This document provides a summary of a systematic literature review on socio-spatial causes and effects of urban bicycling. It conducted searches of academic journals in the Web of Science database using combinations of the keyword "bicycle" with other keywords related to built environment, social environment, and personal factors. A total of 76 relevant articles were identified and categorized. The review found the most publications on topics related to community, gender, infrastructure, density, and built environment. Emerging topics included bicycling and public space, gentrification, social interaction, and emotions. Most literature has been published in the last 5-10 years, indicating a growing interest in research on urban cycling.
One of the first laws adopted by the new political leadership in Ukraine
in the aftermath of the Revolution of Dignity in 2014 was the new concept of local
governance reform and the organization of territorial authority in Ukraine. The aforementioned law, as well as official declarations by top politicians on the necessity of
empowering Ukrainian citizens to take part in the decision-making process and shape
their local communities, led to positive expectations regarding the transformation of
local governance in Ukraine. Therefore, this article addresses the issue of the legal
basis framing the functioning of civil society in Ukraine, focusing on major attempts
to conduct reform and on the main outcomes of implemented actions. Additionally,
emphasis is placed on the current state of cooperation between social and political
actors, and the trends in civil participation in the decision-making process regarding
decentralization and local governance reform in Ukraine.
“We are hope, you are the eternal khan.” Authoritarian regimes and protest op...Przegląd Politologiczny
The aim of this text is to analyze the political determinants deciding the functioning of the
opposition and contentious practices in undemocratic regimes of Central Asia. The analysis is based on
five countries with varying degrees of authoritarianism and allows us to trace the relations between the
political context and protest activities, which in the different forms depending on the local structure of
power, have taken place in all five of the countries in the region. The example of Central Asian countries supports the ideas about the patterns of protest being dependent on the type of political regime.
Moreover, one may observe the growing role of Internet activism in informing and mobilizing public
opinion, encouraging the expression of opinion, collecting various resources, provoking support, and
building a network of relations within the civil society. Finally, the research shows that the more repressive the regime is, the smaller the opportunity for using traditional forms of protest, and in extreme
cases contestation is limited to the Internet.
One of the first laws adopted by the new political leadership in Ukraine
in the aftermath of the Revolution of Dignity in 2014 was the new concept of local
governance reform and the organization of territorial authority in Ukraine. The aforementioned law, as well as official declarations by top politicians on the necessity of
empowering Ukrainian citizens to take part in the decision-making process and shape
their local communities, led to positive expectations regarding the transformation of
local governance in Ukraine. Therefore, this article addresses the issue of the legal
basis framing the functioning of civil society in Ukraine, focusing on major attempts
to conduct reform and on the main outcomes of implemented actions. Additionally,
emphasis is placed on the current state of cooperation between social and political
actors, and the trends in civil participation in the decision-making process regarding
decentralization and local governance reform in Ukraine.
“We are hope, you are the eternal khan.” Authoritarian regimes and protest op...Przegląd Politologiczny
The aim of this text is to analyze the political determinants deciding the functioning of the
opposition and contentious practices in undemocratic regimes of Central Asia. The analysis is based on
five countries with varying degrees of authoritarianism and allows us to trace the relations between the
political context and protest activities, which in the different forms depending on the local structure of
power, have taken place in all five of the countries in the region. The example of Central Asian countries supports the ideas about the patterns of protest being dependent on the type of political regime.
Moreover, one may observe the growing role of Internet activism in informing and mobilizing public
opinion, encouraging the expression of opinion, collecting various resources, provoking support, and
building a network of relations within the civil society. Finally, the research shows that the more repressive the regime is, the smaller the opportunity for using traditional forms of protest, and in extreme
cases contestation is limited to the Internet.
Analyzing the indicators walkability of cities, in order to improving urban ...IJMER
Urban design is a technique and knowledge seeking to organize and improve urban qualities and increase the quality of citizenship life. Based on the perspectives and objectives of urban design, the dominant intention in all urbanism activities is to reach high humanistic and social dimensions. In fact, what give meaning to a city are the social aspects raised in recent urban activities, in addition to the physical and visual body of it. Over the past decade the quality of the walking environment has become
a significant factor in transportation planning and design in developed countries. It is argued that the pedestrians’ environment has been ignored in favors of automobile. The purpose of this study was to examine the effects of walkability on property values and investment returns. Research method is descriptive. The method of collected data is field. Also, were used questionnaire tools in order to
collecting data. On the other hand, was referred to municipality 9 region due to, studied area was located in this urban region. In continue, was used SWOT technique in order to analyzing questionnaire. At finally, proposed
strategies in order to improving urban space qualif
Analyzing the indicators walkability of cities, in order to improving urban v...IJMER
Urban design is a technique and knowledge seeking to organize and improve urban qualities
and increase the quality of citizenship life. Based on the perspectives and objectives of urban design, the
dominant intention in all urbanism activities is to reach high humanistic and social dimensions. In fact,
what give meaning to a city are the social aspects raised in recent urban activities, in addition to the
physical and visual body of it. Over the past decade the quality of the walking environment has become
a significant factor in transportation planning and design in developed countries. It is argued that the
pedestrians’ environment has been ignored in favors of automobile. The purpose of this study was to
examine the effects of walkability on property values and investment returns. Research method is
descriptive. The method of collected data is field. Also, were used questionnaire tools in order to
collecting data. On the other hand, was referred to municipality 9 region due to, studied area was
located in this urban region.
In continue, was used SWOT technique in order to analyzing questionnaire. At finally, proposed
strategies in order to improving urban space qualify.
This is the briefing presentation of the lecture seminar that Dr Calzada from the University of Oxford (UK) Future of Cities & COMPAS and Ikerbasque, Basque Foundation for Science and Dr Casado from the University of the Basque Country, Philosophy Department delivered at the University of Iceland in Reykjavik on the 27th Sept 2013. They presented the #research #project titled #Basque & #Iceland #Connection after one week of full time #fieldwork #research conducting interviews in Reykjavik from 22nd-29th Sept. The procedure will continue in the Basque Country with the same methodology.
This presentation became a paper that will be published shortly.
Impact of Interstate Bus terminal on the Builtform of Residential Neighbourho...Shivika Mehrotra
In the developing countries like India, urbanization is taking place, rapidly. There are various reasons behind this urbanization. In the process, the built form and land use inside the cities are observing rapid transformation. Among many other factors behind this transformation, one key factor is transport nodes. A new transport node, when introduce inside a city, the surrounding area experiences very fast changes in built form as well as in land use. One such case can be found near ISBT, Gomtinagar, Lucknow. The area, once the pride of Lucknow due to Battle of Chinhat ;- now is experiencing rapid change in built form and land use due to the introduction of ISBT, Gomtingar. The area is situated on Faizabad Road between two very famous and developed residential zones of lucknow i.e. Indiranagar and Gomtinagar. The area has large number of old settlements like Patel Nagar, Surender nagar, Mulayam Nagam, Ismailganj, Kamta etc. Lucknow High Court is situated across the road of the above mentioned settlement areas. Apart from Lucknow High Court there are mall, government offices, private offices etc. in the area. There are also many commercial buildings nearby. People coming to Lucknow High Court and ISBT often stays in the above mentioned settlements. As a result, there are many changes occurring in those settlements. One can see the changes in terms of built form, building typologies, land use, building use etc. This phenomenon requires immediate academic attention for understanding the extent of impact of such transportation nodes on near-by residential zones. It might lead to formulate a road map for future built forms and land use in similar cases. The study will be conducted using spatial analysis method and Correlation method. The probable frame work of the study will be based on plotting various land use and built form over a period of time. The outcome of the study will help us to have a better understanding of how land use and built form changes over time due to presence of a stimulae like a transportation node. It might also help us to govern the future built form and land use of such areas.
Keywords: Built Form, Correlation method, Land Use, Spatial Analysis, Transformation, Transportation Node, Urbanization.
Monitoring The Impact of Urban Form Changes on Health and Inequality: The INT...INTERACT
Presented by Meridith Sones
Simon Fraser University
Using cutting-edge technology and tools, INTERACT is conducting natural experiment studies on major changes in urban form in four Canadian cities (a multiuse greenway in Vancouver, a sustainable development plan in Montreal, a bicycle network in Victoria, and Bus Rapid Transit in Saskatoon). Applying an integrated knowledge translation approach in each city, INTERACT aims to: (1) understand context of urban interventions; (2) measure change in urban form; (3) analyze impact of interventions on health, wellbeing, and social inequalities; (4) mobilize knowledge to guide future decision making on urban change.
Kestens Y, Fuller D, Winters M, Bell S, Cantinotti M, Datta G, Lewis P, Lord S, McKay H, Morency C, Muhajarine N, Nelson T, Sims-Gould J, Stanley K, Wasfi R, Shareck M, Berscheid J, Gough M, Laberee K, Ottoni C, Poirier Stephens Z, Pugh C, Sones M, Brondeel R, Thigpen C, Luan H. Monitoring The Impact of Urban Form Changes on Health and Inequality: The INTERACT Methodology. Poster presentation at: Active Living Research Conference; February 2018; Banff, AB. (First prize for poster presentation)
Institutional Discrimination in Urban Planning-complete master thesis TUM 201...Jonathan P. Bell
Institutional Discrimination in Urban Planning-complete master thesis TUM 2018-Ohrner_Koczynski_Graziadei. All Rights Reserved by the original authors.
This research paper investigates the differences between Landscape Urbanism and New Urbanism from a behavioral perspective. The social practices model for sustainable consumption by Gert Spaargaren is used to compare which of the two, theoretically, leads to a greener consumption pattern and a lower overall environmental impact. This paper was given an 8/10 in the course Advanced Environmental Economics and Policy.
ABSTRACT:
What this paper is trying to highlight is how City-Regions are being actively constructed (Harrison, 2012), where they are being mobilised in support of, or in opposition to, particular territorial development models and strategies.
Hence, this paper contributes to debates about the meaning and the understanding of the dynamics of actively constructed term of the “City-Region”, by proposing an Analytical Systemic Framework after reviewing the literature of the main key authors. The Analytical Systemic Framework called “The Future of the City-Regions”
(FCR) consists of 5-Systems: URBS (Urban System), CYBER (Relational System), CIVITAS (Socio-Cultural System),
POLIS (Socio-Political System) and DEMOS (Democratic System).
Unveiling the Impact of Urban Green Landscape on Quality of Life in Kaduna, N...AgboolaPaul3
This study investigates the influence of urban green landscapes on the Quality of Life (QoL) in Kaduna Metropolis, Nigeria, focusing on residents' perceptions and sustainable urban development strategies. Conducted from May to July 2023, the quantitative research surveyed 377 residents using a questionnaire. Statistical analysis, including correlation and t-tests, was performed using SPSS version 23. Findings reveal a positive perception of urban green spaces, significantly contributing to residents' QoL. Key results include high satisfaction with green areas enhancing environmental beauty (Mean=4.88, SD=0.90) and providing recreational appeal (Mean=4.45, SD=0.95). Additionally, these areas significantly impact perceived value (Mean=4.78, SD=0.93), prestige (Mean=4.92, SD=8.18), and attachment to the environment (Mean=4.71, SD=0.831). Residents with accessible and functional green spaces express higher satisfaction levels (Cronbach’s Alpha > 0.9). The study underscores the importance of urban greenery in improving urban living conditions and offers strategic recommendations for sustainable urban planning. Addressing a gap in literature, this research provides empirical insights into residents' perspectives within Kaduna Metropolis, contributing to academic discourse and practical urban development approaches.
Analyzing the indicators walkability of cities, in order to improving urban ...IJMER
Urban design is a technique and knowledge seeking to organize and improve urban qualities and increase the quality of citizenship life. Based on the perspectives and objectives of urban design, the dominant intention in all urbanism activities is to reach high humanistic and social dimensions. In fact, what give meaning to a city are the social aspects raised in recent urban activities, in addition to the physical and visual body of it. Over the past decade the quality of the walking environment has become
a significant factor in transportation planning and design in developed countries. It is argued that the pedestrians’ environment has been ignored in favors of automobile. The purpose of this study was to examine the effects of walkability on property values and investment returns. Research method is descriptive. The method of collected data is field. Also, were used questionnaire tools in order to
collecting data. On the other hand, was referred to municipality 9 region due to, studied area was located in this urban region. In continue, was used SWOT technique in order to analyzing questionnaire. At finally, proposed
strategies in order to improving urban space qualif
Analyzing the indicators walkability of cities, in order to improving urban v...IJMER
Urban design is a technique and knowledge seeking to organize and improve urban qualities
and increase the quality of citizenship life. Based on the perspectives and objectives of urban design, the
dominant intention in all urbanism activities is to reach high humanistic and social dimensions. In fact,
what give meaning to a city are the social aspects raised in recent urban activities, in addition to the
physical and visual body of it. Over the past decade the quality of the walking environment has become
a significant factor in transportation planning and design in developed countries. It is argued that the
pedestrians’ environment has been ignored in favors of automobile. The purpose of this study was to
examine the effects of walkability on property values and investment returns. Research method is
descriptive. The method of collected data is field. Also, were used questionnaire tools in order to
collecting data. On the other hand, was referred to municipality 9 region due to, studied area was
located in this urban region.
In continue, was used SWOT technique in order to analyzing questionnaire. At finally, proposed
strategies in order to improving urban space qualify.
This is the briefing presentation of the lecture seminar that Dr Calzada from the University of Oxford (UK) Future of Cities & COMPAS and Ikerbasque, Basque Foundation for Science and Dr Casado from the University of the Basque Country, Philosophy Department delivered at the University of Iceland in Reykjavik on the 27th Sept 2013. They presented the #research #project titled #Basque & #Iceland #Connection after one week of full time #fieldwork #research conducting interviews in Reykjavik from 22nd-29th Sept. The procedure will continue in the Basque Country with the same methodology.
This presentation became a paper that will be published shortly.
Impact of Interstate Bus terminal on the Builtform of Residential Neighbourho...Shivika Mehrotra
In the developing countries like India, urbanization is taking place, rapidly. There are various reasons behind this urbanization. In the process, the built form and land use inside the cities are observing rapid transformation. Among many other factors behind this transformation, one key factor is transport nodes. A new transport node, when introduce inside a city, the surrounding area experiences very fast changes in built form as well as in land use. One such case can be found near ISBT, Gomtinagar, Lucknow. The area, once the pride of Lucknow due to Battle of Chinhat ;- now is experiencing rapid change in built form and land use due to the introduction of ISBT, Gomtingar. The area is situated on Faizabad Road between two very famous and developed residential zones of lucknow i.e. Indiranagar and Gomtinagar. The area has large number of old settlements like Patel Nagar, Surender nagar, Mulayam Nagam, Ismailganj, Kamta etc. Lucknow High Court is situated across the road of the above mentioned settlement areas. Apart from Lucknow High Court there are mall, government offices, private offices etc. in the area. There are also many commercial buildings nearby. People coming to Lucknow High Court and ISBT often stays in the above mentioned settlements. As a result, there are many changes occurring in those settlements. One can see the changes in terms of built form, building typologies, land use, building use etc. This phenomenon requires immediate academic attention for understanding the extent of impact of such transportation nodes on near-by residential zones. It might lead to formulate a road map for future built forms and land use in similar cases. The study will be conducted using spatial analysis method and Correlation method. The probable frame work of the study will be based on plotting various land use and built form over a period of time. The outcome of the study will help us to have a better understanding of how land use and built form changes over time due to presence of a stimulae like a transportation node. It might also help us to govern the future built form and land use of such areas.
Keywords: Built Form, Correlation method, Land Use, Spatial Analysis, Transformation, Transportation Node, Urbanization.
Monitoring The Impact of Urban Form Changes on Health and Inequality: The INT...INTERACT
Presented by Meridith Sones
Simon Fraser University
Using cutting-edge technology and tools, INTERACT is conducting natural experiment studies on major changes in urban form in four Canadian cities (a multiuse greenway in Vancouver, a sustainable development plan in Montreal, a bicycle network in Victoria, and Bus Rapid Transit in Saskatoon). Applying an integrated knowledge translation approach in each city, INTERACT aims to: (1) understand context of urban interventions; (2) measure change in urban form; (3) analyze impact of interventions on health, wellbeing, and social inequalities; (4) mobilize knowledge to guide future decision making on urban change.
Kestens Y, Fuller D, Winters M, Bell S, Cantinotti M, Datta G, Lewis P, Lord S, McKay H, Morency C, Muhajarine N, Nelson T, Sims-Gould J, Stanley K, Wasfi R, Shareck M, Berscheid J, Gough M, Laberee K, Ottoni C, Poirier Stephens Z, Pugh C, Sones M, Brondeel R, Thigpen C, Luan H. Monitoring The Impact of Urban Form Changes on Health and Inequality: The INTERACT Methodology. Poster presentation at: Active Living Research Conference; February 2018; Banff, AB. (First prize for poster presentation)
Institutional Discrimination in Urban Planning-complete master thesis TUM 201...Jonathan P. Bell
Institutional Discrimination in Urban Planning-complete master thesis TUM 2018-Ohrner_Koczynski_Graziadei. All Rights Reserved by the original authors.
This research paper investigates the differences between Landscape Urbanism and New Urbanism from a behavioral perspective. The social practices model for sustainable consumption by Gert Spaargaren is used to compare which of the two, theoretically, leads to a greener consumption pattern and a lower overall environmental impact. This paper was given an 8/10 in the course Advanced Environmental Economics and Policy.
ABSTRACT:
What this paper is trying to highlight is how City-Regions are being actively constructed (Harrison, 2012), where they are being mobilised in support of, or in opposition to, particular territorial development models and strategies.
Hence, this paper contributes to debates about the meaning and the understanding of the dynamics of actively constructed term of the “City-Region”, by proposing an Analytical Systemic Framework after reviewing the literature of the main key authors. The Analytical Systemic Framework called “The Future of the City-Regions”
(FCR) consists of 5-Systems: URBS (Urban System), CYBER (Relational System), CIVITAS (Socio-Cultural System),
POLIS (Socio-Political System) and DEMOS (Democratic System).
Unveiling the Impact of Urban Green Landscape on Quality of Life in Kaduna, N...AgboolaPaul3
This study investigates the influence of urban green landscapes on the Quality of Life (QoL) in Kaduna Metropolis, Nigeria, focusing on residents' perceptions and sustainable urban development strategies. Conducted from May to July 2023, the quantitative research surveyed 377 residents using a questionnaire. Statistical analysis, including correlation and t-tests, was performed using SPSS version 23. Findings reveal a positive perception of urban green spaces, significantly contributing to residents' QoL. Key results include high satisfaction with green areas enhancing environmental beauty (Mean=4.88, SD=0.90) and providing recreational appeal (Mean=4.45, SD=0.95). Additionally, these areas significantly impact perceived value (Mean=4.78, SD=0.93), prestige (Mean=4.92, SD=8.18), and attachment to the environment (Mean=4.71, SD=0.831). Residents with accessible and functional green spaces express higher satisfaction levels (Cronbach’s Alpha > 0.9). The study underscores the importance of urban greenery in improving urban living conditions and offers strategic recommendations for sustainable urban planning. Addressing a gap in literature, this research provides empirical insights into residents' perspectives within Kaduna Metropolis, contributing to academic discourse and practical urban development approaches.
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
Introduction:
RNA interference (RNAi) or Post-Transcriptional Gene Silencing (PTGS) is an important biological process for modulating eukaryotic gene expression.
It is highly conserved process of posttranscriptional gene silencing by which double stranded RNA (dsRNA) causes sequence-specific degradation of mRNA sequences.
dsRNA-induced gene silencing (RNAi) is reported in a wide range of eukaryotes ranging from worms, insects, mammals and plants.
This process mediates resistance to both endogenous parasitic and exogenous pathogenic nucleic acids, and regulates the expression of protein-coding genes.
What are small ncRNAs?
micro RNA (miRNA)
short interfering RNA (siRNA)
Properties of small non-coding RNA:
Involved in silencing mRNA transcripts.
Called “small” because they are usually only about 21-24 nucleotides long.
Synthesized by first cutting up longer precursor sequences (like the 61nt one that Lee discovered).
Silence an mRNA by base pairing with some sequence on the mRNA.
Discovery of siRNA?
The first small RNA:
In 1993 Rosalind Lee (Victor Ambros lab) was studying a non- coding gene in C. elegans, lin-4, that was involved in silencing of another gene, lin-14, at the appropriate time in the
development of the worm C. elegans.
Two small transcripts of lin-4 (22nt and 61nt) were found to be complementary to a sequence in the 3' UTR of lin-14.
Because lin-4 encoded no protein, she deduced that it must be these transcripts that are causing the silencing by RNA-RNA interactions.
Types of RNAi ( non coding RNA)
MiRNA
Length (23-25 nt)
Trans acting
Binds with target MRNA in mismatch
Translation inhibition
Si RNA
Length 21 nt.
Cis acting
Bind with target Mrna in perfect complementary sequence
Piwi-RNA
Length ; 25 to 36 nt.
Expressed in Germ Cells
Regulates trnasposomes activity
MECHANISM OF RNAI:
First the double-stranded RNA teams up with a protein complex named Dicer, which cuts the long RNA into short pieces.
Then another protein complex called RISC (RNA-induced silencing complex) discards one of the two RNA strands.
The RISC-docked, single-stranded RNA then pairs with the homologous mRNA and destroys it.
THE RISC COMPLEX:
RISC is large(>500kD) RNA multi- protein Binding complex which triggers MRNA degradation in response to MRNA
Unwinding of double stranded Si RNA by ATP independent Helicase
Active component of RISC is Ago proteins( ENDONUCLEASE) which cleave target MRNA.
DICER: endonuclease (RNase Family III)
Argonaute: Central Component of the RNA-Induced Silencing Complex (RISC)
One strand of the dsRNA produced by Dicer is retained in the RISC complex in association with Argonaute
ARGONAUTE PROTEIN :
1.PAZ(PIWI/Argonaute/ Zwille)- Recognition of target MRNA
2.PIWI (p-element induced wimpy Testis)- breaks Phosphodiester bond of mRNA.)RNAse H activity.
MiRNA:
The Double-stranded RNAs are naturally produced in eukaryotic cells during development, and they have a key role in regulating gene expression .
Nutraceutical market, scope and growth: Herbal drug technologyLokesh Patil
As consumer awareness of health and wellness rises, the nutraceutical market—which includes goods like functional meals, drinks, and dietary supplements that provide health advantages beyond basic nutrition—is growing significantly. As healthcare expenses rise, the population ages, and people want natural and preventative health solutions more and more, this industry is increasing quickly. Further driving market expansion are product formulation innovations and the use of cutting-edge technology for customized nutrition. With its worldwide reach, the nutraceutical industry is expected to keep growing and provide significant chances for research and investment in a number of categories, including vitamins, minerals, probiotics, and herbal supplements.
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
1. Systematic literature review on socio-spatial
causes and effects of urban bicycling
Exploring the state of the art of bicycle literature
Research apprenticeship Urban Studies
University of Amsterdam
22 May 2015
K.B. Herder
10004572
Supervisors: L. Bertolini, M. te Brömmelstroet & W. Boterman
2. !
! ! !
ii
Index
List of tables & figures iii
1. Introduction 1
2. Search strategy 3
2.1 Keywords 3
2.2 Criteria 4
3. Findings 5
3.1 Trends 5
4. Search results 9
4.1 Built environment 10
4.1.1 Density 11
4.1.2 Infrastructure 12
4.1.3 Diversity 13
4.1.4 Public space 14
4.1.5 Gentrification 15
4.2 Social environment 16
4.2.1 Social interaction 17
4.2.2 Community 18
4.2.3 Social exclusion 19
4.2.4 Culture 20
4.2.5 Social class 21
4.3 Personal factors 22
4.3.1 Well-being 23
4.3.2 Emotions 24
4.3.3 Ethnicity 25
4.3.4 Identity 26
4.3.5 Life-course 27
4.3.6 Gender 28
5. Reflection 29
Appendix 1 I
Appendix 2 II
5. !
!
1
!
1. Introduction
The bicycle has the potential to mitigate and perhaps even solve some of the societal
and environmental issues we are dealing with today. Hence more and more scholars
are turning their heads towards studying the causes and effects of cycling in order to
understand and maximize its full potential. While the body of literature on bicycling
is continuously growing the need for a review on the state of the art of bicycle
research becomes more and more urgent.
Several strands of bicycle literature have developed over the past years. For instance,
numerous scholars have studied the extent to which urban design and land-use
characteristics influence cycling (see, for example, Cevero & Duncan, 2003; Handy et
al., 2002). Other scholars have focused more on the social aspects of urban bicycling
(see Horton, 2006; Steinbach et al., 2011). Again others have studied how personal
perceptions influence bicycling (see Carver et al., 2005; De Meester et al., 2013). As
the examples suggest often times studies on urban cycling can be placed into one or
more of the following categories: the built environment, the social environment, and
personal factors. Yet, the burgeoning interest in urban bicycling asks for a more
precise exploration of research themes and in general the state of the art of the
research field. What are the established research topics? Which themes are
underdeveloped? What are the most recent trends in urban bicycling studies?
To our knowledge a systematic review on the full body of literature on socio-spatial
causes and effects of urban bicycling is until now missing. Pucher, Dill & Handy
(2010) review studies in the field of bicycle research that consider the effects of a
wide array of interventions on levels of bicycling. The review gives a great overview of
effective interventions, but does not by any means answer questions related to the
state of the bicycle research field. Handy, Van Wee & Kroesen (2014) review not only
studies that consider strategies that will increase urban cycling but also the benefits
of cycling. Their paper describes the state of the research in a particular strand of
literature on urban cycling namely that of transport cycling from the standpoint of
planning and policy-making. However, it does not provide a systematic review of the
full body of existing research. This report wishes to make a start in systematically and
comprehensively exploring the state of the art of urban cycling literature.
The aim of this systematic literature review is to take a first step in providing scholars
with an interest in urban cycling with an overview of urban bicycling literature.
Secondly, the review aims to bring to the surface the key studies in urban bicycling
research and the latest research trends in the field. The review, first, explains the
strategy that was applied including the keywords and criteria that have been used.
Second, some of the basic findings are discussed. Third, a database of relevant
articles is given. Lastly, the method of systematic review is reflected upon.
References
Carver,!A.,!Salmon,!J.,!Campbell,!K.,!Baur,!L.,!Garnett,!S.,!&!Crawford,!D.!(2005).!How!do!
perceptions!of!local!neighborhood!relate!to!adolescents'!walking!and!cycling?!American!Journal!of!
Health!Promotion,20(2),!139O147.!
!
Cervero,!R.,!&!Duncan,!M.!(2003).!Walking,!bicycling,!and!urban!landscapes:!Evidence!from!the!
san!francisco!bay!area.!American!Journal!of!Public!Health,!93(9),!1478O1483.!
7. !
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2. Search strategy
This literature review considers all types of research on socio-spatial causes and
effects of urban bicycling. The data is collected through an online search in the Web
of Science database. The search was conducted in April and May 2015.
Through trial and error it is decided to search the Web of Science database in the
form of keyword combinations. The keyword “bicycle” was used in combination with
a number of additional keywords (see paragraph 2.1). The keyword combination form
was set to “and” (i.e. not “or” or “not”). The nature of every keyword was set to “topic”
(i.e. not “title”, “author”, “author identifiers”, “editor”, “group author”, “publication
name”, “DOI” or “year published”). For every keyword in combination with the
keyword “bicycle” the three most cited articles and the three most recent were
incorporated into our urban bicycling research database. The articles were screened
on their relevance with regard to the criteria set out in paragraph 2.2. The timespan
of the search was set to “all years”. However, most of the articles that were found are
of the last 20 years. Every search was also refined by the research domain “social
sciences”.
2.1 Keywords
The keywords that have been used for exploring the Web of Science database on
urban cycling research are determined through our own knowledge of contemporary
socio-spatial bicycle literature. Table 1 presents the keywords that were used for the
search in combination with the keyword “bicycle”. The keywords were categorized for
organizational purposes. The provided categorization is not a set categorization by
and of itself, but can be done in different ways.
Table 1 Keywords
Category Built environment Social
environment
Personal factors
Keywords Density
Infrastructure
Diversity
Public space
Gentrification
Social interaction
Community
Social exclusion
Culture
Social class
Well-being
Emotions
Ethnicity
Identity
Life course
Gender
It is important to note that also the main categories (“built environment”, “social
environment” and “personal factors”) were used as keywords. Hence in total 19
searches were conducted.
2.2 Criteria
All research accounts with a focus on socio-spatial causes and effects of urban
bicycling were regarded relevant to this literature review. The abstracts of the articles
found through the database search were screened to determine the articles’
relevance. The following criteria were used for screening the abstracts:
• The bicycle is mentioned explicitly in the abstract
• The article considers socio-spatial causes and/or effects of urban bicycling
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• The article considers urban bicycling (which can include leisure bicycling but
not mountain biking or holiday touring for instance)
More precisely articles about bicycling and physiology, medical conditions, injuries
and accidents, and accident prevention were not included. Also articles about helmet
use and technical studies on safety were not regarded relevant to this review.
Historical accounts and articles on bicycling as a sport were also not included.
Moreover, articles about physical activity were not regarded relevant when bicycling
was considered as a sport activity. Articles on active travel on the other hand were
included when bicycling was explicitly mentioned.
For example, although Kaplan (2015) is about holiday cycling it is included into the
urban cycling database because, first, the paper is essentially about urban bicycling
(i.e. not country back holiday cycling for instance), and, second, it explicitly discusses
social causes of tourist cycling in the city. More examples: Fyhri & Phillips (2013)
was not included since the paper is about helmet use. Kinsey (2011) was not included
on the basis of it being a historical account.
References
Fyhri, A., & Phillips, R. O. (2013). Emotional reactions to cycle helmet use. Accident Analysis
and Prevention, 50, 59-63.
Kaplan, S., Manca, F., Nielsen, T. A. S., & Prato, C. G. (2015). Intentions to use bike-sharing
for holiday cycling: An application of the theory of planned behavior. Tourism
Management, 47, 34-46.
Kinsey, F. (2011). Reading photographic portraits of australian women cyclists in the 1890s:
From costume and cycle choices to constructions of feminine identity. International Journal
of the History of Sport,28(8-9), 1121-1137.
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3. Findings
The review has resulted in 76 processed articles. Some of the articles, such as Handy
et al. (2002), Cervero & Duncan (2003), Lee et al. (2015), Saelens et al. (2003),
Stehlin (2014), Hoehner et al. (2005), Timperio et al. (2006), Wang et al. (2015),
Titze et al. (2008), Rietveld & Daniel (2004), Yang et al. (2014), Garrard et al.
(2008), McIlvenny (2015) and Ho et al. (2015), pop up in more then one keyword
combination search.
The papers were published over 42 different academic journals. The Journal of
Transport Geography (7), Transportation Research Part A-Policy and Practice (6),
Preventive Medicine (5), Transport Policy (4) and Environment and Planning A (4)
contained the highest shares of articles found through the searches. A complete list of
the journals can be found in Appendix 2.
The keyword search combinations “bicycle” and respectively “community” (369),
“gender” (281), “infrastructure” (166), “density” (164), “built environment” (149), and
“social environment” (149) resulted in the highest numbers of articles found. The
lowest numbers of articles were found when the database was searched for the
keyword combination “bicycle” and respectively “life course” (17), “diversity” (11),
“social exclusion” (4), and “gentrification” (2). These research themes seem to be
underdeveloped.
The body of literature on urban bicycling is growing especially as of the last 5 to 10
years. Nearly all the keyword combination searches show a trend of growth in
publications. Needless to say there is a burgeoning interest in urban cycling research.
3.1 Trends
Of the most recent articles a large extent focuses specifically on the bicycle (see for
example Lee et al., 2015; Habib et al., 2014; Cui et al., 2014; Yang et al., 2015; Koglin,
2015; Stehlin, 2015; Kaplan et al., 2015; Wang et al., 2015; McIlvenny, 2015) instead
of considering several modalities at the same time as some of the more established
papers do (see Handy et al., 2002; Cervero & Duncan, 2003; Saelens et al., 2003;
Hoehner et al., 2005; Carver et al., 2005; Braza et al., 2004).
Some strands of literature have developed just recently such as literature on bicycling
and public space, gentrification, social interaction and emotions (see graphs in figure
5, 6, 8 and 15 of chapter 4). These themes can be regarded as up and coming research
areas in the field of urban bicycling research. For instance, papers on emotions
associated with bicycling (see McIlvenny, 2015; Passafaro et al., 2014) are published
remarkably recent. The articles by Stehlin (2014; 2015) seem to mark the
development of a more critical literature on urban bicycling.
Also new are papers on bicycle sharing systems (see Martin & Shaheen, 2014;
Corcoran et al., 2014; Parkes et al., 2013 and Kaplan et al., 2015), articles
investigating cycling events (see Zieff et al., 2013; Derom & VanWynsberghe, 2015
and Torres et al., 2013), and research on e-bikes (see Wolf & Seebauer, 2014).
Further several recent papers research urban bicycling in the global south (Yang et
al., 2015; Zieff et al., 2013 and Torres et al., 2013).
Another quite surprising finding is that the keyword combination search “bicycle”
and “built environment” found that recent studies more often than not study social
factors instead of physical factors associated with urban bicycling. Whereas the more
established papers, such as Handy et al. (2002) and Cervero & Duncan (2003), focus
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on physical or ‘hard’ factors the most recent papers seem to pay more attention to
‘soft’ factors such as attitudes (see Lee et al., 2015) and perceptions (see Habib et al.,
2014) towards bicycling.
Research on cycling to school or more generally active commuting to school or
around campus seems to be a recurrent theme. Both earlier highly cited papers (see
Timperio et al., 2006; Mota et al., 2007; Landsberg et al., 2008; Tuder-Locke et al.,
2001; Braza et al., 2004) as well as more recent papers (see Wang et al., 2015;
Kaplan, 2015; Rybarczyk & Gallagher, 2014; Yang et al., 2014; Cardon et al., 2012;
Mendoza et al, 2014; Mendoza & Liu, 2014) investigate bicycling associated with
school.
References
Braza,!M.,!Shoemaker,!W.,!&!Seeley,!A.!(2004).!Neighborhood!design!and!rates!of!walking!and!
biking!to!elementary!school!in!34!california!communities.!American!Journal!of!Health!
Promotion,!19(2),!128O136.!
!
Cardon,!G.!M.,!Maes,!L.!R.!D.,!Haerens,!L.!L.,!&!De!Bourdeaudhuij,!I.!M.!M.!(2012).!Bicycling!to!
school!during!the!transition!from!childhood!into!adolescence:!A!sixOyear!longitudinal!
study.!Pediatric!Exercise!Science,!24(3),!369O383.!
!
Cervero,!R.,!&!Duncan,!M.!(2003).!Walking,!bicycling,!and!urban!landscapes:!Evidence!from!the!
san!francisco!bay!area.!American!Journal!of!Public!Health,!93(9),!1478O1483.!
!
Corcoran,!J.,!Li,!T.,!Rohde,!D.,!CharlesOEdwards,!E.,!&!MateoOBabiano,!D.!(2014).!SpatioOtemporal!
patterns!of!a!public!bicycle!sharing!program:!The!effect!of!weather!and!calendar!events.!Journal!
of!Transport!Geography,!41,!292O305.!
!
Cui,!Y.,!Mishra,!S.,!&!Welch,!T.!F.!(2014).!Land!use!effects!on!bicycle!ridership:!A!framework!for!
state!planning!agencies.!Journal!of!Transport!Geography,!41,!220O228.!
!
Derom,!I.,!&!VanWynsberghe,!R.!(2015).!Extending!the!benefits!of!leveraging!cycling!events:!
Evidence!from!the!tour!of!flanders.!European!Sport!Management!Quarterly,!15(1),!111O131.!
!
Habib,!K.!N.,!Mann,!J.,!Mahmoud,!M.,!&!Weiss,!A.!(2014).!Synopsis!of!bicycle!demand!in!the!city!of!
toronto:!Investigating!the!effects!of!perception,!consciousness!and!comfortability!on!the!purpose!
of!biking!and!bike!ownership.!Transportation!Research!Part!AOPolicy!and!Practice,!70,!67O80.!
!
Handy,!S.!L.,!Boarnet,!M.!G.,!Ewing,!R.,!&!Killingsworth,!R.!E.!(2002).!How!the!built!environment!
affects!physical!activity!O!views!from!urban!planning.!American!Journal!of!Preventive!
Medicine,!23(2),!64O73.!
!
Hoehner,!C.!M.,!Ramirez,!L.!K.!B.,!Elliott,!M.!B.,!Handy,!S.!L.,!&!Brownson,!R.!C.!(2005).!Perceived!
and!objective!environmental!measures!and!physical!activity!among!urban!adults.!American!
Journal!of!Preventive!Medicine,!28(2),!105O116.!
!
Kaplan,!S.,!Manca,!F.,!Nielsen,!T.!A.!S.,!&!Prato,!C.!G.!(2015).!Intentions!to!use!bikeOsharing!for!
holiday!cycling:!An!application!of!the!theory!of!planned!behavior.!Tourism!Management,!47,!34O
46.!
!
Kaplan,!D.!H.!(2015).!Transportation!sustainability!on!a!university!campus.!International!Journal!
of!Sustainability!in!Higher!Education,!16(2),!173O186.!
!
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Appendix 1
The following URL contains the online database of all articles found through the
systematic searches:
http://www.refworks.com/refshare2?site=062841272513600000/141201428411948
905/078361426770763000
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Appendix 2
List of journals including numbers of papers published in journals found through the
systematic searches:
Journal of Transport Geography (7)
Transportation Research Part A-Policy and Practice (6)
Preventive Medicine (5)
Transport Policy (4)
Environment and Planning (4)
American Journal of Preventive Medicine (3)
Journal of Physical Activity & Health (3)
Mobilities (3)
Social Science & Medicine (3)
American Journal of Public Health (2)
Childhood Obesity (2)
Journal of Macromarketing (2)
Transportation Research Part F-Traffic Psychology and Behaviour (2)
American Journal of Health Promotion (1)
Annals of Behavioral Medicine (1)
Annals of Human Biology (1)
Australian and New Zealand Journal of Public Health (1)
British Medical Journal (1)
Bulletin of the World Health Organization (1)
Computers Environment and Urban Systems (1)
Ecological Economics (1)
Environmental Politics (1)
European Journal of Clinical Nutrition (1)
European Sport Management Quarterly (1)
Habitat International (1)
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International Journal of Behavioral Nutrition and Physical Activity (1)
International Journal of Sustainability in Higher Education (1)
Journal of Environmental Psychology (1)
Journal of Sustainable Tourism (1)
International Journal of Sustainable Transportation (1)
Journal of Public Health Management and Practice (1)
Medical Anthropology (1)
Medicine and Science in Sports and Exercise (1)
Organization Studies (1)
Pediatric Exercise Science (1)
Scandinavian Journal of Public Health (1)
Social & Cultural Geography Space and Culture (1)
Sports Medicine (1)
Urban Design International (1)
Tourism Management (1)
!