader. This paper aims to find a solution to the problem of street vendors, so that cases of conflict, cases of disputes, clashes of street vendors with Satpol PP can be avoided. For this reason, the following solutions must be sought: (1) understanding the causes of the explosions of street vendors (2) understanding the problems of street vendors. (3) what is the solution to solving street vendors in big cities. (4) describe Street Vendors as actors of the people's economy. This article is qualitative research, the social paradigm is the definition of social, the method of retrieving observational data, in-depth interviews, documentation. Data analysis uses Interactive Miles and Huberman theory, with stages, Collection Data, Display Data, Data Reduction and Vervying or conclusions.

THE URBAN CONTEXT OF HISTORICAL ACTIVISM

2003 ◽  
Vol 44 (3) ◽  
pp. 303-328
Author(s):  
Townsand Price-Spratlen
Keyword(s):  
Urban Context

Urban energetics applications and Geomatic technologies in a Smart City perspective

2015 ◽  
Vol 6 (1) ◽  
pp. 19-29 ◽  
Author(s):  
G. Bitelli ◽  
P. Conte ◽  
T. Csoknyai ◽  
E. Mandanici
Keyword(s):  
Smart City ◽  
Laser Scanning ◽  
Near Infrared ◽  
Three Dimensional ◽  
Energy Sector ◽  
Primary Objective ◽  
Airborne Lidar ◽  
City Management ◽  
Urban Context ◽  
Research Areas

The management of an urban context in a Smart City perspective requires the development of innovative projects, with new applications in multidisciplinary research areas. They can be related to many aspects of city life and urban management: fuel consumption monitoring, energy efficiency issues, environment, social organization, traffic, urban transformations, etc. Geomatics, the modern discipline of gathering, storing, processing, and delivering digital spatially referenced information, can play a fundamental role in many of these areas, providing new efficient and productive methods for a precise mapping of different phenomena by traditional cartographic representation or by new methods of data visualization and manipulation (e.g. three-dimensional modelling, data fusion, etc.). The technologies involved are based on airborne or satellite remote sensing (in visible, near infrared, thermal bands), laser scanning, digital photogrammetry, satellite positioning and, first of all, appropriate sensor integration (online or offline). The aim of this work is to present and analyse some new opportunities offered by Geomatics technologies for a Smart City management, with a specific interest towards the energy sector related to buildings. Reducing consumption and CO2 emissions is a primary objective to be pursued for a sustainable development and, in this direction, an accurate knowledge of energy consumptions and waste for heating of single houses, blocks or districts is needed. A synoptic information regarding a city or a portion of a city can be acquired through sensors on board of airplanes or satellite platforms, operating in the thermal band. A problem to be investigated at the scale A problem to be investigated at the scale of the whole urban context is the Urban Heat Island (UHI), a phenomenon known and studied in the last decades. UHI is related not only to sensible heat released by anthropic activities, but also to land use variations and evapotranspiration reduction. The availability of thermal satellite sensors is fundamental to carry out multi-temporal studies in order to evaluate the dynamic behaviour of the UHI for a city. Working with a greater detail, districts or single buildings can be analysed by specifically designed airborne surveys. The activity has been recently carried out in the EnergyCity project, developed in the framework of the Central Europe programme established by UE. As demonstrated by the project, such data can be successfully integrated in a GIS storing all relevant data about buildings and energy supply, in order to create a powerful geospatial database for a Decision Support System assisting to reduce energy losses and CO2 emissions. Today, aerial thermal mapping could be furthermore integrated by terrestrial 3D surveys realized with Mobile Mapping Systems through multisensor platforms comprising thermal camera/s, laser scanning, GPS, inertial systems, etc. In this way the product can be a true 3D thermal model with good geometric properties, enlarging the possibilities in respect to conventional qualitative 2D images with simple colour palettes. Finally, some applications in the energy sector could benefit from the availability of a true 3D City Model, where the buildings are carefully described through three-dimensional elements. The processing of airborne LiDAR datasets for automated and semi-automated extraction of 3D buildings can provide such new generation of 3D city models.

PENGARUH KONFIGURASI DAN VISIBILITAS RUANG PADA AKSESIBILITAS, Studi Kasus pada Kawasan XT Square Yogyakarta

2018 ◽  
Vol 12 (1) ◽  
pp. 67
Author(s):  
Widi Cahya Yudhanta
Keyword(s):  
Use Of Space ◽  
Indoor Space ◽  
The People ◽  
Low Visibility ◽  
Space Pattern ◽  
Outdoor Space ◽  
Shape Influence

Abstract: XT Square is a kind of building having cultural commerciality function. The existence of this building is very important in supporting artists who live within it. Layout pattern becomes one of accessibility factors in XT Square area. Configuration and visibility shape influence the use of space pattern and people’s interest pattern in accessing every space in the building. The setting system between indoor space and outdoor space will give an easy effort for the people in living in and recognizing the space that it can be accessed comfortably. Configuration and visibility approachs are used in order to analyse the accessibility level of the space usage in that area. The result of the visibility and configuration analysis shows that there are many spaces having low integration that blocks do not integrated strongly and low visibility influences the appearance of the building in that area. This research suggest to open the visibility barrier and give high visibility that it can be recognized.Keywords: configuration, accessibility, visibility, system setting Abstraksi: XT Square merupakan bangunan dengan fungsi komersial budaya. Keberadaanya menjadi sangat penting guna mendukung pengrajin kesenian dan budaya di Kota Yogyakarta. Pola layout menjadi salah satu faktor aksesibilitas dalam kawasan XT Square. Bentuk konfigurasi dan visibilitas mempengaruhi pola pengunaan ruang dan pola keterarikan orang dalam mengakses setiap ruang dalam kawasan. Sistem setting antar ruang dalam dan ruang luar menjadikan kemudahan penguna dalam menempati ruang dan pengenalan ruang sehingga ruang menjadi nyaman untuk diakses. Pendekatan yang digunakan adalah pendekatan konfigurasi dan visibilitas, guna menganalisis tingkat aksesibilitas pengunaan ruang dalam kawasan. Hasil analisis visibilitas dan konfigurasi menunjukkan bahwa terdapat banyak ruang dengan integrasi lemah sehingga blok tidak saling terintegrasi dengan kuat serta rendahnya visibilitas setiap bangunan dalam kawasan. Penelitian ini memberikan rekomendasi dengan membuka pengahalang visibilitas dan memberi kantung tangkapan visibilitas agar ruang mudah dikenali.Kata kunci: konfigurasi, aksesibilitas, visibilitas, sistem setting

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