Life Cycle Variation Research Articles

Genome-wide patterns of selection-drift variation strongly associate with organismal traits across the green plant lineage.

There are many gaps in our knowledge of how life cycle variation and organismal body architecture associate with molecular evolution. Using the diverse range of green algal body architectures and life cycle types as a test case, we hypothesize that increases in cytomorphological complexity are likely to be associated with a decrease in the effective population size, because larger-bodied organisms typically have smaller populations, resulting in increased drift. For life cycles, we expect haploid-dominant lineages to evolve under stronger selection intensity relative to diploid-dominant life cycles owing to masking of deleterious alleles in heterozygotes. We use a genome-scale data set spanning the phylogenetic diversity of green algae and phylogenetic comparative approaches to measure the relative selection intensity across different trait categories. We show stronger signatures of drift in lineages with more complex body architectures compared with unicellular lineages, which we consider to be a consequence of smaller effective population sizes of the more complex algae. Significantly higher rates of synonymous as well as nonsynonymous substitutions relative to other algal body architectures highlight that siphonous and siphonocladous body architectures, characteristic of many green seaweeds, form an interesting test case to study the potential impacts of genome redundancy on molecular evolution. Contrary to expectations, we show that levels of selection efficacy do not show a strong association with life cycle types in green algae. Taken together, our results underline the prominent impact of body architecture on the molecular evolution of green algal genomes.

Establishment of an Animal Model of Oral Squamous Cell Carcinoma Invading the Mandible.

To establish an animal model of oral squamous cell carcinoma invading the mandible through multi-sample experiments that verified the stability, repeatability, tumorigenicity and mandible destruction rate of the model. Oral squamous cell carcinoma cell suspension was injected into the outer side of the mandible through the anterior edge of the masseter muscle of naked mice to observe the tumourforming process. Then, the anatomical, histological and imaging examinations were carried out to determine whether the tumour had invaded the mandible. By comparing the tumour growth of multiple groups of various squamous cell carcinoma cells (CAL27, HN6 and HN30 cells), the changes in body weight and characteristics of tumour formation were compared, and the experience was summarised to further verify the stability, repeatability, tumour formation rate and arch damage rate of the model. The subsequent specimens of tumour-bearing nude mice were validated once the model had been established. In vitro, tumour tissue wrapped around the mandible's tumour-bearing side, and the local texture was tough with no resistance to acupuncture. Haematoxylin and eosin staining revealed that squamous cells were infiltrating the mandible in both the horizontal and sagittal planes. Microcomputed tomography results showed that the mandible on the tumour-bearing side displayed obvious erosion damage. Cell lines with various passage rates clearly had diverse tumour-bearing life cycles. This study successfully established an animal model of oral squamous cell carcinoma invasion of the mandible. The model has excellent biological stability, repeatability, tumorigenesis rate and mandible destruction rate.

Evolution of dirofilariasis diagnostic techniques from traditional morphological analysis to molecular-based techniques: a comprehensive review

Dirofilariasis, caused by the nematode Dirofilaria spp., poses significant challenges in diagnosis due to its diverse clinical manifestations and complex life cycle. This comprehensive literature review focuses on the evolution of diagnostic methodologies, spanning from traditional morphological analyses to modern emerging techniques in the context of dirofilariasis diagnosis. The review traces the historical progression of diagnostic modalities, encompassing traditional approaches such as microscopic examination, serological tests (including ELISA and IFA), radiographic imaging, ultrasonography, and necropsy, which laid the foundation for subsequent advancements. The integration of molecular diagnostics marks a significant turning point in dirofilariasis diagnosis with the adoption of polymerase chain reaction (PCR) assays and real-time PCR (qPCR) facilitating enhanced sensitivity and specificity. Furthermore, recent strides in next-generation sequencing (NGS) technologies, including whole–genome sequencing (WGS), targeted sequencing (TS), metagenomic sequencing (MS), and RNA sequencing (transcriptome sequencing), have revolutionized the landscape of dirofilariasis diagnostics. Emerging techniques such as loop-mediated isothermal amplification (LAMP), digital PCR (dPCR), and digital microfluidics are also explored for their potential to augment diagnostic accuracy. The review addresses challenges associated with standardizing molecular protocols, tackling false positives/negatives, and discusses the advantages and limitations of each technique. By providing a comprehensive overview of dirofilariasis diagnostic strategies, from traditional to cutting-edge methods, this review aims to enhance understanding of the disease’s diagnostic landscape. The insights gained have implications for improved disease management and guide future research endeavors toward refining diagnostic protocols and advancing therapeutic interventions.

The Relationship Between Self-Control Factors and Household Saving Behavior

We examined the effect of self-control factors on saving behavior based on the behavioral life cycle hypothesis, using the 2016 and 2019 Survey of Consumer Finances datasets. A model which included self-control factors (behavioral life cycle variables) had a more significant effect on saving behavior than a model that included only normative life cycle variables. Among self-control factors, having at least one saving rule was positively associated with saving behavior but saving goals were not significantly associated with saving behavior. Having a foreseeable major expense was negatively associated with saving behavior. The findings of this study can assist financial planners, counselors, and educators in developing and implementing strategies related to self-control factors to enhance saving behavior.

Genome Assembly and Annotation of Vietnamese Rice Lines with Diverse Life-Cycle Durations

Genome Assembly and Annotation of Vietnamese Rice Lines with Diverse Life-Cycle Durations

Decoding the puzzle: exploring the factors influencing homeownership in Togo

Purpose This study aims to analyze the factors influencing households housing tenure choices in Togo. Design/methodology/approach The authors applied a rigorous econometric approach, using Harmonized Household Living Conditions Survey (EHCVM) data from 2018 and 2021 to construct a longitudinal panel, and Unified Basic Welfare Indicators Questionnaire (QUIBB) data from 2006, 2011 and 2015 to construct a pseudo-panel. Findings The study reveals that a household’s life-cycle variables like age of the household head, marital status, household size and place of residence, have a significant influence on homeownership. In addition, households in the highest wealth quartiles and used heads of household are more likely to own their home. Research limitations/implications Housing policies focused on improving the financial sustainability of low-income households and reducing the transaction costs associated with property acquisition are essential to promoting homeownership. Practical implications As part of the implementation of the Government Roadmap 2020–2025, the government has committed to providing 20,000 affordable social housing units, aiming to significantly boost the supply of decent housing. However, the findings of this study highlight the need for targeted subsidy programs for low-income households, particularly for female-headed households and those living in urban areas. These subsidies could cover part of the cost of purchasing homes. For middle-income households, it is crucial to develop suitable financing mechanisms, such as low-interest mortgages and loan guarantees. Given demographic pressures and the high cost of public housing programs, promoting self-build remains essential. This support should be accompanied by the provision of low-cost building materials and technical training in innovative, sustainable construction methods. Additionally, improved access to employment and land regularization are essential prerequisites for the success of these initiatives. Originality/value Research on the determinants of tenure choice is relatively limited in sub-Saharan Africa due to the unavailability of housing survey data. This paper proposes a case study of Togo, whose housing market characteristics correspond to most sub-Saharan African countries. Furthermore, this study applied two methodological approaches commonly used in dynamic analyses, thereby enhancing the robustness of the findings.

The Rise of Pass-Throughs: an Empirical Investigation

Abstract Almost half of all private employment in the United States is within businesses that do not pay corporate income tax. Instead, business income passes through to the owners’ individual income taxes. This pass-through share of employment has more than tripled since the early 1980s. Using comprehensive, confidential administrative data, this paper highlights five core findings underlying this growth: (1) the rise in pass-throughs is pervasive across industries and states; (2) the pass-through share converges unconditionally across both; (3) entrants’ organisational choices drive 60% of the rise; (4) shifts in firm and organisational dynamics following the 1986 Tax Reform Act show continued effects through the 2000s; (5) organisational forms exhibit high persistence with little life-cycle variation. Our study implies that tax or regulatory policy changes might take decades to manifest fully.

Genome-wide quantification of RNA flow across subcellular compartments reveals determinants of the mammalian transcript life cycle

Dissecting the regulatory mechanisms controlling mammalian transcripts from production to degradation requires quantitative measurements of mRNA flow across the cell. We developed subcellular TimeLapse-seq to measure the rates at which RNAs are released from chromatin, exported from the nucleus, loaded onto polysomes, and degraded within the nucleus and cytoplasm in human and mouse cells. These rates varied substantially, yet transcripts from genes with related functions or targeted by the same transcription factors and RNA-binding proteins flowed across subcellular compartments with similar kinetics. Verifying these associations uncovered a link between DDX3X and nuclear export. For hundreds of RNA metabolism genes, most transcripts with retained introns were degraded by the nuclear exosome, while the remaining molecules were exported with stable cytoplasmic lifespans. Transcripts residing on chromatin for longer had extended poly(A) tails, whereas the reverse was observed for cytoplasmic mRNAs. Finally, machine learning identified molecular features that predicted the diverse life cycles of mRNAs.

INVERTEBRATE DIVERSITY FROM DEEP WELLS OF THE SOUTHERN BOUNDARY OF THE EDWARDS AQUIFER OF SOUTH-CENTRAL TEXAS

Abstract This study examined the invertebrate fauna from three deep wells located at the Uvalde National Fish Hatchery in south-central Texas. These wells provide a water source from geological strata of the southern boundary of the Edwards Aquifer ranging in age from Lower Cretaceous to Recent. Forty-seven collections, sampled on a continuous basis from November 2020 to January 2022, produced a total of 738 specimens comprising 15 different species. These collections reveal a diverse crustacean assemblage along with dominant numbers of the stygobiotic snail Balconorbis uvaldensis. This study provides a preliminary survey for future investigations of unidentified crustacean species as well as revealing seasonal variations in the reproductive life cycle of Balconorbis uvaldensis.

Let's talk about sex: Why reproductive systems matter for understanding algae.

Sex is a crucial process that has molecular, genetic, cellular, organismal, and population-level consequences for eukaryotic evolution. Eukaryotic life cycles are composed of alternating haploid and diploid phases but are constrained by the need to accommodate the phenotypes of these different phases. Critical gaps in our understanding of evolutionary drivers of the diversity in algae life cycles include how selection acts to stabilize and change features of the life cycle. Moreover, most eukaryotes are partially clonal, engaging in both sexual and asexual reproduction. Yet, our understanding of the variation in their reproductive systems is largely based on sexual reproduction in animals or angiosperms. The relative balance of sexual versus asexual reproduction not only controls but also is in turn controlled by standing genetic variability, thereby shaping evolutionary trajectories. Thus, we must quantitatively assess the consequences of the variation in life cycles on reproductive systems. Algae are a polyphyletic group spread across many of the major eukaryotic lineages, providing powerful models by which to resolve this knowledge gap. There is, however, an alarming lack of data about the population genetics of most algae and, therefore, the relative frequency of sexual versus asexual processes. For many algae, the occurrence of sexual reproduction is unknown, observations have been lost in overlooked papers, or data on population genetics do not yet exist. This greatly restricts our ability to forecast the consequences of climate change on algal populations inhabiting terrestrial, aquatic, and marine ecosystems. This perspective summarizes our extant knowledge and provides some future directions to pursue broadly across micro- and macroalgal species.

The impact of geochemical and life-cycle variables on carbon dioxide removal by enhanced rock weathering: Development and application of the Stella ERW model

The carbon dioxide removal (CDR) potential of enhanced rock weathering (ERW) depends on dynamic interactions between several biogeochemical and life-cycle variables. This paper reports results from a systems model developed to account for key variable interactions and provide a computational tool for optimizing ERW applications. We discuss the model development, comparisons with laboratory and field test data, and results from a series of sensitivity analyses for several hypothetical ERW applications. The simulations were performed using a model developed in Stella Architect, an object-oriented systems dynamics modeling code. The model tracks the amount of carbon dioxide consumed by the weathering of a user-specified mass of rock powder in a soil environment. The primary model variables are: rock powder particle size distribution, soil pH, soil temperature, soil pore water saturation index, and a biological weathering factor. The rock bulk composition is also a key variable as it defines the enhanced weathering potential of the rock powder. Life cycle variables such as carbon emissions from mining, rock crushing, and transport are also quantified. The model predictions are consistent with measured data. It predicts CDR values ranging from 1 to 12 t CO2 ha−1 (depending on conditions) for single applications of 20–40 t of rock ha−1 over a 10-year interval. Applying the model to a hypothetical large-scale ERW campaign in which basalt rock powder is applied to 25% and 75% of Brazilian cropland results in CDR values of 0.15 and 0.5 Gt CO2 over ten years, respectively (for a single application). Model results show that combinations of suboptimal rock type (i.e., low concentrations of divalent cations and slow weathering rates for field conditions) and suboptimal life-cycle variables (i.e., high vehicle emission factors and long rock transport distances) can result in net positive CO2 emissions for some hypothetical ERW scenarios. It is, therefore, emphasized that the quantitative co-optimization of geochemical, biological, and life-cycle variables is essential in the planning stages of ERW applications.

The Ackerman Institute: a journey of culture and diversity over six decades. A conversation with Evan Imber‐Black

AbstractThe Ackerman Institute for the Family, established in 1960 by Dr Nathan Ackerman, stands as one of the oldest and most respected family therapy institutes in the United States. Ackerman pioneered the integration of systemic insights into group settings, emphasised the crucial role of family in therapy, and advocated for the advancement and acceptance of family therapy. ‘The Ackerman’ played a pivotal role in launching Family Process, the first journal dedicated to academic activities in family therapy. Diversity and inclusion have been central tenets of Ackerman philosophy, evident in its programs, training courses, and staff composition. This commitment has produced a veritable cadre of family therapy leaders who have contributed significantly to both the Ackerman Institute and the profession, influencing policy decisions and clinical practices. One of the most esteemed and respected thought leaders and innovators of our field, who played a vital role in the legacy of several institutions, including the Ackerman, is Dr. Evan Imber‐Black. She served as a long‐time faculty member and director of the Ackerman Center for Families and Health. Her expertise encompasses the exploration of family rituals and family secrets, with a focus on the importance of rituals in providing meaning, identity, and connection across diverse cultures and family life cycles. As editor of Family Process for 8 years, she highlights the importance of examining scholarly work in the context of cultures as a requirement – we do not stand outside the culture – we are active participants. This paper is based on a conversation with Dr Evan Imber‐Black, held in June 2023, delving into her personal and professional experiences, her connection to the Ackerman Institute, and her influential work on family rituals and secrets. Through this exploration, the paper sheds light on her commitment to diversity and the lasting impact of Dr Imber‐Black's contributions to family therapy.

SUMOylation of the m6A reader YTHDF2 by PIAS1 promotes viral RNA decay to restrict EBV replication.

YTH N6-methyladenosine RNA-binding protein F2 (YTHDF2) is a member of the YTH protein family that binds to N6-methyladenosine (m6A)-modified RNA, regulating RNA stability and restricting viral replication, including Epstein-Barr virus (EBV). PIAS1 is an E3 small ubiquitin-like modifier (SUMO) ligase known as an EBV restriction factor, but its role in YTHDF2 SUMOylation remains unclear. In this study, we investigated the functional regulation of YTHDF2 by PIAS1. We found that PIAS1 promotes the SUMOylation of YTHDF2 at three specific lysine residues (K281, K571, and K572). Importantly, PIAS1 synergizes with wild-type YTHDF2, but not a SUMOylation-deficient mutant, to limit EBV lytic replication. Mechanistically, YTHDF2 lacking SUMOylation exhibits reduced binding to EBV transcripts, leading to increased viral mRNA stability. Furthermore, PIAS1 mediates SUMOylation of YTHDF2's paralogs, YTHDF1 and YTHDF3, to restrict EBV replication. These results collectively uncover a unique mechanism whereby YTHDF family proteins control EBV replication through PIAS1-mediated SUMOylation, highlighting the significance of SUMOylation in regulating viral mRNA stability and EBV replication.IMPORTANCEm6A RNA modification pathway plays important roles in diverse cellular processes and viral life cycle. Here, we investigated the relationship between PIAS1 and the m6A reader protein YTHDF2, which is involved in regulating RNA stability by binding to m6A-modified RNA. We found that both the N-terminal and C-terminal regions of YTHDF2 interact with PIAS1. We showed that PIAS1 promotes the SUMOylation of YTHDF2 at three specific lysine residues. We also demonstrated that PIAS1 enhances the anti-EBV activity of YTHDF2. We further revealed that PIAS1 mediates the SUMOylation of other YTHDF family members, namely, YTHDF1 and YTHDF3, to limit EBV replication. These findings together illuminate an important regulatory mechanism of YTHDF proteins in controlling viral RNA decay and EBV replication through PIAS1-mediated SUMOylation.

How do companies with different life cycles respond to carbon trading?—Analysis of the moderating role of government subsidies

Enterprises with diverse life cycles possess distinct survival and operational laws. Hence, it is crucial to comprehend whether all these enterprises can proficiently engage in green innovation under the guidance of carbon emissions trading (CET). This study leverages the quasi-natural experiment of CET policy, employing panel data encompassing A-share listed companies in Shanghai and Shenzhen spanning from 2008 to 2020. Through the application of the triple difference model, the research examines the influence of CET policy on the green innovation endeavors of enterprises characterized by various life cycles. The research outcomes reveal the following: 1) CET policy significantly impacts the green innovation of mature enterprises, and contributes to the enrichment of the quality of their green innovation endeavors. 2) Due to limitations pertaining to financing constraints and business expansion, CET policy fails to foster green innovation within the growth and decline phases of enterprises. 3) Government subsidies can overturn the unfavorable position of growth-stage enterprises in carbon emissions trading and propel them towards heightened green innovation. However, government subsidies do not yield a substantial moderating effect on the green innovation endeavors of maturity-stage enterprises. Simultaneously, even if declining-phase enterprises are subjected to government subsidies, these subsidies do not reverse their innovation disadvantage in carbon emissions rights trading. In addition, we also found that in areas with heightened public awareness of environmental protection and state-owned enterprises, the positive regulatory effect of government subsidies is more significant. The findings derived from this study bestow invaluable insights for decision-makers striving to optimize the implementation of the CET policy and effectively allocate government subsidies.

Selected Wildlife Trematodes.

The trematodes are a species-rich group of parasites, with some estimates suggesting that there are more than 24,000 species. However, the complexities associated with their taxonomic status and nomenclature can hinder explorations of the biology of wildlife trematodes, including fundamental aspects such as host use, life cycle variation, pathology, and disease. In this chapter, we review work on selected trematodes of amphibians, birds, mammals, and their snail intermediate hosts, with the goal of providing a tool kit on how to study trematodes of wildlife. We provide a brief introduction to each group of wildlife trematodes, followed by some examples of the challenges each group of trematodes has relative to the goal of their identification and understanding of the biology and interactions these organisms have with their wildlife hosts.

Profiling European Consumers that Engage in Boycotting

Boycotting involves abstention from buying specific products or brands for political, ethical, or ecological reasons. Boycott is usually framed as an expression of political consumerism and has been on the rise. Companies that suffer a boycott may endure severe consequences including long-term damaged brand image and harmed reputation. However, there is still an incomplete picture of the socio-political and demographic profile of boycotters. Most characterizations of political consumers are based on research that combines boycotters and buycotters under a single construct of political consumers, and yet these consumers are driven by different motivations. The objective of this exploratory study is to provide a general characterization of European political consumers that engage in boycotting. The data used was collected between the 25th of May, 2022 and the18th of September, 2022, and was retrieved from the 10th edition (2022) of the European Social Survey. The study employs binary logistic regression to assess the association between boycotting and various potential factors listed in extant literature. Results indicate that boycotting behaviour is affected by age and other life-cycle variables, gender, education, institutional trust, the degree of satisfaction with the political system and the government, the level of trust in information and communication technology, reported self-happiness and self-general health perceptions. In general, the parameters of the models suggest that European consumers that engage in boycotting behaviour tend to be female, young, well-educated, trust on national political institutions and make intensive use of digital media. The conclusions of the empirical study are discussed and interpreted in light of current theories of consumer behaviour that highlight the post-modern, fragmented and globalized characteristics of current western societies. The results of this study enrich the literature on consumer boycotts and confirm the predicting power of various socio-demographic, psychological and attitudinal variables. Avenues for future research are identified together with consideration of the study limitations.

Recent progress in research and forecasting of tropical cyclone outer size

This review article summarizes the current understanding and recent updates to tropical cyclone outer size and structure forecasting and research primarily since 2018 as part of the World Meteorological Organization's 10th International Workshop on Tropical Cyclones. A more complete understanding of tropical cyclone outer wind and precipitation is key to anticipating storm intensification and the scale and magnitude of landfalling hazards. We first discuss the relevance of tropical cyclone outer size and structure, improvements in our understanding of its life cycle and inter-basin variability, and the processes that impact outer size changes. We next focus on current forecasting practices and differences among warning centers, recent advances in operational forecasting, and new observations of the storm outer wind field. We also summarize recent research on projected tropical cyclone outer size and structure changes by the late 21st century. Finally, we discuss recommendations for the future of tropical cyclone outer size forecasting and research.

Compartments of roots and mature leaves are key hubs in the connectivity of tea-plant mycobiomes and are influenced by environmental factors and host age

Understanding the tripartite consortium of crop, mycobiome, and environment is necessary to advance smart farming. Owing to their life cycle of hundreds of years, tea plants are excellent models for studying these entwined relationships; however, observations on this globally important cash crop with numerous health benefits are still rudimentary. Here, the fungal taxa along the soil–tea plant continuum in tea gardens of different ages in famous high-quality tea-growing regions in China were characterized using DNA metabarcoding. Using machine learning, we dissected the spatiotemporal distribution, co-occurrence patterns, assembly, and their associations in different compartments of tea-plant mycobiomes, and further explored how these potential interactions were driven by environmental factors and tree age, and how they influenced the market prices of tea. The results revealed that Compartment niche differentiation was the key driving force behind variation in the tea-plant mycobiome. The mycobiome of roots had the highest specific proportion and convergence and almost did not overlap with the soil. The enrichment ratio of developing leaves to root mycobiome increased with increasing tree age, while mature leaves showed the highest value in the Laobanzhang (LBZ) tea garden with top market prices and displayed the strongest depletion effect on mycobiome association along the soil–tea plant continuum. The balance between determinism and stochasticity in the assembly process was co-driven by compartment niches and life cycle variation. Fungal guild analysis showed that altitude indirectly affected market prices of tea by mediating the abundance of the plant pathogen. The relative importance of plant pathogen and ectomycorrhizae could be used to assess the age of tea. Biomarkers were mainly distributed in soil compartments, and Clavulinopsis miyabeana, Mortierella longata, and Saitozyma sp. may affect the spatiotemporal dynamics of tea-plant mycobiomes and their ecosystem services. Soil properties (mainly total potassium) and tree age indirectly affected the developing leaves via positively influencing the mycobiome of mature leaves. In contrast, the climate directly and significantly drove the mycobiome composition of the developing leaves. Moreover, the proportion of negative correlations in the co-occurrence network positively regulated tea-plant mycobiome assembly, which significantly affected the market prices of tea in the structural equation model with network complexity as hub. These findings indicate that mycobiome signatures play pivotal roles in the adaptive evolution and fungal disease control of tea plants and can help develop better agricultural practices that focus on both plant health and financial profits, and provide a new strategy for assessing tea quality grade and age.

Diploid Nuclei Occur throughout the Life Cycles of Pucciniales Fungi.

Within Eukaryotes, fungi are the typical representatives of haplontic life cycles. Basidiomycota fungi are dikaryotic in extensive parts of their life cycle, but diploid nuclei are known to form only in basidia. Among Basidiomycota, the Pucciniales are notorious for presenting the most complex life cycles, with high host specialization, and for their expanded genomes. Using cytogenomic (flow cytometry and cell sorting on propidium iodide-stained nuclei) and cytogenetic (FISH with rDNA probe) approaches, we report the widespread occurrence of replicating haploid and diploid nuclei (i.e., 1C, 2C and a small proportion of 4C nuclei) in diverse life cycle stages (pycnial, aecial, uredinial, and telial) of all 35 Pucciniales species analyzed, but not in sister taxa. These results suggest that the Pucciniales life cycle is distinct from any cycle known, i.e., neither haplontic, diplontic nor haplodiplontic, corroborating patchy and disregarded previous evidence. However, the biological basis and significance of this phenomenon remain undisclosed. IMPORTANCE Within Eukaryotes, fungi are the typical representatives of haplontic life cycles, contrasting with plants and animals. As such, fungi thus contain haploid nuclei throughout their life cycles, with sexual reproduction generating a single diploid cell upon karyogamy that immediately undergoes meiosis, thus resuming the haploid cycle. In this work, using cytogenetic and cytogenomic tools, we demonstrate that a vast group of fungi presents diploid nuclei throughout their life cycles, along with haploid nuclei, and that both types of nuclei replicate. Moreover, haploid nuclei are absent from urediniospores. The phenomenon appears to be transversal to the organisms in the order Pucciniales (rust fungi) and it does not occur in neighboring taxa, but a biological explanation or function for it remains elusive.

Determinants of housing moving intention of urban low-income residents in China: Life-cycle, lived experience, and place

This paper examines the residential mobility of urban low-income residents in two Chinese cities using survey data. Contrary to previous studies, our results reveal a relatively low level of housing mobility among the urban poor. In exploring the determinants of low-income housing mobility, we employ both life-cycle and social-psychological theories, with particular attention to the role of place-based factors and their interactions with other variables. Our analysis uncovers a strong relationship between housing mobility and life-cycle variables, albeit with considerable heterogeneity among residents. Additionally, the lived experience of housing emerges as a significant predictor of mobility. Lastly, we find that the interplay of place and space exerts a profound and complex influence on this process, shaping moving intentions at various geographical scales and interacting with other factors to determine the housing mobility of urban low-income groups.