bluuebunny/crossref_metadata_2025 huggingface dataset:
Dimension approximation in smooth dynamical systems
Authors: CAO YONGLUO , WANG JUAN , ZHAO YUN
Published: April 2023

For a non-conformal repeller
$\Lambda $
of a
$C^{1+\alpha }$
map f preserving an ergodic measure
$\mu $
of positive entropy, this paper shows that the Lyapunov dimension of
$\mu $
can be approximated gradually by the Carathéodory singular dimension of a sequence of horseshoes. For a
$C^{1+\alpha }$
diffeomorphism f preserving a hyperbolic ergodic measure
$\mu $
of positive entropy, if
$(f, \mu )$
has only two Lyapunov exponents
$\unicode{x3bb} _u(\mu )>0>\unicode{x3bb} _s(\mu )$
, then the Hausdorff or lower box or upper box dimension of
$\mu $
can be approximated by the corresponding dimension of the horseshoes
$\{\Lambda _n\}$
. The same statement holds true if f is a
$C^1$
diffeomorphism with a dominated Oseledet’s splitting with respect to
$\mu $
.
Grid method for divergence of averages
Authors: MONDAL SOVANLAL
Published: April 2023

In this paper, we will introduce the ‘grid method’ to prove that the extreme case of oscillation occurs for the averages obtained by sampling a flow along the sequence of times of the form
$\{n^\alpha : n\in {\mathbb {N}}\}$
, where
$\alpha $
is a positive non-integer rational number. Such behavior of a sequence is known as the strong sweeping-out property. By using the same method, we will give an example of a general class of sequences which satisfy the strong sweeping-out property. This class of sequences may be useful to solve a long-standing open problem: for a given irrational
$\alpha $
, whether the sequence
$(n^\alpha )$
is bad for pointwise ergodic theorem in
$L^2$
or not. In the process of proving this result, we will also prove a continuous version of the Conze principle.
Computing Lagrangian means
Authors: Kafiabad Hossein A. , Vanneste Jacques
Published: April 2023

Lagrangian averaging plays an important role in the analysis of wave–mean-flow interactions and other multiscale fluid phenomena. The numerical computation of Lagrangian means, e.g. from simulation data, is, however, challenging. Typical implementations require tracking a large number of particles to construct Lagrangian time series, which are then averaged using a low-pass filter. This has drawbacks that include large memory demands, particle clustering and complications of parallelisation. We develop a novel approach in which the Lagrangian means of various fields (including particle positions) are computed by solving partial differential equations (PDEs) that are integrated over successive averaging time intervals. We propose two strategies, distinguished by their spatial independent variables. The first, which generalises the algorithm of Kafiabad (J. Fluid Mech., vol. 940, 2022, A2), uses end-of-interval particle positions; the second uses directly the Lagrangian mean positions. The PDEs can be discretised in a variety of ways, e.g. using the same discretisation as that employed for the governing dynamical equations, and solved on-the-fly to minimise the memory footprint. We illustrate the new approach with a pseudo-spectral implementation for the rotating shallow-water model. Two applications to flows that combine vortical turbulence and Poincaré waves demonstrate the superiority of Lagrangian averaging over Eulerian averaging for wave–vortex separation.
Food security among SNAP participants 2019 to 2021: a cross-sectional analysis of current population survey food security supplement data
Authors: Brady Patrick J. , Harnack Lisa , Widome Rachel , Berry Kaitlyn M. , Valluri Sruthi
Published: April 2023

Surveillance data indicate that food security rates increased among Supplemental Nutrition Assistance Program (SNAP) participants during the COVID-19 pandemic (2020 and 2021) compared with pre-pandemic (2019), but this could have been due to increased participation from better resourced households. Our objective was to examine if demographic differences between SNAP-participating households in each year were responsible for the increased prevalence of food secure households. We calculated the observed 30-d food security prevalence among SNAP-participating households for each year. We used indirect standardisation to produce expected 2020 and 2021 prevalences with 2019 as the standard population using household size, income, age, sex, race, Hispanic ethnicity, presence of children, single parent household, metropolitan status and census region. We calculated standardised prevalence ratios (SPRs) to understand if the observed prevalence was higher than expected given any changes in the demographic profile compared to 2019. The Current Population Survey data were collected by the United States Census Bureau and Department of Agriculture. Our sample included 5,245 SNAP-participating households. The observed prevalence of food secure households increased by 3⋅6 percentage points comparing 2019 to 2020 (SPR = 1⋅06, 95 % confidence interval = 1⋅00, 1⋅11) and by 8⋅6 percentage comparing 2019 to 2021 (SPR = 1⋅13, 95 % confidence interval = 1⋅07, 1⋅18). The greater prevalence of food secure SNAP households during the pandemic did not appear to be attributable to socio-demographic differences compared to pre-pandemic. Despite hesitance among policymakers to expand or enhance social safety net programmes, permanently incorporating COVID-19-related policy interventions could lessen food insecurity in years to come.
The Silent Voice of Guillermo Cabrera Infante in Exorcismos de esti(l)o
Authors: Morales Benito Lidia
Published: April 2023

Exorcismos de esti(l)o is one of Guillermo Cabrera Infante’s least studied books. It is nevertheless of essential importance for understanding the entirety of his poetics. It is a book that condenses the pain of the ostracism and the betrayal inflicted by the revolutionary regime that Cabrera had so strongly supported. The purpose of this article is to highlight the implicit elements of the text that support this hypothesis. It considers the strategies used by the author throughout Exorcismos de esti(l)o to practice the language with which he obsessively tries to draw, in his novelas del yo, a portrait of a lost and unrecoverable Havana, the hopeful Havana preceding the Cuban Revolution. It is an impossible yet obstinate mission. This is why the texts that articulate the impossibility of representation and the anguish that this mission generates deserve special attention.
The Southern-sky MWA Rapid Two-metre (SMART) pulsar survey—II. Survey status, pulsar census, and first pulsar discoveries
Authors: Bhat N. D. R. , Swainston N. A. , McSweeney S. J. , Xue M. , Meyers B.W. , Kudale S. , Dai S. , Tremblay S. E. , van Straten W. , Shannon R. M. , Smith K. R. , Sokolowski M. , Ord S. M. , Sleap G. , Williams A. , Hancock P. J. , Lange R. , Tocknell J. , Johnston-Hollitt M. , Kaplan D. L. , Tingay S. J. , Walker M.
Published: April 2023

In Paper I, we presented an overview of the Southern-sky MWA Rapid Two-metre (SMART) survey, including the survey design and search pipeline. While the combination of MWA’s large field-of-view and the voltage capture system brings a survey speed of

${\sim} 450\, {\textrm{deg}}^{2}\,\textrm{h}^{-1}$

, the progression of the survey relies on the availability of compact configuration of the Phase II array. Over the past few years, by taking advantage of multiple windows of opportunity when the compact configuration was available, we have advanced the survey to 75% of the planned sky coverage. To date, about 10% of the data collected thus far have been processed for a first-pass search, where 10 min of observation is processed for dispersion measures out to 250

${\textrm{pc cm}}^{-3}$

, to realise a shallow survey that is largely sensitive to long-period pulsars. The ongoing analysis has led to two new pulsar discoveries, as well as an independent discovery and a rediscovery of a previously incorrectly characterised pulsar, all from

${\sim} 3\% $

of the data for which candidate scrutiny is completed. In this sequel to Paper I, we describe the strategies for further detailed follow-up including improved sky localisation and convergence to timing solution, and illustrate them using example pulsar discoveries. The processing has also led to re-detection of 120 pulsars in the SMART observing band, bringing the total number of pulsars detected to date with the MWA to 180, and these are used to assess the search sensitivity of current processing pipelines. The planned second-pass (deep survey) processing is expected to yield a three-fold increase in sensitivity for long-period pulsars, and a substantial improvement to millisecond pulsars by adopting optimal de-dispersion plans. The SMART survey will complement the highly successful Parkes High Time Resolution Universe survey at 1.2–1.5 GHz, and inform future large survey efforts such as those planned with the low-frequency Square Kilometre Array (SKA-Low).
Rethinking international intervention through coeval engagement: Non-formal youth education and the politics of improvement
Authors: Kušić Katarina
Published: April 2023

After important critiques highlighted that studies of peacebuilding and statebuilding tend to bypass people living the consequences of intervention, scholars moved to include local experiences and subjects into knowledge production. This article builds upon these efforts by identifying and then furthering their common goal of coeval engagement. Coeval engagement implies encountering interlocutors as contemporaneous subjects of international politics and centring their experiences as a base for knowledge production. While the urgency and ongoing failures of coeval engagement are widely discussed, I focus on a thus far unconsidered possibility: that coeval engagement is impossible within the conceptual confines of intervention itself. The article delineates two defining parameters of intervention thinking that limit ongoing efforts at coeval engagement: predefined fields of visibility and the local-international binary. As an alternative, it proposes seeing intervention as part of a wider politics of improvement. This conceptual shift leads to unexpected empirical sites and continues challenging intervention’s constitutive binaries. The potential of this reorientation is demonstrated by showing how a common tool of ‘soft’ statebuliding – non-formal youth education – functions within the politics of youth (un)employment in Serbia.
Working memory and second language writing: A systematic review
Authors: Li Shaofeng
Published: April 2023

This article reports on a comprehensive synthesis of the literature on the role of working memory in second language (L2) writing. It starts with an overview and clarification of the construct and measurement of working memory, followed by an elaboration of major theoretical models informing the synthesized research. The article then presents a synthesis of the methods and results of the 16 studies that have been conducted on the associations between working memory and L2 writing. The methodological synthesis encompasses research design, methods of working memory, measurement of writing performance, methods of data elicitation for writing processes, and data analysis and reporting. The results of the synthesized studies demonstrate that (1) working memory is largely unrelated to overall writing proficiency; (2) it is predictive of specific aspects of L2 composition such as complexity, accuracy, and fluency; (3) the role of working memory varies as a function of genre, proficiency, target structure, instruction type, and task demands; and (4) verbal working memory, phonological short-term memory, visual-spatial working memory, and executive functions (inhibiting, shifting, and updating) have differential associations with the process and product aspects of L2 writing. The methods and results are discussed by identifying trends, accounting for disparities, clarifying confusion, recommending solutions, and proposing new directions.
Equations of mirrors to log Calabi–Yau pairs via the heart of canonical wall structures
Authors: ARGÜZ HÜLYA
Published: April 2023

Gross and Siebert developed a program for constructing in arbitrary dimension a mirror family to a log Calabi–Yau pair (X, D), consisting of a smooth projective variety X with a normal-crossing anti-canonical divisor D in X. In this paper, we provide an algorithm to practically compute explicit equations of the mirror family in the case when X is obtained as a blow-up of a toric variety along hypersurfaces in its toric boundary, and D is the strict transform of the toric boundary. The main ingredient is the heart of the canonical wall structure associated to such pairs (X, D), which is constructed purely combinatorially, following our previous work with Mark Gross. In the case when we blow up a single hypersurface we show that our results agree with previous results computed symplectically by Aroux–Abouzaid–Katzarkov. In the situation when the locus of blow-up is formed by more than a single hypersurface, due to infinitely many walls interacting, writing the equations becomes significantly more challenging. We provide the first examples of explicit equations for mirror families in such situations.
Effects of irrigation and nitrogen fertilizer application on growth, yield and quality of different rice varieties in arid areas of Xinjiang
Authors: Buhailiqem Abliz , Zhu Chunquan , Yuan Jie , Zhang Yanhong , Zhao Zhiqiang , Wen Xiaorong , Wang Shimei , Kang Mingtai , Tang Fusen , Wang Fengbin , Zhang Junhua
Published: April 2023

Nitrogen fertilizer and water are two major nutrients required for the optimal production of rice worldwide. The utilization of different irrigation techniques to save water and fertigation to maximize rice production has been the main focus. A field experiment was conducted to explore the responses of 16 rice varieties to different irrigation and nitrogen fertilizer regimes. Two nitrogen treatments, 270 kg ha−1and 225 kg ha−1(ureaN≥ 46.4%), and two irrigation regimes, 8.7 t ha−1and 5.22 t ha−1, were applied three times. Plant height and the soil and plant analyser development (SPAD) values were measured throughout the growth period. The total yield and quality characteristics of the rice varieties were also determined. Based on the yield, the 16 rice varieties were divided into three groups: high yield (I), middle yield (II) and low yield (III) using cluster analysis. A positive correlation was found between the growth period and yield of these 16 rice varieties. In the water-deficient regime, the growth period of the 16 varieties was reduced by 1.68–2.93%. Furthermore, nitrogen- and water-deficient regimes had significant effects on the polishing rate, protein content and taste values of all varieties. At maturity stage under these regimes, plant height and chlorophyll SPAD values were decreased by 1.25–6.05% and 1.60–31.48%, respectively. Deficient nitrogen fertilization, along with appropriate irrigation, is an effective method for the efficient utilization of irrigation and fertilizer resources in rice-growing areas.
A novel parent selection strategy for the development of salt-tolerant cotton cultivars
Authors: Tahir Muhammad , Farooq Muhammad Awais , Chaudry Muhammad Tanees , Akram Umar , Shafique Muhammad Sohaib , Shakeel Amir
Published: April 2023

Salinity poses a major obstacle in increasing the yield of cotton. To explore genetic material that can yield better under salt stress conditions, eight parents including 5 females and 3 testers were crossed in line×tester mating design. After successful completion of crossing, parents and their 15 crosses were evaluated for seed cotton yield, within boll yield components, fibre quality, ionic and biochemical traits under control and NaCl salt stressed conditions (10 and 20 dSm−1). Under salt stress conditions seed cotton yield, fibre length and fibre strength decreased in all genotypes whereas, lint percentage and fibre fineness increased. Among parents RH-647 and among crosses FH-214 × FH-2015 performed better for seed cotton yield while for fibre quality traits under salt stress conditions among parents KEHKSHAN, and among crosses FH-214 × KEHKSHAN performed better. Results suggested that plant height, boll weight, lint percentage, fibre length and fibre strength are reliable traits for the selection of salt tolerant genotypes in the future cotton breeding programs.
Substituting Coffee and Tea in the Eighteenth Century: A Rural and Material History with Global Implications
Authors: Hodacs Hanna
Published: April 2023

This article discusses the material history of coffee and tea by drawing on mid-eighteenth-century substitute recipes collected by physicians in different provinces of Sweden, applying perspectives from economic history, the history of science, medicine, and globalization. The starting point for the analysis is that a substitute can be said to reflect what are perceived as the most important properties, in terms of look, feel, taste, and scent, of the thing being copied. The products of a predominantly self-sustained agrarian world, the tea and coffee substitutes offered a distinctive rural alternative to the new exotic beverages. In terms of ecology and economy, this context encompassed large parts of central and north-eastern Europe; it also involved areas with a history of consumption that differed considerably from those of the cosmopolitan elites which have hitherto dominated the scholarship on eighteenth-century coffee and tea. The article finally suggests that the ways in which early modern substitutes were consumed and processed helped pave the way for the mass consumption of imported goods in rural areas of Europe in the following centuries.
Needs for care of residents with schizophrenia spectrum disorders and association with daily activities and mood monitored with experience sampling method: the DIAPASON study
Authors: Martinelli Alessandra , D'Addazio Miriam , Zamparini Manuel , Thornicroft Graham , Torino Gabriele , Zarbo Cristina , Rocchetti Matteo , Starace Fabrizio , Casiraghi Letizia , Ruggeri Mirella , de Girolamo Giovanni ,   the DiAPASon Collaborators
Published: April 2023

Aims

Care needs represent an essential paradigm in planning residential facility (RF) interventions. However, possible disagreements between users and staff are critical issues in service delivery. The Experience Sampling Method (ESM) tracks experiences in the real world and real time. This study aimed to evaluate the care needs of patients with schizophrenia spectrum disorder (SSD) in RFs and its association with daily activities and mood monitored using the ESM.

Methods

As part of the DIAPASON project, 313 residents with SSD were recruited from 99 Italian RFs. Sociodemographic and clinical characteristics were recorded. Care needs, the severity of symptomatology and negative symptoms were assessed. Fifty-six residents were also assessed for 7 consecutive days using the mobile ESM. Descriptive, agreement, predictor and moderator analyses were conducted.

Results

The staff rated a higher number of total and met needs than service users (p < 0.001). Only a slight agreement between users and staff on unmet needs was found in self-care (k = 0.106) and information (k = 0.100) needs, while a moderate agreement was found in accommodation (k = 0.484), food (k = 0.406), childcare (k = 0.530), physical health (k = 0.470), telephone (k = 0.458) and transport (k = 0.425) needs. Older age (−0.15; p < 0.01), longer SSD diagnosis (−0.16; p < 0.01), higher collaboration (−0.16; p < 0.01) and lower symptomatology (−0.16; p < 0.01) decreased the number of unmet needs, while being a female (0.27; p < 0.05) and a shorter length of stay in an RF (0.54; p < 0.001) increased the number of unmet needs. A higher number of unmet needs was associated with a lower amount of time spent in leisure activities or reporting a positive mood: on the contrary, more unmet needs were associated with a greater amount of time spent in religious or non-productive activities. The associations between unmet needs rated by staff and users and momentary mood as assessed using the ESM were not moderated by the severity of symptomatology.

Conclusions

Although care needs are fundamental in planning residential activities aimed at recovery-oriented rehabilitation, RF interventions did not fully meet users' needs, and some disagreements on unmet needs between users and staff were reported. Further efforts are necessary to overcome Italian RF limits in delivering rehabilitative interventions defined by real users' needs to facilitate users' productivity and progress towards personal recovery.
Second-to-Second Affective Responses to Images Correspond With Affective Reactivity, Variability, and Instability in Daily Life
Authors: Klein Robert J. , Rapaport Russell , Gyorda Joseph A. , Jacobson Nicholas C. , Robinson Michael D.
Published: April 2023

Abstract: Two distinct literatures have evolved to study within-person changes in affect over time. One literature has examined affect dynamics with millisecond-level resolution under controlled laboratory conditions, and the second literature has captured affective dynamics across much longer timescales (e.g., hours or days) within the relatively uncontrolled but more ecologically valid conditions of daily life. Despite the importance of linking these literatures, very little research has been done so far. In the laboratory, peak affect intensities and reaction durations were quantified using a paradigm that captures second-to-second changes in subjective affect elicited by provocative images. In two studies, analyses attempted to link these micro-dynamic indexes to fluctuations in daily affect ratings collected via daily protocols up to 4 weeks later. Although peak intensity and reaction duration scores from the laboratory did not consistently relate to daily scores pertaining to affect variability or instability, the total magnitude of changes in affect following images did display relationships of this type. In addition, higher peaks in the laboratory predicted larger intensity reactions to salient daily events. Together, the studies provide insights into the mechanisms through which correspondences and noncorrespondences between laboratory reactivity indices and daily affect dynamic measures can be expected.
CubeSat GPS Observation of Traveling Ionospheric Disturbances After the 2022 Hunga‐Tonga Hunga‐Ha'apai Volcanic Eruption and Its Potential Use for Tsunami Warning
Authors: Han Shin‐Chan , McClusky Simon , Mikesell T. Dylan , Rolland Lucie , Okal Emile , Benson Craig
Published: April 2023

Multiple passages of the atmospheric (Lamb) waves were recorded globally after the Hunga Tonga‐Hunga Ha'apai (HTHH) volcanic eruption on 15 January 2022. The waves perturbed the ionosphere and produced traveling ionospheric disturbances (TIDs) that were observed from the ground network of Global Positioning System (GPS) receivers. This study presents new observations of TIDs at higher altitudes (>550 km) from CubeSat GPS tracking data. The satellite sampling along many CubeSat orbits enable to map broader spatio‐temporal patterns of the TID propagation compared to ground receivers. Due to the larger spatial coverage over a shorter period of time, the CubeSat measurements provide complementary information to stationary ground receivers. We found that the amplitude of the HTHH‐induced ionospheric perturbations at high altitudes (>550 km) are as large as 10 TECU (1 TECU = 1016 electrons/m2) in slant total electron content between CubeSats and GPS satellites. The TIDs traveled along with the Lamb waves and were recorded by CubeSats above India 12 hr after the eruption and at the antipode of the eruption 16 hr after. These suggest that the ionospheric disturbances reached to the high altitudes and traveled globally as a speed of ∼350 m/s. The TIDs were also detected by CubeSats above the Australian continent several hours before the (conventional) tsunami made landfall on the Australian coasts. We discuss a new opportunity to study the upper ionosphere and its coupling with the solid Earth and to develop advanced monitoring systems of geohazards by the advent of low‐cost small satellite technology.
New Paleomagnetic Constraints on the Amalgamation of the Tuva and Mongolia Blocks From Late Carboniferous Andesites in the Mongolia Block
Authors: Ren Qiang , Zhang Shihong , Hou Mingcai , Chen Anqing , Wu Huaichun , Yang Tianshui , Li Haiyan
Published: April 2023

The Tuva‐Mongolia collage system comprises the Tuva Block (TVB) and the Mongolia Block (MOB), which are located in the eastern Central Asian Orogenic Belt (CAOB). The timing of amalgamation of the TVB and MOB is unclear. To address this, we conducted a combined geochronological and paleomagnetic study of the andesitic Member 1 of the Baoligaomiao Formation, in the southeastern MOB. The andesites have a U‐Pb zircon age of 314.2 ± 1.7 Ma. A total of 65 paleomagnetic samples from 10 sites were subjected to stepwise thermal demagnetization and had stable magnetic signals. After removal of the low‐temperature viscous components acquired in the recent geomagnetic field, stable high‐temperature components (HTCs) were isolated from most samples. The HTCs passed the fold, conglomerate, and reversal tests, demonstrating their primary origins. Moreover, these andesites have averaged out paleosecular variations. The paleomagnetic pole for the MOB is located at 30.5°N/14.6°E (A95 = 7.4°) at ca. 314 Ma. Combining our new results with published late Paleozoic paleomagnetic poles for the MOB and TVB suggests that the two blocks were distant from each other during the Middle Devonian and merged into a single TVB‐MOB by ca. 315 Ma. The Devonian‐Carboniferous paleomagnetic, paleobiogeographic, and geological data indicate that the multiple microcontinents in the CAOB were separated by numerous ocean basins during the Middle Devonian. At ca. 315 Ma, the TVB‐MOB, Kazakhstan, and Siberia were amalgamated to form a ribbon‐like continent, which was associated with the evolution of the Mongol‐Okhotsk Ocean.
Ring Current Morphology From MMS Observations
Authors: Tan X. , Dunlop M. W. , Dong X.‐C. , Yang Y.‐Y. , Du Y.‐S. , Shen C. , Russell C. T. , Liu W.‐L.
Published: April 2023

We directly estimate the in situ current density of the Earth’s ring current (RC) using the curlometer method and investigate its morphology using the small spatial separations and high accuracy of the Magnetospheric Multiscale mission. Through statistical analysis of data from September 2015 to the end of 2016, covering the region of 2–8 RE (Earth radius, 6,371 km), we reveal an almost complete near‐equatorial (within ) RC morphology in terms of radial distance and magnetic local time (MLT) which complements and extends that found from previous studies. We found no evidence of RC enhancement on the dusk side during geomagnetic active periods, but details of MLT asymmetries in, and the boundary between, the inner (eastward) and outer (westward) currents are revealed. We propose that part of the asymmetry demonstrated here suggests that in addition to the overall persistence of the westward RC, two large banana‐like currents are directly observed, one which could arise from a peak of plasma pressure near ∼4.8 RE on the noon side and the other from a valley of plasma pressure which could arise near ∼4.8 RE on the night side.
Aims and Scope of JAMES
Authors: Griffies Stephen M. , Fan Jiwen , MacBean Natasha , Schneider Tapio
Published: April 2023

The mission of AGU's Journal of Advances in Modeling Earth Systems (JAMES) is to publish original research papers that advance the science underlying Earth system models and emerging from their use. JAMES' scope encompasses the outer envelope of the Earth system including the atmosphere, oceans, land surface, and cryosphere. It publishes papers that expand capabilities to model, understand, and predict the Earth system and the physical, chemical, and biological processes shaping it. In this editorial, we present general principles as well as specific notions that guide the strategy of JAMES' editors in realizing the journal's mission. This document serves as an update to Griffies et al. (2021), https://doi.org/10.1029/2021MS002567.
Novel ITGB6 variants cause hypoplastic-hypomineralized amelogenesis imperfecta and taurodontism: characterization of tooth phenotype and review of literature
Authors: Sriwattanapong Kanokwan , Theerapanon Thanakorn , Boonprakong Lawan , Srijunbarl Anucharte , Porntaveetus Thantrira , Shotelersuk Vorasuk
Published: April 2023

Objectives

To characterize phenotype and genotype of amelogenesis imperfecta (AI) in a Thai patient, and review of literature.

Materials and methods

Variants were identified using trio-exome and Sanger sequencing. The ITGB6 protein level in patient’s gingival cells was measured. The patient’s deciduous first molar was investigated for surface roughness, mineral density, microhardness, mineral composition, and ultrastructure.

Results

The patient exhibited hypoplastic-hypomineralized AI, taurodontism, and periodontal inflammation. Exome sequencing identified the novel compound heterozygous ITGB6 mutation, a nonsense c.625 G > T, p.(Gly209*) inherited from mother and a splicing c.1661-3 C > G from father, indicating AI type IH. The ITGB6 level in patient cells was significantly reduced, compared with controls. Analyses of a patient’s tooth showed a significant increase in roughness while mineral density of enamel and microhardness of enamel and dentin were significantly reduced. In dentin, carbon was significantly decreased while calcium, phosphorus, and oxygen levels were significantly increased. Severely collapsed enamel rods and a gap in dentinoenamel junction were observed. Of six affected families and eight ITGB6 variants that have been reported, our patient was the only one with taurodontism.

Conclusion

We report the hypoplasia/hypomineralization/taurodontism AI patient with disturbed tooth characteristics associated with the novel ITGB6 variants and reduced ITGB6 expression, expanding genotype, phenotype, and understanding of autosomal recessive AI.
Global monthly sectoral water use for 2010–2100 at 0.5° resolution across alternative futures
Authors: Khan Zarrar , Thompson Isaac , Vernon Chris R. , Graham Neal T. , Wild Thomas B. , Chen Min
Published: April 2023

Water usage is closely linked with societal goals that are both local and global in scale, such as sustainable development and economic growth. It is therefore of value, particularly for long-term planning, to understand how future sectoral water usage could evolve on a global scale at fine resolution. Additionally, future water usage could be strongly shaped by global forces, such as socioeconomic and climate change, and the multi-sector dynamic interactions those forces create. We generate a novel global gridded monthly sectoral water withdrawal and consumption dataset at 0.5° resolution for 2010–2100 for a diverse range of 75 scenarios. The scenarios are harmonized with the five Shared Socioeconomic Pathways (SSPs) and four Representative Concentration Pathways (RCPs) scenarios to support its usage in studies evaluating the implications of uncertain human and earth system change for future global and regional dynamics. To generate the data, we couple the Global Change Analysis Model (GCAM) with a land use spatial downscaling model (Demeter), a global hydrologic framework (Xanthos), and a water withdrawal downscaling model (Tethys).
Genomic resources for population analyses of an invasive insect pest Oryctes rhinoceros
Authors: Filipović Igor
Published: April 2023

Over the last few years, various types of NGS data have been accumulating for the coconut rhinoceros beetle (CRB, Oryctes rhinoceros), reflecting the growing interest in curtailing this invasive pest of palm trees. Whilst reference-free analyses of RNA-seq and RAD-seq datasets have been done for different CRB collections, recent availability of the CRB’s genome assembly provides an opportunity to collate diverse data and create a reference-based population dataset. Here, I release such a dataset containing 6,725,935 SNPs and genotypes called across 393 individual samples from 16 populations, using the previously published raw sequences generated in 9 different experiments (RAD-Seq, RNA-Seq, WGS). I also provide reference-based datasets for the CRB’s mitochondrial variants and for variants of its viral biocontrol agent Oryctes rhinoceros nudivirus. SNP data provide high resolution for determining the geographic origin of invasive CRB. With these genomic resources, new data can be analysed without re-processing the published samples and then integrated to expand the reference datasets.
A 2.5° × 2.5° gridded drought/flood grades dataset for eastern China during the last millennium
Authors: Hao Zhixin , Zheng Jingyun , Ge Quansheng , Bai Mengxin
Published: April 2023

Hydroclimate reconstruction for the last millennium is essential to understand the differences in hydroclimate extremes and their causes under cold/warm conditions. In this study, the first gridded drought/flood grades (D/F grades) dataset in eastern China (EC) during the last millennium was generated. This D/F grades dataset mainly consisted of two components. The first section was created by interpolating drought/flood grades from 1500 to 2000 using the angular distance weight method. Sampling error estimates were employed to assess the effects of the interpolated dataset. The second section for the D/F grades dataset during 960–1500 was generated by constructing best subset regression models using selected tree-ring chronologies in the United States through atmospheric teleconnection. The validation parameters of the calibration equations were also derived, including the adjusted R2, predicted R2, RE, and CE. This dataset provides critical support for investigating the characteristics and causes of hydroclimate extremes in EC at various spatiotemporal scales, as well as the relationship with climate modes, such as El Niño-Southern Oscillation, Pacific Decadal Oscillation, and East Asia Summer Monsoon.
Introduced and invasive alien species of Antarctica and the Southern Ocean Islands
Authors: Leihy Rachel I. , Peake Lou , Clarke David A. , Chown Steven L. , McGeoch Melodie A.
Published: April 2023

Open data on biological invasions are particularly critical in regions that are co-governed and/or where multiple independent parties have responsibility for preventing and controlling invasive alien species. The Antarctic is one such region where, in spite of multiple examples of invasion policy and management success, open, centralised data are not yet available. This dataset provides current and comprehensive information available on the identity, localities, establishment, eradication status, dates of introduction, habitat, and evidence of impact of known introduced and invasive alien species for the terrestrial and freshwater Antarctic and Southern Ocean region. It includes 3066 records for 1204 taxa and 36 individual localities. The evidence indicates that close to half of these species are not having an invasive impact, and that ~ 13% of records are of species considered locally invasive. The data are provided using current biodiversity and invasive alien species data and terminology standards. They provide a baseline for updating and maintaining the foundational knowledge needed to halt the rapidly growing risk of biological invasion in the region.
Parameter adaptive sliding mode trajectory tracking strategy with initial value identification for the swing in a hydraulic construction robot
Authors: Hou Jing-Wei , Ni Tao , Zhang Zhu-Xin
Published: April 2023

A novel trajectory tracking strategy is developed for a double actuated swing in a hydraulic construction robot. Specifically, a nonlinear hydraulic dynamics model of a double actuated swing is established, and a parameter adaptive sliding mode control strategy is designed to enhance the trajectory tracking performance. When an object is grabbed and unloaded, the moment of inertia of a swing considerably changes, and the performance of the estimation algorithm is generally inadequate. Thus, it is necessary to establish an algorithm to identify the initial value of the moment of inertia of the object. To this end, this paper proposes a novel initial value identification algorithm based on a two-DOF robot gravity force identification method combined with stereo vision information. The performance of the identification algorithm is enhanced. Simulations and experiments are performed to verify the effect of the novel control scheme.
Satellite monitoring of bio-fertilizer restoration in olive groves affected by Xylella fastidiosa subsp. pauca
Authors: Blonda Palma , Tarantino Cristina , Scortichini Marco , Maggi Sabino , Tarantino Maria , Adamo Maria
Published: April 2023

Xylella fastidiosa subsp. pauca (Xfp), has attacked the olive trees in Southern Italy with severe impacts on the olive agro-ecosystem. To reduce both the Xfp cell concentration and the disease symptom, a bio-fertilizer restoration technique has been used. Our study applied multi-resolution satellite data to evaluate the effectiveness of such technique at both field and tree scale. For field scale, a time series of High Resolution (HR) Sentinel-2 images, acquired in the months of July and August from 2015 to 2020, was employed. First, four spectral indices from treated and untreated fields were compared. Then, their trends were correlated to meteo-events. For tree-scale, Very High Resolution (VHR) Pléiades images were selected at the closest dates of the Sentinel-2 data to investigate the response to treatments of each different cultivar. All indices from HR and VHR images were higher in treated fields than in those untreated. The analysis of VHR indices revealed that Oliarola Salentina can respond better to treatments than Leccino and Cellina cultivars. All findings were in agreement with in-field PCR results. Hence, HR data could be used to evaluate plant conditions at field level after treatments, while VHR imagery could be used to optimize treatment doses per cultivar.
Identification and analysis of isoflavone reductase gene family in Gossypium hirsutum L.
Authors: Gui Yanting , Fu Guozhan , Li Xuelin , Dai Yinghao
Published: April 2023

Isoflavone reductase (IFR) is a key enzyme controlling isoflavone synthesis and widely involved in response to various stresses. In this study, the IFR genes in four Gossypium species and other 7 species were identified and analyzed in the whole genome, and the physicochemical properties, gene structures, cis-acting elements, chromosomal locations, collinearity relationships and expression patterns of IFR genes were systematically analyzed. 28, 28, 14 and 15 IFR genes were identified in Gossypium hirsutum, Gossypium barbadense, Gossypium arboreum and Gossypium raimondii, respectively, which were divided into five clades according to the evolutionary tree and gene structure. Collinear analysis showed that segmental duplication and whole genome duplication were the main driving forces in the process of evolution, and most genes underwent pure selection. Gene structure analysis showed that IFR gene family was relatively conserved. Cis-element analysis of promoter showed that most GhIFR genes contain cis-elements related to abiotic stresses and plant hormones. Analysis of GhIFR gene expression under different stresses showed that GhIFR genes were involved in the response to drought, salt, heat and cold stresses through corresponding network mechanisms, especially GhIFR9A. Phenotypic analysis after silencing GhIFR9A gene by VIGS was shown that GhIFR9A gene was involved in the response to salt stress. This study laid a foundation for the subsequent functional study of cotton IFR genes.
Temporal-topological properties of higher-order evolving networks
Authors: Ceria Alberto , Wang Huijuan
Published: April 2023

Human social interactions are typically recorded as time-specific dyadic interactions, and represented as evolving (temporal) networks, where links are activated/deactivated over time. However, individuals can interact in groups of more than two people. Such group interactions can be represented as higher-order events of an evolving network. Here, we propose methods to characterize the temporal-topological properties of higher-order events to compare networks and identify their (dis)similarities. We analyzed 8 real-world physical contact networks, finding the following: (a) Events of different orders close in time tend to be also close in topology; (b) Nodes participating in many different groups (events) of a given order tend to involve in many different groups (events) of another order; Thus, individuals tend to be consistently active or inactive in events across orders; (c) Local events that are close in topology are correlated in time, supporting observation (a). Differently, in 5 collaboration networks, observation (a) is almost absent; Consistently, no evident temporal correlation of local events has been observed in collaboration networks. Such differences between the two classes of networks may be explained by the fact that physical contacts are proximity based, in contrast to collaboration networks. Our methods may facilitate the investigation of how properties of higher-order events affect dynamic processes unfolding on them and possibly inspire the development of more refined models of higher-order time-varying networks.
Experimental evaluation of soapberry seed oil biodiesel performance in CRDI diesel engine
Authors: Sajjad Mohammed Owais Ahmed , Sathish T. , Rajasimman M. , Praveenkumar T. R.
Published: April 2023

Due to the ongoing demand for alternative fuels for CI engines, biodiesel-based research has received support globally. In this study, soapberry seed oil produced by transesterification process to creates biodiesel. It is referred to as BDSS (Biodiesel of Soapberry Seed). According to criteria, the oil qualities are recognized, hence, three different blends and pure diesel were tested in CRDI (Common Rail Direct Injection) engines. The blends descriptions are: 10BDSS (10% BDSS + 90% diesel), 20BDSS (20% BDSS + 80% diesel), and 30BDSS (30% BDSS + 70% diesel). The outcomes of the related tests for combustion, performance, and pollution were contrasted with those achieved using 100% diesel fuel. In this case, the mixing has resulted in worse braking thermal efficiency than diesel and lower residual emissions with greater NOx emissions. The superior results were obtained by 30BDSS, which had BTE of 27.82%, NOx emissions of 1348 ppm, peak pressure of 78.93 bar, heat release rate (HRR) of 61.15 J/deg, emissions of CO (0.81%), HC (11 ppm), and smoke opacity of 15.38%.
Exploring relationships between autistic traits and body temperature, circadian rhythms, and age
Authors: Hidaka Souta , Gotoh Mizuho , Yamamoto Shinya , Wada Makoto
Published: April 2023

The number of clinical diagnoses of autism spectrum disorder (ASD) is increasing annually. Interestingly, the human body temperature has also been reported to gradually decrease over the decades. An imbalance in the activation of the excitatory and inhibitory neurons is assumed to be involved in the pathogenesis of ASD. Neurophysiological evidence showed that brain activity decreases as cortical temperature increases, suggesting that an increase in brain temperature enhances the inhibitory neural mechanisms. Behavioral characteristics specific to clinical ASD were observed to be moderated when people with the diagnoses had a fever. To explore the possible relationship between ASD and body temperature in the general population, we conducted a survey study using a large population-based sample (N ~ 2000, in the age groups 20s to 70s). Through two surveys, multiple regression analyses did not show significant relationships between axillary temperatures and autistic traits measured by questionnaires (Autism Spectrum (AQ) and Empathy/Systemizing Quotients), controlling for covariates of age and self-reported circadian rhythms. Conversely, we consistently observed a negative relationship between AQ and age. People with higher AQ scores tended to have stronger eveningness. Our findings contribute to the understanding of age-related malleability and the irregularity of circadian rhythms related to autistic traits.
The bared external anal sphincter (BEAS), a new technique for high horseshoe anal fistula: a hospital-based cohort study
Authors: Zhu Jingyi , Du Peixin , Wang Zhenyi , Zheng De , Wang Qingming , Mei Zubing
Published: April 2023

The aim of this study was to introduce a new technique, the bared external anal sphincter technique, and to evaluate its effectiveness and safety for primary or recurrent high horseshoe anal fistula (HHAF). We used data from a tertiary referral hospital’s prospective database of a hospital-based cohort. All the patients underwent the bared external anal sphincter procedure. The main outcomes were short‐term clinical outcomes including the 6-month cure rate, Visual Analog Scale pain score (VAS-PS) and Cleveland Clinic Florida incontinence score (CCF-IS). The secondary outcomes included the Quality of Life in Patients with Anal Fistula Questionnaire score (QoLAF-QS), Bristol stool chart and postoperative complications. A total of 48 HHAF patients (39 males) with a mean age of 34.2 years (SD 9.04; range, 21–54) were analyzed in this retrospective study. At the 6-month follow-up, the average VAS-PS and CCF-IS were 0.81 (SD 2.28; range, 0–10) and 1.29 (SD 2.87; range, 0–13), respectively. QoLAF-QS showed that the bared external anal sphincter procedure had no impact over their quality of life in 45 patients (93.75%), limited impact in 2 patients (4.16%), and moderate impact in one patient (2.08%). The Bristol stool scale showed that all patients had normal stool characteristics. The 6-month cure rate was 93.75%. Three patients (6.25%) experienced recurrent symptoms but recovered after surgical management. Urinary retention occurred in 1 case (2.78%). No other postoperative complications were reported. No patient had anal incontinence. The bared external anal sphincter procedure is a safe, effective and sphincter-sparing approach for patients with primary or recurrent HHAF in terms of short‐term results.
Combined X-ray absorption and SEM–EDX spectroscopic analysis for the speciation of thorium in soil
Authors: Ratnayake Sanduni , Lützenkirchen Johannes , Finck Nicolas , Schild Dieter , Heberling Frank , Gil-Díaz Teba , Dardenne Kathy , Rothe Jörg , Geckeis Horst
Published: April 2023

Mobility and bioavailability of radionuclides in the environment strongly depend on their aqueous speciation, adsorption behavior and the solubility of relevant solid phases. In the present context, we focus on naturally occurring Th-232 at a location in central Sri Lanka presenting high background radiation levels. Four different soil samples were characterized using X-ray Absorption Spectroscopy (XAS) at the Th L3-edge (16.3 keV), Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray (EDX) spectroscopy. X-ray Absorption Near Edge Structure (XANES) spectra are applied as a fingerprint indication for Th existing in different chemical environments. Linear combination fitting (LCF) of the Extended X-ray Absorption Fine Structure (EXAFS) data involving reference Th-monazite (phosphate) and thorianite (oxide) compounds suggested that Th is mostly present as Th-phosphate (76 ± 2%) and Th-oxide (24 ± 2%), even though minor amounts of thorite (silicate) were also detected by SEM–EDX. Further studies on selected individual particles using micro-focus X-ray Fluorescence (μ-XRF) and micro-X-ray Absorption Spectroscopy (μ-XAS) along with SEM–EDX elemental mapping provided information about the nature of Th-bearing mineral particles regarding mixed phases. This is the first study providing quantitative and XAS based speciation information on Th-mineral phases in soil samples from Sri Lanka.