An Examination of Personal Mobility Patterns in Space and Time Using Twitter

2014 ◽  
Vol 5 (3) ◽  
pp. 55-72 ◽  
Author(s):  
Mark Birkin ◽  
Kirk Harland ◽  
Nicolas Malleson ◽  
Philip Cross ◽  
Martin Clarke
Keyword(s):  
Activity Patterns ◽  
Mobility Patterns ◽  
Personal Mobility ◽  
Small Areas ◽  
Form And Function ◽  
Space And Time ◽  
Frequency Of Use ◽  
User Groups ◽  
And Function

New sources of data relating to personal mobility and activity patterns are now providing a unique opportunity to explore movement patterns at increasing scales of spatial and temporal refinement. In this article, a corpus of messages from the Twitter social networking platform are examined. An elementary classification of users is proposed on the basis of frequency of use in space and time. The behaviour of different user groups is investigated across small areas in the major conurbation of Leeds. Substantial variations can be detected in the configuration of individual networks. An interpretation of the patterns which result is provided in terms of the underlying demographic structures, and the basic form and function of the urban area.

scholarly journals Interesting times: winners, losers, and system shifts under climate change around Australia

2011 ◽  
Vol 68 (6) ◽  
pp. 1329-1342 ◽  
Author(s):  
E. A. Fulton
Keyword(s):  
Climate Change ◽  
Global Change ◽  
Physical Environment ◽  
Marine Science ◽  
Species Ranges ◽  
Form And Function ◽  
Space And Time ◽  
Basic Features ◽  
And Function

AbstractFulton, E. A. 2011. Interesting times: winners, losers, and system shifts under climate change around Australia. – ICES Journal of Marine Science, 68: 1329–1342. Feedback and change are basic features of ecosystems, something global change has highlighted. Changes in the physical environment will see shifts in species ranges, community compositions, and ultimately the form and function of ecosystem and the human societies that exploit them. What these shifts will be depends on which of the competing (and potentially counteracting) mechanisms dominate through space and time. Moreover, changes are unlikely to be simple or linear; there will be winners, losers, and surprises. It also means that management will be complex and non-stationary, presenting management, scientific, and statistical challenges.

scholarly journals CLASSIFICATION OF TRANSFORMABLE PRODUCTS BASED ON CHANGES IN PRODUCT FORM AND FUNCTION

2021 ◽  
Vol 1 ◽  
pp. 641-650
Author(s):  
Haebin Lee ◽  
Muhammad Tufail ◽  
KwanMyung Kim
Keyword(s):  
Product Design ◽  
Product Form ◽  
Phase Model ◽  
Form And Function ◽  
Sentence Form ◽  
And Function ◽  
Intention To Change ◽  
The Relationship

AbstractThe sentence “form follows function” is the best expression of the relationship between form and function of a product in modern product design. This implies that the form is essential to implement the function while it should be optimized and minimized for the function. Unlike general products, transformable products are designed with the intention to change the function and form of the product according to the situation. This paper presents the types and characteristics of transformable products determined by Phase Model we introduced. We collected 147 transformable product cases and analyzed them according to the change of functions and forms in each product. As a result, we classified the transformable products into four types: partial transformable product, multi-form product, multi-function product and full transformable product. We found that each type has unique characteristics with potential to drive innovation in product design field.

scholarly journals Revisiting the classification of squamate adhesive setae: historical, morphological and functional perspectives

2021 ◽  
Vol 8 (2) ◽  
pp. 202039
Author(s):  
Austin M. Garner ◽  
Anthony P. Russell
Keyword(s):  
Cell Biology ◽  
Physical Sciences ◽  
Form And Function ◽  
Morphological Criteria ◽  
History Of ◽  
Definition Of ◽  
And Function ◽  
Gecko Adhesion ◽  
Made In

Research on gecko-based adhesion has become a truly interdisciplinary endeavour, encompassing many disciplines within the natural and physical sciences. Gecko adhesion occurs by the induction of van der Waals intermolecular (and possibly other) forces between substrata and integumentary filaments (setae) terminating in at least one spatulate tip. Gecko setae have increasingly been idealized as structures with uniform dimensions and a particular branching pattern. Approaches to developing synthetic simulacra have largely adopted such an idealized form as a foundational template. Observations of entire setal fields of geckos and anoles have, however, revealed extensive, predictable variation in setal form. Some filaments of these fields do not fulfil the morphological criteria that characterize setae and, problematically, recent authors have applied the term ‘seta’ to structurally simpler and likely non-adhesively competent fibrils. Herein we briefly review the history of the definition of squamate setae and propose a standardized classificatory scheme for epidermal outgrowths based on a combination of whole animal performance and morphology. Our review is by no means comprehensive of the literature regarding the form, function, and development of the adhesive setae of squamates and we do not address significant advances that have been made in many areas (e.g. cell biology of setae) that are largely tangential to their classification and identification. We contend that those who aspire to simulate the form and function of squamate setae will benefit from a fuller appreciation of the diversity of these structures, thereby assisting in the identification of features most relevant to their objectives.

scholarly journals Immunocytochemical methods in the study of lymphoma and related conditions.

1978 ◽  
Vol 26 (7) ◽  
pp. 496-512 ◽  
Author(s):  
C R Taylor
Keyword(s):  
B Lymphocyte ◽  
Paraffin Sections ◽  
Form And Function ◽  
Developmental Relationship ◽  
Histological Criteria ◽  
Immunoblastic Sarcoma ◽  
Diagnosis And Classification ◽  
Successive Generations ◽  
And Function

The diagnosis and classification of malignant lymphomas is based upon traditional histological criteria evolved over the years by successive generations of pathologists. Immunoperoxidase methods applied to formalin paraffin sections have permitted a direct correlation of these established morphologic criteria with newer immunological concepts of the form and function of the B lymphocyte and its derivatives. Study of material from 500 cases of Hodgkin's disease, non-Hodgkin lymphomas, and myeloma has revealed that many of these conditions may find a common origin in the lymphocyte, and that some malignant cells, previously identified as malignant histiocytes or reticulum cells are rather related to or derived from the transformed lymphocyte or immunoblast. The corresponding tumors are thus more logically designated immunoblastic sarcoma. The study also reveals a claser developmental relationship between multiple myeloma and immunoblastic sarcoma than previously suspected, and suggests that all of the B cell lymphomas occur as part of a continuous spectrum of disease, rather than as separate entities as implied by current histological classifications. The study of immunoglobulin in formalin paraffin sections is illustrative of the great potential of this method in the diagnosis and study of neoplasia in general.

Head movements in Finnish Sign Language on the basis of Motion Capture data

2015 ◽  
Vol 18 (1) ◽  
pp. 41-89 ◽  
Author(s):  
Anna Puupponen ◽  
Tuija Wainio ◽  
Birgitta Burger ◽  
Tommi Jantunen
Keyword(s):  
Sign Language ◽  
Motion Capture ◽  
Functional Properties ◽  
Head Movement ◽  
Head Movements ◽  
Motion Capture Data ◽  
Form And Function ◽  
Kinematic Characteristics ◽  
And Function

This paper reports a study of the forms and functions of head movements produced in the dimension of depth in Finnish Sign Language (FinSL). Specifically, the paper describes and analyzes the phonetic forms and prosodic, grammatical, communicative, and textual functions of nods, head thrusts, nodding, and head pulls occurring in FinSL data consisting of a continuous dialogue recorded with motion capture technology. The analysis yields a novel classification of the kinematic characteristics and functional properties of the four types of head movement. However, it also reveals that there is no perfect correspondence between form and function in the head movements investigated.

Predicting spatial activity patterns in a neural map from a probabilistic atlas of 3-D reconstructed neurons

1995 ◽  
Vol 53 ◽  
pp. 812-813
Author(s):  
G. Jacobs ◽  
F. Theunissen
Keyword(s):  
Activity Patterns ◽  
Three Dimensional ◽  
Sensory System ◽  
Neural System ◽  
Probabilistic Atlas ◽  
Uniform Sample ◽  
Dimensional Reconstruction ◽  
The Time Domain ◽  
And Function ◽  
Visualization Techniques

In order to understand how the algorithms underlying neural computation are implemented within any neural system, it is necessary to understand details of the anatomy, physiology and global organization of the neurons from which the system is constructed. Information is represented in neural systems by patterns of activity that vary in both their spatial extent and in the time domain. One of the great challenges to microscopists is to devise methods for imaging these patterns of activity and to correlate them with the underlying neuroanatomy and physiology. We have addressed this problem by using a combination of three dimensional reconstruction techniques, quantitative analysis and computer visualization techniques to build a probabilistic atlas of a neural map in an insect sensory system. The principal goal of this study was to derive a quantitative representation of the map, based on a uniform sample of afferents that was of sufficient size to allow statistically meaningful analyses of the relationships between structure and function.

Scanning tunneling microscopy (STM) of DNA and RNA

1989 ◽  
Vol 47 ◽  
pp. 34-35
Author(s):  
Patricia G. Arscott ◽  
Gil Lee ◽  
Victor A. Bloomfield ◽  
D. Fennell Evans
Keyword(s):  
Molecular Structures ◽  
Inorganic Materials ◽  
Resolving Power ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Form And Function ◽  
Dna And Rna ◽  
Calf Thymus ◽  
And Function ◽  
The Relationship

STM is one of the most promising techniques available for visualizing the fine details of biomolecular structure. It has been used to map the surface topography of inorganic materials in atomic dimensions, and thus has the resolving power not only to determine the conformation of small molecules but to distinguish site-specific features within a molecule. That level of detail is of critical importance in understanding the relationship between form and function in biological systems. The size, shape, and accessibility of molecular structures can be determined much more accurately by STM than by electron microscopy since no staining, shadowing or labeling with heavy metals is required, and there is no exposure to damaging radiation by electrons. Crystallography and most other physical techniques do not give information about individual molecules.We have obtained striking images of DNA and RNA, using calf thymus DNA and two synthetic polynucleotides, poly(dG-me5dC)·poly(dG-me5dC) and poly(rA)·poly(rU).

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