Geographical Organization Research Articles

Analysing inter-state communication dynamics and roles in the networks of the International Institute of Intellectual Cooperation

The International Institute of Intellectual Cooperation (IIIC) was an international organisation established post-World War I, aimed to foster intellectual relations for global peace. As this institution becomes centenary, the digitisation of archival records has democratised access, sparking renewed scholar interest and eventually enabling new research avenues. Here, we examine two letter collections from IIIC’s digitised funds, focusing on administrative and artistic/literary matters. By analysing recognisable sender-receiver pairs and their geographical origins, we construct networks revealing intricate international relationships. Notably, the community structures and roles differ between administrative and literary exchanges, suggesting distinct communication dynamics. Administrative matters depict a more egalitarian distribution. In contrast, relevant literary correspondents include Western European countries exclusively, reflecting the prominence of certain geocultural areas as well as potential geopolitical influence attempts, challenging the established historical narratives on centres and peripheries, inviting a revaluation of the IIIC’s geographical organisation and intellectual cooperation during the interwar period.

Global biogeographical regions reveal a signal of past human impacts

Ecologists have long documented that the world's biota is spatially organised in regions with boundaries shaped by processes acting on geological and evolutionary timescales. Although growing evidence suggests that historical human impact has been key in how biodiversity is currently assembled, its role as a driver of the geographical organisation of biodiversity remains unclear. Using non‐volant terrestrial mammals we set up a bioregionalization procedure focused on two datasets, one describing the current ranges of terrestrial mammals, and another describing their potential natural ranges in absence of historic anthropogenic land use. We then quantified the relative importance of anthropogenic land use (5000 and 2000 years ago, and present time) to predict the current and natural biogeographical regions across the Earth. In general, past and present human land use were important predictors of current bioregions but did not largely contribute to predict natural bioregions. Past anthropogenic land use seems to have left an imprint on the taxonomic differentiation of some of the largest biogeographical realms, whereas land use at present stands out as a driver of the taxonomic differences between medium‐sized subregions, i.e. within and among continents. Our findings suggest that anthropogenic actions during the last millennia have had a far‐reaching effect on the spatial organisation of the Earth's non‐volant mammals.

Spatial analysis for psychologists: How to use individual-level data for research at the geographically aggregated level.

Psychologists have become increasingly interested in the geographical organization of psychological phenomena. Such studies typically seek to identify geographical variation in psychological characteristics and examine the causes and consequences of that variation. Geo-psychological research offers unique advantages, such as a wide variety of easily obtainable behavioral outcomes. However, studies at the geographically aggregate level also come with unique challenges that require psychologists to work with unfamiliar data formats, sources, measures, and statistical problems. The present article aims to present psychologists with a methodological roadmap that equips them with basic analytical techniques for geographical analysis. Across five sections, we provide a step-by-step tutorial and walk readers through a full geo-psychological research project. We provide guidance for (a) choosing an appropriate geographical level and aggregating individual data, (b) spatializing data and mapping geographical distributions, (c) creating and managing spatial weights matrices, (d) assessing geographical clustering and identifying distributional patterns, and (e) regressing spatial data using spatial regression models. Throughout the tutorial, we alternate between explanatory sections that feature in-depth background information and hands-on sections that use real data to demonstrate the practical implementation of each step in R. The full R code and all data used in this demonstration are available from the OSF project page accompanying this article. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

An updated floristic map of the world

Floristic regions reflect the geographic organization of floras and provide essential tools for biological studies. Previous global floristic regions are generally based on floristic endemism, lacking a phylogenetic consideration that captures floristic evolution. Moreover, the contribution of tectonic dynamics and historical and current climate to the division of floristic regions remains unknown. Here, by integrating global distributions and a phylogeny of 12,664 angiosperm genera, we update global floristic regions and explore their temporal changes. Eight floristic realms and 16 nested sub-realms are identified. The previously-defined Holarctic, Neotropical and Australian realms are recognized, but Paleotropical, Antarctic and Cape realms are not. Most realms have formed since Paleogene. Geographic isolation induced by plate tectonics dominates the formation of floristic realms, while current/historical climate has little contribution. Our study demonstrates the necessity of integrating distributions and phylogenies in regionalizing floristic realms and the interplay of macroevolutionary and paleogeographic processes in shaping regional floras.

Ecological and Geographical Organization and Structure of the Summer Bird Assemblages of Northern Eurasia

Ecological and Geographical Organization and Structure of the Summer Bird Assemblages of Northern Eurasia

The State as a “form of life” and the space as Leistungsraum: the reception of Ratzel in the First and Second World Wars

Abstract. My contribution explores the meaning of war and the role of Germany, which was seen as representing a Mittellage, before the First and the Second World Wars, through the eyes of two main authors who radically reinterpreted and appropriated geographical political thinking, particularly the work of Ratzel. I am referring to the Swedish political scholar Rudolf Kjellen and the “crown jurist” of the Third Reich, Carl Schmitt. The consideration of the triple relation between space, Ratzel and war casts light on Kjellen's and Schmitt's use of Ratzel as a lever in order to promote their idea of politics and political science. Ratzel's concepts offered Kjellen and, in a different way, Schmitt, a means of justifying their way of overcoming and stretching the “limits” of their disciplines and, at the same time, of introducing a new idea of political and geographical organization, which de facto legitimized German expansion, in two crucial periods of German political life – the First and the Second World Wars. As a consequence, their Ratzel was oriented toward militant aims. Moreover, their scientific and political ideas were clearly intertwined – they explicitly rejected the idea of separating their roles as political activists and as members of a scientific community.

Metropolitan polynodal cores as the basis of the new regional organization of Czechia

Theoretical research on geographical organization is, in Czechia, mainly associated with Martin Hampl (1940−2022). This paper refers to his extraordinary work. In this article, integrated systems of centers are first defined by two methods: by applying M. Hampl’s method and by using the new criterion of reciprocal mobility. Subsequently, both delimitations are compared, and a typology of these systems is made. Next, the commuting microregions of the integrated systems of centers are created on the basis of commuting patterns from municipalities. The regionalization performed is then a tool to verify the concordance of the regional organization determined by the polynodal cores and given by the Hampl’s mononodal microregional centers. We assume that in reality a more valid regional system will have greater regional integrity of the defined regions and its hierarchization will be more consistent with the theoretical assumptions of the rank size rule. We view the resulting findings both as a stimulus for discussing the methodology for delineating integrated system of centers and as a basis for comparing the expected results of the current national census of 2021.

Spatial Organization of Hematopoietic Clones in the Bone Marrow of a Patient with Polycythemia Vera

All humans become genetic mosaics over time as our stem cells acquire somatic mutations throughout life. In the hematopoietic compartment, this phenomenon is termed clonal hematopoiesis (Steensma et al. 2015). Clonal hematopoiesis (CH) increases in prevalence with age and is associated with an increased risk for hematologic malignancy (Genovese et al. 2014; Jaiswal et al. 2014; Xie et al. 2014). CH harboring JAK2 mutations are frequently observed in healthy individuals; and yet JAK2 mutations are also the most frequent drivers of myeloproliferative neoplasms (MPNs) such as polycythemia vera (PV). MPNs are clonal diseases marked by dysregulated hematopoiesis and can progress to a secondary myelodysplastic syndrome or acute leukemia. There is increasing evidence that the clonal mutations driving MPNs arise early in life-potentially in utero-often years before the development of symptoms (Williams et al. 2022). While the intrinsic factors driving clonal expansion are increasingly known (Watson et al. 2020), the extrinsic factors driving the expansion of clones harboring these MPN driver mutations are not well characterized. Prior work has shown that clonal mutations are geographically constrained in solid organs such as skin, colon and esophagus (Lee-Six et al. 2018; Martincorena et al. 2015, 2018). Strikingly, in the esophagus non-malignant NOTCH1 mutant clones can even outcompete nascent malignant clones (Colom et al. 2021). In the hematopoietic compartment, the spatial organization of clones harboring these mutations and their interaction with the niche and each other is largely unknown. We hypothesized that clonal mutations are geographically constrained in the bone marrow niche as is seen in solid organs. To answer these questions, we developed methods for spatially-aware clonal mutation detection. As proof of principle, we characterized the hematopoietic clonal organization within a femur head explant from a 50 year-old man with PV undergoing hip arthroplasty. Briefly, the femur head was sectioned into 2mm slices, which were then further partitioned into approximately 300 bone marrow fragments (2mm3). Approximately 20% of the fragments were snap frozen and pulverized for DNA extraction. The remainder were formalin fixed and decalcified for correlative imaging. Targeted error-corrected sequencing was performed using a myeloid-specific panel (Duncavage et al. 2018) on 24 bone marrow fragments, and bulk peripheral blood and bone marrow aspirate. In the peripheral blood, JAK2 V617F (0.24 VAF) and TET2 L1081* (0.02 VAF) mutations were identified. In the bone marrow aspirate, the same JAK2 (0.62 VAF) and TET2 (0.05 VAF) mutations were identified in addition to a DNMT3A R882C mutation (0.02 VAF). Interestingly, peripheral blood sequencing two years prior identified the JAK2 and DNMT3A mutations, but not the TET2 mutation, suggesting recent clonal expansion of TET2 mutant clone. From the 24 sequenced bone marrow fragments, the geographical organization of clonal mutations in the bone marrow was determined (Figure 1). The JAK2 V617F clone was identified in all bone marrow fragments sequenced (0.12-0.69 VAF). The TET2 L1081* clone was identified in 11/24 bone marrow fragments with some regional constraint (0.03-0.05 VAF). The DNMT3A R882C mutation was detected in only a single bone marrow fragment (0.02 VAF) and co-localized with the JAK2 V617F and TET2 L1081* mutations. A previously undetected clonal SETBP1 E616V mutation was identified in two adjacent bone marrow fragments from sequential slices of the femur head (0.05 VAF and 0.10 VAF). Together this provides the first characterization of spatial organization of clonal mutations in the bone marrow niche for an MPN patient. Currently, we are utilizing digital droplet PCR targeting these detected mutations in ~60 additional bone marrow fragments to accurately quantify clone size across the tissue. We plan to employ multiplex fluorescent imaging of bone marrow fragments adjacent to detected clusters of mutations to identify the surrounding bone marrow niche elements in those regions. These findings suggest that bone marrow biopsy from a small section of bone marrow may not accurately describe disease state and clonal mutation burden in myeloid neoplasms. Future applications of these tools will help describe the extrinsic factors and local microenvironment that drive clonal evolution over time in the bone marrow. Figure 1View largeDownload PPTFigure 1View largeDownload PPT Close modal

A Critical Companion to English Mappae Mundi of the Twelfth and Thirteenth Centuries

A Critical Companion to English Mappae Mundi of the Twelfth and Thirteenth Centuries

Practicalities, challenges and solutions to delivering a national organisational survey of cancer service and processes: Lessons from the National Prostate Cancer Audit

Organisational surveys are a critical process to assess the configuration and availability of services within health care systems. Cancer service organizational surveys enable understanding of variation in structure, processes and outcomes of cancer care according to the availability of facilities and their geographical organisation. This is critical for evaluating the delivery of cancer care services across a specified region. Furthermore, the organisational survey provides essential information about patient support services which can be used to inform patients where particular allied health services are available.The National Prostate Cancer Audit (NPCA) is an audit of all prostate cancer services in England and Wales. The NPCA encompasses all prostate cancer diagnostics, treatments (including surgery, radiotherapy and systemic therapy) and allied services. The NPCA conducted an organisational survey in 2021 via an online questionnaire sent to the prostate cancer clinical leads within each of the 138 NHS providers and we had a response rate of 93 %.There are many challenges to conducting an organisational survey and gaining a high completion rate is still difficult. The challenges that the NPCA faced included accuracy, completion, duplicates and discrepancies in responses. From this experience, we have developed some suggestions for the practical delivery and development of future organisational surveys. It was thanks to the use of many of these strategies, and the engagement of clinicians with the NPCA, that we were able to achieve such a high response rate.Despite these challenges, the importance of organisational surveys of cancer services is demonstrated by the better understanding of structure, processes and outcomes of cancer care according to the accessibility of facilities and their geographical organisation. This is essential for evaluating and improving the delivery of cancer care services across a region.

"The contribution of accounting to performance management: literature trends and research potential "

Performance management is becoming a widely analysed topic in the literature. With this research we aim to analyse the impact of the topic using quantitative research methods. In the same context we will identify existing trends and possible implications of accounting for the performance of entities. In order to achieve the aim of the research we will analyse internationally quoted articles. Data will be collected from the Web of Science database. In the actual analysis of the articles we aim to identify general aspects such as the geographic organisation of the publications, the evolution of interest in the topic for 2010-2020 period. At the end of the research we will come up with conclusions in which we will analyse possible ways of developing the topic through the lens of published articles and research.

Mapping a Magnetic Superstorm: March 1989 Geoelectric Hazards and Impacts on United States Power Systems

AbstractA study is made of the relations between geomagnetic and geoelectric field variation, Earth‐surface impedance, and operational interference (“anomalies”) experienced on electric‐power systems across the contiguous United States during the 13–14 March, 1989, magnetic storm. For this, a 1‐min‐resolution sequence of geomagnetic field maps is constructed from magnetometer time series acquired at ground‐based observatories. Induced geoelectric field maps are calculated by convolving the geomagnetic maps with magnetotelluric impedance tensors. During the storm, anomalies were concentrated where the lithosphere is electrically resistive, and when and where geoelectric field amplitudes were high. This was particularly true in the Mid‐Atlantic, Northeast, and the upper Midwest. Few anomalies were experienced in other parts of the Midwest and across much of the West, where the lithosphere is more conductive, and when and where geoelectric field amplitudes were low. Peak 1‐min‐resolution geoelectric field amplitude ranged from 21.66 V/km in Maine and 19.02 V/km in Virginia to <0.02 V/km in Idaho. Latitude‐dependent organization of geoelectric hazards by auroral‐zone electrojet currents is detectable, but it is much weaker than geographic organization due to surface impedance. Hazardous geoelectric fields were induced during different storm phases, at different local times, and, by inference, by a variety of ionospheric currents. Compared to geoelectric field amplitudes realized across the United States during March 1989, hazard maps used by utility companies to estimate systems exposure have much less geographic detail and a much smaller maximum‐to‐minimum range in geoelectric field amplitude. Future research would benefit from denser geomagnetic monitoring, additional magnetotelluric surveying, and access to power‐system impact data.

Selection shapes the landscape of functional variation in wild house mice

BackgroundThrough human-aided dispersal over the last ~ 10,000 years, house mice (Mus musculus) have recently colonized diverse habitats across the globe, promoting the emergence of new traits that confer adaptive advantages in distinct environments. Despite their status as the premier mammalian model system, the impact of this demographic and selective history on the global patterning of disease-relevant trait variation in wild mouse populations is poorly understood.ResultsHere, we leveraged 154 whole-genome sequences from diverse wild house mouse populations to survey the geographic organization of functional variation and systematically identify signals of positive selection. We show that a significant proportion of wild mouse variation is private to single populations, including numerous predicted functional alleles. In addition, we report strong signals of positive selection at many genes associated with both complex and Mendelian diseases in humans. Notably, we detect a significant excess of selection signals at disease-associated genes relative to null expectations, pointing to the important role of adaptation in shaping the landscape of functional variation in wild mouse populations. We also uncover strong signals of selection at multiple genes involved in starch digestion, including Mgam and Amy1. We speculate that the successful emergence of the human-mouse commensalism may have been facilitated, in part, by dietary adaptations at these loci. Finally, our work uncovers multiple cryptic structural variants that manifest as putative signals of positive selection, highlighting an important and under-appreciated source of false-positive signals in genome-wide selection scans.ConclusionsOverall, our findings highlight the role of adaptation in shaping wild mouse genetic variation at human disease-associated genes. Our work also highlights the biomedical relevance of wild mouse genetic diversity and underscores the potential for targeted sampling of mice from specific populations as a strategy for developing effective new mouse models of both rare and common human diseases.

What is Marxist geography today, or what is left of Marxist geography?

The history and geography of intellectual neglect of Marxism are the history and geography of Marxism itself. Scholars of different political persuasions and from different regions of the world, including some ‘Marxists’, have pointed to its various deficiencies ever since its origin. But is Marxism really as bad as it is made out to be? In this short article, I argue that it absolutely is not. I discuss my view of Marxism, including Marxist geography. The latter examines economy, politics, culture and nature/body from the vantage-point of space, place, scale and human transformation of nature. I also discuss what difference Marxism has made to my own agenda of abstract and concrete research. For me, Marxism fundamentally comprises ideas of Marx and Engels, and revolutionary Marxist socialists of the 20th century (Lenin, Luxemburg and Trotsky), and those who have critically developed their thinking. I discuss four major areas of Marxism: philosophy (dialectical and materialist views of society and nature), social theory, or historical materialism, (geographical) political economy, and theory of communist practice. Marxism treats class, including in its capitalist form, as the causally most important social relation which explains how human beings live their lives. Class relations, and capitalism, structure gender and racial oppression which in turn influence class relations at a concrete level, and which are behind the geographical organization of society. The main goal of Marxism is not to produce ideas for the sake of ideas. It is rather to arm the exploited masses with adequate ideas that describe, explain and critique the world from their standpoint, so they can engage in the fight to produce an alternative social-spatial arrangement, i.e. a democratic and classless society which is ecologically healthier and which avoids geographically uneven development intra-nationally and internationally.

Designation of Origin Distillates in Mexico: Value Chains and Territorial Development

Geographical Indications (GI) have been used in several countries, mainly in Europe, as tools to promote territorial development. These tools have been adopted in Latin American countries without serious reflection on their scope, limits, and advantages. One of the most relevant elements therein corresponds to the way in which these assets participate in value chains, whether short or long, which has important implications for governance, benefit distribution, geographic organization of value accumulation processes, among others. With that in mind, we identify the two most relevant Mexican GIs—namely Designation of Origin Tequila (DOT) and Designation of Origin Mezcal (DOM)—to analyze how their value chains have been constructed and their impact on territorial development. We conclude that GIs tend to adopt large value chains to satisfy long-distance demand, but they can have negative territorial effects if institutions are not strong enough to appropriately incorporate territorial stakeholders’ demands.

‘A lot of sharp teeth and claws’: Production culture and storytelling at National Geographic

This article examines the relationship between the production culture and storytelling practices of content producers for the National Geographic organization. Supplementing producer interviews with a textual and contextual analysis of National Geographic and the wildlife media it disseminates, this article suggests a number of political, economic and cultural factors that determine the focus of narratives created and disseminated by National Geographic across its many global media platforms.

Composición de tierras en el pueblo de indios de San Mateo, alcaldía mayor de Maravatío - Zitácuaro, siglos XVII y XVIII

El artículo trata el proceso de composición de tierras en la época novohispana con énfasis en el período de 1692 a 1720, y cómo esta forma de regularizar la propiedad rural tuvo impactos geográficos, políticos y territoriales en los pueblos de indios o de naturales. El caso resulta relevante pues con este acto jurídico, algunas de las comunidades agrarias de la actualidad demostraron la posesión quieta y pacífica de la tierra, desde tiempo inmemorial. Para ello se estudia el caso de la república de indios mazahuas de San Mateo, del Partido de Zitácuaro, Jurisdicción de Maravatío, en el centro de la Nueva España, con base en la revisión y análisis del título de composición de tierras, así como en la reconstrucción cartográfica de la vista de ojos.

Seasonality of the Microbial Community Composition in the North Atlantic

Planktonic communities constitute the basis of life in marine environments and have profound impacts in geochemical cycles. In the North Atlantic, seasonality drives annual transitions in the ecology of the water column. Phytoplankton bloom annually in spring as a result of these transitions, creating one of the major biological pulses in productivity on earth. The timing and geographical distribution of the spring bloom as well as the resulting biomass accumulation have largely been studied using the global capacity of satellite imaging. However, fine-scale variability in the taxonomic composition, spatial distribution, seasonal shifts, and ecological interactions with heterotrophic bacterioplankton has remained largely uncharacterized. The North Atlantic Aerosols and Marine Ecosystems Study (NAAMES) conducted four meridional transects to characterize plankton ecosystems in the context of the annual bloom cycle. Using 16S rRNA gene-based community profiles we analyzed the temporal and spatial variation in plankton communities. Seasonality in phytoplankton and bacterioplankton composition was apparent throughout the water column, with changes dependent on the hydrographic origin. From winter to spring in the subtropic and subpolar subregions, phytoplankton shifted from the predominance of cyanobacteria and picoeukaryotic green algae to diverse photosynthetic eukaryotes. By autumn, the subtropics were dominated by cyanobacteria, while a diverse array of eukaryotes dominated the subpolar subregions. Bacterioplankton were also strongly influenced by geographical subregions. SAR11, the most abundant bacteria in the surface ocean, displayed higher richness in the subtropics than the subpolar subregions. SAR11 subclades were differentially distributed between the two subregions. Subclades Ia.1 and Ia.3 co-occurred in the subpolar subregion, while Ia.1 dominated the subtropics. In the subtropical subregion during the winter, the relative abundance of SAR11 subclades “II” and 1c.1 were elevated in the upper mesopelagic. In the winter, SAR202 subclades generally prevalent in the bathypelagic were also dominant members in the upper mesopelagic zones. Co-varying network analysis confirmed the large-scale geographical organization of the plankton communities and provided insights into the vertical distribution of bacterioplankton. This study represents the most comprehensive survey of microbial profiles in the western North Atlantic to date, revealing stark seasonal differences in composition and richness delimited by the biogeographical distribution of the planktonic communities.

Time and Space in the Organization of Online Graffiti Art Image Collections

The research presented herein provides insight into the use of chronological and geographical organization in the management of noninstitutional graffiti art image collections online. The use of smartphones and other GPS-enabled technology may lead one to expect precision in the geographic location of images, but this is not the norm when image galleries are often based on submissions from a large variety of sources, a small percentage of which may include the artists of the original works. The fact that graffiti art is very often carried out illegally influences the granularity of geographic information provided by those who submit photos to online graffiti art websites, as well as the willingness of those managing the websites to divulge precise information. Concerning the element of time, images added to the websites also lack precision in the differentiation of when a work was completed, modified, painted over, buffed or otherwise removed, photographed, or added to the image collection. Despite these challenges, time and, even more so, space remain commonly encountered organizational divisions used by those who manage online image galleries of graffiti art.

Outbreak diversity in epidemic waves propagating through distinct geographical scales

A central feature of an emerging infectious disease in a pandemic scenario is the spread through geographical scales and the impacts on different locations according to the adopted mitigation protocols. We investigated a stochastic epidemic model with the metapopulation approach in which patches represent municipalities. Contagion follows a stochastic compartmental model for municipalities; the latter, in turn, interact with each other through recurrent mobility. As a case of study, we consider the epidemic of COVID-19 in Brazil performing data-driven simulations. Properties of the simulated epidemic curves have very broad distributions across different geographical locations and scales, from states, passing through intermediate and immediate regions down to municipality levels. Correlations between delay of the epidemic outbreak and distance from the respective capital cities were predicted to be strong in several states and weak in others, signaling influences of multiple epidemic foci propagating towards the inland cities. Responses of different regions to a same mitigation protocol can vary enormously implying that the policies of combating the epidemics must be engineered according to the region' specificity but integrated with the overall situation. Real series of reported cases confirm the qualitative scenarios predicted in simulations. Even though we restricted our study to Brazil, the prospects and model can be extended to other geographical organizations with heterogeneous demographic distributions.