bluuebunny/crossref_metadata_2025 huggingface dataset:
Three-dimensional transition in the wake of two tandem rotating cylinders
Authors: Behara Suresh , Chandra Venu , Prashanth N.R.
Published: November 2022

Three-dimensional (3-D) transition in the wake of two tandem co-rotating cylinders is studied numerically for Reynolds numbers

$180\le Re\le 500$

. Infinite cylinders of equal diameter (

$D$

) and span (

$8D$

) are placed at streamwise gaps

$Lx=2.5D$

and

$7.5D$

, and rotated at rotation rates

$\alpha =0$

,

$0.5$

,

$1$

and

$2$

. For

$\alpha =0$

and

$Lx=7.5D$

, 3-D transition in the wake of the upstream cylinder resembles that for an isolated cylinder with the formation of Mode-A and Mode-B instabilities, whereas for the downstream cylinder, only Mode-A instability occurs in both the

$Lx=2.5D$

and

$7.5D$

cases with

$\alpha =0$

. When the cylinders rotate at

$\alpha =1$

for

$Lx=7.5D$

, staggered transition takes place with the appearance of only Mode-B and only Mode-A instabilities in the near-wake regions of the upstream and downstream bodies, respectively. In the case

$Lx=2.5D$

, the wake of the rotating cylinders transitions via Mode-C and Mode-D instabilities for

$\alpha =0.5$

, Mode-D and Mode-D

$^\prime$

for

$\alpha =1$

, and Mode-C and Mode-A for

$\alpha =2$

. A sudden decrease in near-wake fluctuations, accompanied by a downward jump in the force coefficients, is observed as the 3-D instability shifts from one mode to another, for

$\alpha \ge 1$

and

$Lx=2.5D$

. This discontinuity is caused by the formation of a pair of opposite-signed recirculation zones that mitigate each other's effects in the near-wake region.
Chemical composition and bioactive compounds of Riceberry rice produced under organic and conventional practices
Authors: Kunnam J. , Teamkao P. , Aninbon C.
Published: November 2022

It is often stated that organic rice has a higher content of healthy phytochemicals than ordinary rice, and the facts on this claim obtained experimentally are rare. Riceberry is a new rice variety in Thailand. This study aimed to evaluate the effects of organic practice and conventional practice on the content of chemical composition and bioactive compounds in Riceberry rice. The results showed that agricultural practices were not significantly different for grain yield in the first year, but they were different in the second year. Rice produced by organic practice had a higher content of iron, gamma-aminobutyric acid, total phenolic and anthocyanin (4.15, 1.67, 41.3 and 20.1 mg/100 g dry weight in the first year, and 4.06, 3.37, 89.7 and 14.7 mg/100 g dry weight in the second year) than that produced by conventional practice (2.25, 1.11, 38.8 and 6.89 mg/100 g dry in the first year, and 1.96, 2.77, 54.1 and 5.71 mg/100 g dry in the second year). Rice produced by organic practice also had lower sugar content (2.92 g/100 g dry weight in the first year, and 1.99 g/100 g dry weight in the second year) than that produced by conventional practice (3.46 g/100 g dry weight in the first year, and 2.81 g/100 g dry weight in the second year). Gamma oryzanol and antioxidant capacity were also lower in organic rice compared to conventional rice. This study indicated that organic Riceberry rice had a higher quality compared to non-organic rice.
Comparison of crop yield and solar thermal utilization among different rice–wheat cropping systems
Authors: Xing Z. P. , Huang Z. C. , Yao Y. , Hu Y. J. , Guo B. W. , Zhang H. C.
Published: November 2022

Planting patterns have significant effects on rice growth. Nonetheless, little is known about differences in annual crop yield and resource utilization among mechanized rice planting patterns in a rice–wheat cropping system. Field experiments were conducted from 2014 to 2017 using three treatments: pot seedling transplanting for rice and row sowing for wheat (PST-RS), carpet seedling transplanting for rice and row sowing for wheat (CST-RS) and row sowing for both crops (RS-RS). The results showed that, compared with RS-RS, PST-RS and CST-RS prolonged annual crop growth duration by 25–26 and 13–15 days, increased effective accumulated temperature by 399 and 212°C days and increased cumulative solar radiation by 454 and 228 MJ/m2 because of the earlier sowing of rice by 28 and 16 days in PST-RS and CST-RS, respectively. Compared with RS-RS, the annual crop yield of PST-RS and CST-RS increased by 3.1–3.8 and 2.0–2.6 t/ha, respectively, because of the increase in the number of spikelets/kernels per hectare, aboveground biomass, mean leaf area index and grain–leaf ratio. In addition, temperature production efficiency, solar radiation production efficiency and solar radiation use efficiency were higher in PST-RS, followed by CST-RS and RS-RS. These results suggest that mechanized rice planting patterns such as PST-RS increase annual crop production in rice–wheat cropping systems by increasing yield and solar energy utilization.
Do Directors Respond to Stock Mispricing? Evidence from CEO Turnovers
Authors: Goldman Jim
Published: November 2022

This article examines whether and how stock mispricing can affect the probability of CEO turnover. In a sample of 1,573 US public firms, I find that, after controlling for fundamental performance, a 1-standard-deviation negative uninformative stock price shock increases the likelihood of CEO turnover by 10%. The mispricing-turnover sensitivity is stronger at firms with an independent board, and a difference-in-difference analysis further supports that finding. Ancillary results suggest that independent directors’ career concerns may play a role in the response of independent boards to mispricing.
Using double-observer surveys to monitor urial and ibex populations in the Hindu Kush of Wakhan National Park, Afghanistan
Authors: Moheb Zalmai , Rajabi Ali Madad , Jahed Nasratullah , Ostrowski Stéphane , Zahler Peter I. , Fuller Todd K.
Published: November 2022

We surveyed the urial Ovis vignei and Siberian ibex Capra sibirica in the Hindu Kush mountain range of Wakhan National Park in north-eastern Afghanistan to determine their population status and identify potential drivers of population change. We conducted two double-observer ground surveys, in April–May 2015 and 2018, in 10 areas (total = 288 km2). Urial herds were mostly composed of both sexes (78% of observed herds), the mean adult sex ratio (females:males) was 100:70, and the mean female:juvenile ratio was 100:53. In 2018 we calculated a urial density of 35/100 km2, compared to 72/100 km2 in 2015. Ibex herds were mostly (79%) composed of both sexes, the mean adult sex ratio (females:males) was 100:103, and the mean female:juvenile ratio was 100:58. Ibex density estimates were similar in 2015 and 2018 (c. 250/100 km2). We discuss the usefulness of the double-observer methods for ungulate surveys, highlight the value of viewshed calculations and discuss the possible causes of urial population decline. To ensure the conservation of these ungulate populations, we recommend continued regular monitoring, measures to address poaching and research to clarify the taxonomical status of urials in Wakhan.
Justice and equity for whom? Reframing research on the “bilingual (dis)advantage”
Authors: Luk Gigi
Published: November 2022

The search for the existence and nonexistence of bilingual advantages and disadvantages has become a battleground marked by polarized comments and perspectives, furthering our understanding of neither bilingualism as an experience nor cognition as higher-level mental processes. In this paper, I provide a brief historical overview of research examining the cognitive and linguistic consequences of multilingualism and address the assumptions underlying research exploring the bilingual behavioral difference. I aim to illustrate the sole focus on behavioral (dis)advantage fails to reflect the complexity and dynamicity of people’s bilingual experiences, thereby distracting from understanding bilingualism. Responding to the call of this special issue, I describe the necessity to focus on people when moving toward a just and equitable future for applied psycholinguistic research. Furthermore, I explain why the nuances of bilingualism need to be recognized beyond binary categorization to advance knowledge about bilingualism and its consequences. To avoid unjust misattribution of a behavioral outcome to people’s life experience and to report research findings in a transparent manner, the myopic representation of the terms “bilingual (dis)advantage” should be recognized and reflected on.
Rotorcraft aerial vehicle’s contact-based landing and vision-based localization research
Authors: Meng Xiangdong , Xi Haoyang , Wei Jinghe , He Yuqing , Han Jianda , Song Aiguo
Published: November 2022

A novel concept—the contact-based landing on a mobile platform—is proposed in this paper. An adaptive backstepping controller is designed to deal with the unknown disturbances in the interactive process, and the contact-based landing mission is implemented under the hybrid force/motion control framework. A rotorcraft aerial vehicle system and a ground mobile platform are designed to conduct flight experiments, evaluating the feasibility of the proposed landing scheme and control strategy. To the best of our knowledge, this is the first time a rotorcraft unmanned aerial vehicle has been implemented to conduct a contact-based landing. To improve system autonomy in future applications, vision-based recognition and localization methods are studied, contributing to the detection of a partially occluded cooperative object or at a close range. The proposed recognition algorithms are tested on a ground platform and evaluated in several simulated scenarios, indicating the algorithm’s effectiveness.
Crystal structure of vismodegib, C19H14Cl2N2O3S
Authors: Kaduk James A. , Gates-Rector Stacy , Blanton Thomas N.
Published: November 2022

The crystal structure of vismodegib has been solved and refined using synchrotron X-ray powder diffraction data, and optimized using density functional theory techniques. Vismodegib crystallizes in space group P21/a (#14) with a = 16.92070(20), b = 10.20235(4), c = 12.16161(10) Å, β = 108.6802(3)°, V = 1988.873(9) Å3, and Z = 4. The crystal structure consists of corrugated layers of molecules parallel to the bc-plane. There is only one classical hydrogen bond in the structure, between the amide nitrogen atom and the N atom of the pyridine ring. Pairs of these hydrogen bonds link the molecules into dimers, with a graph set R2,2(14) > a > a. The powder pattern has been submitted to ICDD for inclusion in the Powder Diffraction File™ (PDF®).
Does international law prohibit the facilitation of money laundering?
Authors: Moiseienko Anton
Published: November 2022

There is a broad political consensus that states must not facilitate money laundering, especially as relates to the proceeds of foreign grand corruption. Over the past 30 years, an elaborate regulatory regime has been put in place in most countries to ensure that proceeds of crime are interdicted and confiscated. It rests on the technically non-binding recommendations of the Financial Action Task Force, an influential intergovernmental grouping. Despite this progress and the adoption of international treaties against corruption and organized crime, international law contains no express treaty rule that enjoins states from facilitating money laundering. Furthermore, there are formidable legal and practical obstacles to invoking international legal responsibility of states that do choose to benefit from enabling money laundering. This article explores the disconnect between international law as it stands and the widely accepted political imperative that states must not facilitate money laundering. It argues in favour of recognizing a self-standing customary rule to that effect, and outlines the content and likely impact of such a rule.
Clinical and economic burden of pneumococcal disease among individuals aged 16 years and older in Germany
Authors: Deb Arijita , Podmore Bélène , Barnett Rosemarie , Beier Dominik , Galetzka Wolfgang , Qizilbash Nawab , Haeckl Dennis , Mihm Sarah , Johnson Kelly D. , Weiss Thomas
Published: November 2022

This study assessed the incidence rate of all-cause pneumonia (ACP) and invasive pneumococcal disease (IPD) and associated medical costs among individuals aged ≥16 in the German InGef database from 2016 to 2019. Incidence rate was expressed as the number of episodes per 100 000 person-years (PY). Healthcare resource utilisation was investigated by age group and by risk group (healthy, at-risk, high-risk). Direct medical costs per ACP/IPD episode were estimated as the total costs of all inpatient and outpatient visits. The overall incidence rate of ACP was 1345 (95% CI 1339–1352) and 8.25 (95% CI 7.76–8.77) per 100 000 PY for IPD. For both ACP and IPD, incidence rates increased with age and were higher in the high-risk and at-risk groups, in comparison to the healthy group. ACP inpatient admission rate increased with age but remained steady across age-groups for IPD. The mean direct medical costs per episode were €8075 (95% CI 7121–9028) for IPD and €1454 (95% CI 1426–1482) for ACP. The aggregate direct medical costs for IPD and ACP episodes were estimated to be €8.5 million and €248.9 million respectively. The clinical and economic burden of IPD and ACP among German adults is substantial regardless of age.
Maternal–prenatal stress and depression predict infant temperament during the COVID-19 pandemic
Authors: Buthmann Jessica L. , Miller Jonas G. , Gotlib Ian H.
Published: November 2022

Researchers have begun to examine the psychological toll of the ongoing global COVID-19 pandemic. Data are now emerging indicating that there may be long-term adverse effects of the pandemic on new mothers and on children born during this period. In a longitudinal study of maternal mental health and child emotional development during the pandemic, we conducted online assessments of a cohort of women at two time points: when they were pregnant at the beginning of the surge of the pandemic in the United States (baseline, N = 725), and approximately 1 year postpartum (follow-up, N = 296), examining prenatal and postnatal maternal mental health, prenatal pandemic-related stress, and infant temperament. Pandemic-related stress at baseline was associated with concurrent depressive symptoms and infant negative affect at follow-up. Baseline maternal depressive symptoms were associated with follow-up depressive symptoms, which in turn were also associated with infant negative affect. Pandemic-related stress during pregnancy may have enduring effects on infant temperament. These findings have important implications for our understanding of the emotional development of children who were in utero during the COVID-19 pandemic.
When “Home” Becomes the “Field”: Ethical Considerations in Digital and Remote Fieldwork
Authors: Konken Lauren C. , Howlett Marnie
Published: November 2022

The COVID-19 pandemic has underscored the unpredictability and instability of fieldwork as a method for data collection. As the pandemic prompted unprecedented political dynamism and social and economic disruptions at both domestic and global levels, in-person fieldwork became challenging, if even possible, in the two years following March 2020. While scholars are again using traditional fieldwork methods, we have seen an increased use of digital tools to conduct research remotely since the pandemic due to international travel bans and social distancing measures. Although not yet widely discussed, these new approaches pose new ethical questions as understandings of both our “fields” and “homes” evolve. In this paper, we stress the need for scholars to reconsider how we conceive of our ethical obligations in situations wherein we have conducted research without ever physically accessing our field sites or interacting in person with our participants. We particularly urge researchers to re-evaluate their ethical responsibilities around transparency and replicability in the dissemination and publication of findings when engaging in fieldwork “from home.” These considerations were necessary prior to 2020 but are especially relevant within the context of the pandemic as scholars enter new field sites remotely or return to those previously visited in person. As a result, this paper starts a critical conversation about ethical practices in remote and digital fieldwork, which will continue to prove significant as digital and remote methods are used for data collection in a post-pandemic world.
The application of imagery rescripting to intrusive autobiographical memories in depression
Authors: Stavropoulos Adele , Brockman Robert , Berle David
Published: November 2022

Intrusive autobiographical memories are a prominent feature of depression implicated in the onset and course of the disorder. Current cognitive behavioural treatment of depression does not specify techniques to address intrusive memories. Imagery rescripting has been demonstrated to be effective in the treatment of trauma-related intrusive memories. This paper illustrates the application of imagery rescripting as a stand-alone treatment for two patients experiencing a current major depressive episode. The two cases are described in detail and follow-up data are reported. Both patients experienced clinically significant and reliable change in their depression scores and no longer met criteria for a current major depressive episode at post-assessment, with gains maintained at 3-month follow-up. Implications are discussed for the theoretical mechanisms of change of this intervention as well as methods to overcome common treatment obstacles that arise in depression.

Key learning aims

(1)

To learn how intrusive autobiographical memories are implicated in the onset and maintenance of depression.

(2)

To learn the limitations that may present clinically when applying verbal-linguistic techniques such as cognitive restructuring to intrusive memories.

(3)

To learn when imagery rescripting may be required to treat intrusive memories and how to implement this technique to overcome traditional treatment obstacles in depression.
Active 5G radio resource management measurements using a multiple CATR reflector system
Authors: Rowell Corbett , Cardalda Garcia Adrian , Derat Benoit
Published: November 2022

This paper presents results for active and passive measurements using a novel method based on multiple compact antenna test range (CATR) reflectors to perform simultaneous multiple angle measurements in order to characterize the beam-forming characteristics in a real environment of the 5G devices operating in the millimeter wave frequency band: 24–44 GHz. The over-the-air (OTA) system generates four planar wavefronts with different incidence angles, realizing up to five pairs of angular spreads or four switched/simultaneous angles of arrival. The initial target application is radio resource management (RRM) testing, where the execution of mobility procedures and radio link monitoring of a 5G millimeter wave device are evaluated. The applicability of the multi-reflector approach to RRM testing is measured with commercial 5G handsets, through three test scenarios. The paper demonstrates that baseband (non OTA) testing is not sufficient for RRM FR2, as the results are influenced by the direction of arrival of the signal. It is further shown that OTA testing in a multi-reflector CATR system and a careful selection of a representative set of test directions is critical for full characterization of the performance of a wireless device operating in the millimeter wave bands.
Livestock Support and Water Depletion in Turkey
Authors: Schuenemann Franziska , Hess Sebastian
Published: November 2022

Turkey serves as an important food hub for neighboring countries in the water‐scarce Middle East and North African region, and self‐sufficiency in agri‐food production is one of the country's major policy objectives. The Turkish government had therefore introduced various support measures for its inefficient livestock sector, including payments for irrigated fodder crops, which are likely to increase water depletion. To simultaneously assess the economic and environmental effects of these policies, we link an economy‐wide computable general equilibrium model of Turkey to a newly developed water footprint module. We find that removal of direct livestock support may not lead to large water savings, but may instead redirect irrigation water to higher value crops. Conversely, removal of fodder subsidies and overall efficiency improvements in livestock can lead to overall water savings and net economic gains.
A Model Sensitivity Study of Ocean Surface Wave Modulation Induced by Internal Waves
Authors: Wu Jie , Ortiz‐Suslow David G. , Hao Xuanting , Wang Qing , Shen Lian
Published: November 2022

Nonlinear internal waves are an upper ocean phenomenon that drives horizontal surface current gradients, which in turn modulate ocean surface waves. Under certain conditions, this wave‐current interaction creates ocean surface roughness heterogeneity, in the form of alternating rough/smooth bands. In this study, we investigate the sensitivity of the modulation effect to internal wave properties and develop sea states using simulations of individual internal wave solitons. We utilize a phased‐resolved two‐layer fluid model to capture the evolution of surface waves deterministically. We conduct extensive simulations with a wide range of parameters, including fluid layer density ratio, internal wave amplitude, and parametric wind speed. We use the ratio of the mean surface slope between the rough and smooth bands, which are identified in the simulated surface wave field, to systematically investigate their response to the internal wave forcing across all our simulation cases. Our results show that, among the internal wave parameters, the upper‐lower layer density ratio causes the strongest surface heterogeneity. Spectral analysis of the surface wave elevation and slope variance reveals that the wavenumbers above the peak are most impacted. We demonstrate that accounting for the internal wave‐induced modulation requires including wave steepness statistics, for example, when modeling air‐sea exchange using a surface roughness, z0, parameter. Currently, these statistics are not included in typically coupled modeling schemes, and these systems cannot account for the impact of internal waves, even if the solitary wave phenomena are resolved.
Synoptic Climatology of Subtropical Cyclone Impacts on Near‐Surface Winds Over the South Atlantic Basin
Authors: Cardoso Andressa A. , da Rocha Rosmeri P. , Crespo Natália M.
Published: November 2022

Winds and precipitation are two meteorological variables of great impact on the economy and society, especially when extreme events occur. The objective of this study is to investigate the subtropical cyclone (SC) impacts on near‐surface wind extremes (defined by 95th percentile) and precipitation in the South Atlantic basin. For the period 1979–2015, the analysis used two reanalysis data (ERA5 and Climate Forecast System Reanalysis [CFSR]) and estimated precipitation from the Tropical Rainfall Measuring Mission (TRMM) considering the extended warm (from September to February) and cold (from March to August) seasons. A total of 169 SCs occurred in the warm season against 87 in the cold one. Two approaches are used to quantify SC impacts: Lagrangian, where the composites follow the cyclone center, and Eulerian, which considers the averaged environment during the cyclone lifecycle. In general, both approaches indicate SC contribution to the positive anomalies of mean and extreme near‐surface wind speeds to the east and northeast of a cyclogenetic region in southeastern Brazil (RG1). For all analyses conducted, wind speeds from CFSR are higher than in ERA5. The SC activity contributes to the enhancement of precipitation to the east and inside RG1 in an organized northwest‐southeast positive anomaly band from the continent to the ocean, while favoring drier conditions to the south. These positive precipitation anomalies are associated with an anomalous low pressure, low‐level moisture flux convergence and warm advection occurring at the same time with an upper‐level divergent flow near RG1. All these features are intensified in the cold season.
New Inferences on Magma Dynamics in Melilitite‐Carbonatite Volcanoes: The Case Study of Mt. Vulture (Southern Italy)
Authors: Carnevale G. , Caracausi A. , Rotolo S. G. , Paternoster M. , Zanon V.
Published: November 2022

This study provides the first micro‐thermometric data of fluid inclusions (FIs) in mafic loose (disaggregated) xenocrysts and ultramafic xenoliths in explosive products of the melilitite‐carbonatite Mt. Vulture volcano (southern Italy). Pure CO2 late stage FIs hosted in rock‐forming minerals of wehrlite xenoliths and clinopyroxene xenocrysts were trapped at the local crust‐mantle boundary (32 km). In contrast, trapping pressures within the loose olivine xenocrysts are from 3.2 to 4.5 kbar (8–13 km). Considering the ongoing degassing of mantle‐derived CO2 rich gases, together with seismic evidences of the presence of low amount of melts at depth, and the tectonic control of the past volcanic activity, our study opens new perspective about the hazardous nature of the “quiescent” melilitite‐carbonatite volcanoes.
Depth‐Dependent Crustal Stress Rotation and Strength Variation in the Charlevoix Seismic Zone (CSZ), Québec, Canada
Authors: Verdecchia A. , Onwuemeka J. , Liu Y. , Harrington R. M.
Published: November 2022

Intraplate tectonic stress fields are complex due to the imprint of a long geological history. Here we use a new data set of earthquake focal mechanism solutions and relocated events to investigate the relationship between regional stress, crustal strength, and seismicity in the Charlevoix Seismic Zone (CSZ), the most active seismic zone in eastern Canada. Our stress inversion shows that SHmax gradually rotates clockwise from approximately St. Lawrence River‐parallel (∼54°) near the surface to river‐perpendicular (∼120°) in the lower crust, as postglacial rebound stress becomes increasingly dominant at greater depth. The stress rotation occurs primarily between ∼13 and ∼26 km depth, where glacial rebound induced stress perturbation is further amplified by a “weaker” middle crust. Finally, depth‐dependent b‐values confirm the rheological difference between upper and middle crust in the CSZ.
Derived Depths in Opaque Waters Using ICESat‐2 Photon‐Counting Lidar
Authors: Yang Jian , Ma Yue , Zheng Huiying , Xu Nan , Zhu Kai , Wang Xiao Hua , Li Song
Published: November 2022

Since turbid waters make it extremely difficult for light to penetrate the water column due to attenuation, performing satellite‐derived bathymetry using spectral images and/or photon‐counting lidars is a very challenging problem in turbid waters. The photon‐counting lidar borne on Ice, Cloud, and Land Elevation Satellite‐2 (ICESat‐2) can obtain high‐resolution and accurate height estimations of sea surfaces, that do not depend on the water clarity. Using the ocean surface waves calculated from ICESat‐2 and classical wave theory that models the relationship between the water depth and wavelength, we propose a method to estimate the depths in opaque waters. The performance is validated in different water qualities with a mean absolute percent error of 9%∼22%. The basic theory of estimating water depths in this study is entirely different from that of conventional laser bathymetry, and this method has the potential to fill the gap of space‐based bathymetric data sets in turbid waters.
Brine Volume Fraction as a Habitability Metric for Europa's Ice Shell
Authors: Wolfenbarger N. S. , Fox‐Powell M. G. , Buffo J. J. , Soderlund K. M. , Blankenship D. D.
Published: November 2022

Brine systems in Europa's ice shell have been hypothesized as potential habitats that could be more accessible than the sub‐ice ocean. We model the distribution of sub‐millimeter‐scale brine pockets in Europa's ice shell. Through examination of three habitability metrics (water activity, ionic strength, and salinity), we determine that brine pockets are likely not geochemically prohibitive to life as we know it for the chloride and sulfate‐dominated ocean compositions considered here. Brine volume fraction is introduced as a novel habitability metric to serve as a proxy for nutrient transport and recycling—because of its role in governing permeability—and used to define regions where nutrient‐open, nutrient‐closed, and relict habitats are stable. Whereas nutrient‐closed habitats could exist wherever brine is stable, nutrient‐open habitats are confined to meter‐scale regions near the ice‐ocean interface where freezing is occurring. This classification scheme can help guide future life‐detection missions to ocean worlds.
Airborne Observations of Shoaling and Breaking Internal Waves
Authors: Vrećica Teodor , Pizzo Nick , Lenain Luc
Published: November 2022

Internal waves (IW) are crucial contributors to the transport of sediment, heat, and nutrients in coastal areas. While IW have been extensively studied using point measurements, their spatial variability is less well understood. In this paper we present a unique set of high‐resolution infrared imagery collected from a helicopter, hovering over very energetic shoaling and breaking IW. We compute surface velocities by tracking the evolution of thermal structures at the ocean surface and find horizontal velocity gradients with magnitudes that are more than 100 times the Coriolis frequency. Under the assumption of no vertical shear we determine vertical velocities from the obtained horizontal divergence estimates and identify areas of the wave undergoing breaking. The spatial variability of the internal wave occurs on scales from a few to a few hundred meters. These results highlight the need to collect spatio‐temporal observations of the evolution of IW in coastal areas.
Stratospheric Circulation Changes Associated With the Hunga Tonga‐Hunga Ha'apai Eruption
Authors: Coy L. , Newman P. A. , Wargan K. , Partyka G. , Strahan S. E. , Pawson S.
Published: November 2022

The 15 January 2022 eruption of the Hunga Tonga‐Hunga Ha'apai underwater volcano (20.5°S, 175.4°W) injected a record amount of water directly into the stratosphere. This study attempts to quantify this impact on the temperature, as well as the subsequent changes to the stratospheric circulation, during the months following the eruption based on reanalysis fields. The extreme nature of the temperature, wind, and circulation changes are tracked through comparisons of the first six months of 2022 with the previous 42 years. Examination of the data assimilation process shows that at 20 hPa the thermal observations are forcing significant cooling, compensating for the absence of the excess stratospheric moisture in the model used for the reanalysis. In response to this cooling the atmosphere adjusts by creating strong westerly winds above the temperature anomaly and large changes to the downward and poleward mean meridional circulation.
Understanding Evaporation Duct Variabilities on Turbulent Eddy Scales
Authors: Franklin K. B. , Wang Q. , Jiang Q. , Shen L.
Published: November 2022

Evaporative Ducts (ED) are common refractive features that exist due to the persistent/strong vertical moisture gradient inherent to the lowest 10s of meters of the marine atmospheric surface layer (MASL). The ED plays a large role in the propagation of signals from the surface‐ or ship‐based radar/communications systems due to the ducting of electromagnetic (EM) waves. Previous studies have characterized ED structure using mesoscale and surface layer models which are based on the Monin‐Obukhov similarity theory. As a result, only the spatially/temporally averaged mean ED structure has been examined. Conversely, this study focuses on ED variability occurring over turbulent energy‐containing eddy scales by utilizing large‐eddy simulations (LES) of the MASL. This innovative approach reveals that the LES‐resolved refractivity perturbations are directly linked to MASL large eddy dynamic and thermodynamic processes. In the thermally unstable MASL, significant turbulent ED variability is noted, with regions of increased ED heights associated with convective updrafts and positive moisture perturbations. In contrast, the thermally stable MASL is shown to exhibit significantly less ED variability over the LES domain. Since current surface layer models have difficulties in calculating ED properties in the thermally stable MASL, utilization of LES is helpful to gain an understanding of the ED in these conditions. A conceptual model of turbulent ED variation is proposed to describe the relationship between MASL dynamics/thermodynamic processes, state variable perturbations, and refractive variations.
Evaluation of Nominal Energy Storage at Existing Hydropower Reservoirs in the US
Authors: Hansen Carly , Ghimire Ganesh R. , Kao Shih‐Chieh
Published: November 2022

Long‐term planning and operation of hydropower reservoirs require an understanding of both water and energy storage. As energy storage needs of the evolving grid increase, we must account for the water and energy storage potential of these reservoirs. Given the limitations of current data on existing hydropower, we compile statistics related to storage volume and hydraulic head from publicly available data sets and examine differences in descriptions of US hydropower storage. Assembled characteristics are used to calculate nominal energy storage capacity, a simple measure of potential to generate power from a given volume of water, not factoring in detailed constraints. Inventory‐based estimates of energy storage are calculated at 2,075 dams, which helps put the potential for US hydropower to support energy storage in context with similar evaluations in other regions and with other energy storage technologies. The national energy storage capacity ranges between 34.5 and 45.1 TWh depending on the information used, with 52% of energy storage located at the 10 largest reservoirs in the US. Energy storage capacities are also calculated at 236 dams with historical volume and elevation data. Finally, reservoir inflows provide context for the storage volumes and sensitivities to hydrologic variability. Larger reservoirs with greater storage volume to inflow ratios are concentrated in the Western US, but the majority of hydropower reservoirs store less than the annual inflow. We address several infrastructure and water resource informatics challenges and highlight remaining issues, including representing seasonal or shorter variability in water volumes and representing connected hydropower facilities.
Response of Erosive Precipitation to Vegetation Restoration and Its Effect on Soil and Water Conservation Over China's Loess Plateau
Authors: Zhang Baoqing , Tian Lei , He Chansheng , He Xiaogang
Published: November 2022

Large‐scale vegetation restoration profoundly affects ecohydrological and hydrometeorological processes with consequent effects on soil and water conservation. However, it is still unclear how revegetation affects the joint relationship between streamflow and sediment yield from the land‐atmosphere interactions perspective. In this study, we combine in situ hydro‐meteorological observations, satellite observed land surface characteristics, and coupled land‐atmosphere model simulations to address this knowledge gap through a case study focusing on the Loess Plateau, where a megaproject of revegetation has been implemented since 2000. We find that historical annual streamflow and sediment yield have decreased over the Loess Plateau and 12 main revegetated basins, mainly due to enhanced canopy transpiration and soil conservation functions of revegetation. However, the magnitude of sediment yield reduction is much higher than that of streamflow for both mainstream and tributaries of the Yellow River. Specifically, the mean decreasing rate of sediment yield is 2.91 times of streamflow in the mainstream Yellow River, while for tributaries, the mean decline rate of sediment yield is 1.71 times of streamflow. Despite increases in total precipitation amount, erosive precipitation exhibits a clear downward trend over the Loess Plateau after the large‐scale revegetation (2000–2015). This is mainly driven by enhanced local moisture recycling caused by revegetation‐induced redistribution of water and energy budgets. Decreases in erosive precipitation frequency coupled with increased precipitation amount enhance streamflow availability and simultaneously mitigate soil erosion. Our findings highlight the importance of factoring in the two‐way feedbacks between revegetation and erosive precipitation when planning soil and water conservation.
Proxy methods for detection of inhalation exposure in simulated office environments
Authors: Yun Seoyeon , Zhong Sailin , Alavi Hamed S. , Alahi Alexandre , Licina Dusan
Published: November 2022

Background

Modern health concerns related to air pollutant exposure in buildings have been exacerbated owing to several factors. Methods for assessing inhalation exposures indoors have been restricted to stationary air pollution measurements, typically assuming steady-state conditions.

Objective

We aimed to examine the feasibility of several proxy methods for estimating inhalation exposure to CO2, PM2.5, and PM10 in simulated office environments.

Methods

In a controlled climate chamber mimicking four different office setups, human participants performed a set of scripted sitting and standing office activities. Three proxy sensing techniques were examined: stationary indoor air quality (IAQ) monitoring, individual monitoring of physiological status by wearable wristband, human presence detection by Passive Infrared (PIR) sensors. A ground-truth of occupancy was obtained from video recordings of network cameras. The results were compared with the concurrent IAQ measurements in the breathing zone of a reference participant by means of multiple linear regression (MLR) analysis with a combination of different input parameters.

Results

Segregating data onto sitting and standing activities could lead to improved accuracy of exposure estimation model for CO2 and PM by 9–60% during sitting activities, relative to combined activities. Stationary PM2.5 and PM10 monitors positioned at the ceiling-mounted ventilation exhaust in vicinity of the seated reference participant accurately estimated inhalation exposure (adjusted R² = 0.91 and R² = 0.87). Measurement at the front edge of the desk near abdomen showed a moderate accuracy (adjusted R² = 0.58) in estimating exposure to CO2. Combining different sensing techniques improved the CO2 exposure detection by twofold, whereas the improvement for PM exposure detection was small (~10%).

Significance

This study contributes to broadening the knowledge of proxy methods for personal exposure estimation under dynamic occupancy profiles. The study recommendations on optimal monitor combination and placement could help stakeholders better understand spatial air pollutant gradients indoors which can ultimately improve control of IAQ.
LncRNA SFTA1P promotes cervical cancer progression by interaction with PTBP1 to facilitate TPM4 mRNA degradation
Authors: Luo Aoran , Lan Xiaoxiao , Qiu Qiongzi , Zhou Qing , Li Jia , Wu Mengting , Liu Pengyuan , Zhang Honghe , Lu Bingjian , Lu Yan , Lu Weiguo
Published: November 2022

Long non-coding RNAs (lncRNAs) play key roles in cancer development and progression. However, the biological function and clinical significance of most lncRNAs in cervical cancer remain elusive. In this study, we explore the function and mechanism of lncRNA surfactant associated 1 (SFTA1P) in cervical cancer. We firstly identified SFTA1P by analyzing the RNA sequencing data of cervical cancer from our previous study and from The Cancer Genome Atlas (TCGA). We then verified SFTA1P expression by qRT-PCR. The cell proliferation and migration capacity of SFTA1P was assessed by using CCK-8, colony formation, transwell and wound healing assays. RNA pull-down, RNA immunoprecipitation (RIP), RNA stability and western blot assays were used to reveal potential mechanisms. Athymic nude mice were used to evaluate tumorigenicity and metastasis in vivo. SFTA1P is upregulated in cervical tumor tissues and its high expression is associated with poor prognosis. Biologically, knockdown of SFTA1P inhibited the proliferation, migration, and invasion of cervical cancer cells in vitro, as well as tumorigenesis and metastasis in vivo. Mechanistically, SFTA1P was shown to interact with polypyrimidine tract binding protein 1 (PTBP1) to regulate the stability of tropomyosin 4 (TPM4) mRNA, thereby resulting in malignant cell phenotypes. TPM4 knockdown could attenuate the suppression of cell progression induced by either SFTA1P or PTBP1 knockdown. Our findings demonstrate that SFTA1P can promote tumor progression by mediating the degradation of TPM4 mRNA through its interaction with PTBP1 protein. This provides a potential therapeutic strategy to target the SFTA1P-PTBP1-TPM4 axis in cervical cancer.
Unlocking the human inner ear for therapeutic intervention
Authors: Li Hao , Agrawal Sumit , Rohani Seyed Alireza , Zhu Ning , Cacciabue Daniela I. , Rivolta Marcelo N. , Hartley Douglas E. H. , Jiang Dan , Ladak Hanif M. , O’Donoghue Gerard M. , Rask-Andersen Helge
Published: November 2022

The human inner ear contains minute three-dimensional neurosensory structures that are deeply embedded within the skull base, rendering them relatively inaccessible to regenerative therapies for hearing loss. Here we provide a detailed characterisation of the functional architecture of the space that hosts the cell bodies of the auditory nerve to make them safely accessible for the first time for therapeutic intervention. We used synchrotron phase-contrast imaging which offers the required microscopic soft-tissue contrast definition while simultaneously displaying precise bony anatomic detail. Using volume-rendering software we constructed highly accurate 3-dimensional representations of the inner ear. The cell bodies are arranged in a bony helical canal that spirals from the base of the cochlea to its apex; the canal volume is 1.6 μL but with a diffusion potential of 15 μL. Modelling data from 10 temporal bones enabled definition of a safe trajectory for therapeutic access while preserving the cochlea’s internal architecture. We validated the approach through surgical simulation, anatomical dissection and micro-radiographic analysis. These findings will facilitate future clinical trials of novel therapeutic interventions to restore hearing.
Additive manufacturing of LiNi1/3Mn1/3Co1/3O2 battery electrode material via vat photopolymerization precursor approach
Authors: Martinez Ana C. , Maurel Alexis , Aranzola Ana P. , Grugeon Sylvie , Panier Stéphane , Dupont Loic , Hernandez-Viezcas Jose A. , Mummareddy Bhargavi , Armstrong Beth L. , Cortes Pedro , Sreenivasan Sreeprasad T. , MacDonald Eric
Published: November 2022

Additive manufacturing, also called 3D printing, has the potential to enable the development of flexible, wearable and customizable batteries of any shape, maximizing energy storage while also reducing dead-weight and volume. In this work, for the first time, three-dimensional complex electrode structures of high-energy density LiNi1/3Mn1/3Co1/3O2(NMC 111) material are developed by means of a vat photopolymerization (VPP) process combined with an innovative precursor approach. This innovative approach involves the solubilization of metal precursor salts into a UV-photopolymerizable resin, so that detrimental light scattering and increased viscosity are minimized, followed by the in-situ synthesis of NMC 111 during thermal post-processing of the printed item. The absence of solid particles within the initial resin allows the production of smaller printed features that are crucial for 3D battery design. The formulation of the UV-photopolymerizable composite resin and 3D printing of complex structures, followed by an optimization of the thermal post-processing yielding NMC 111 is thoroughly described in this study. Based on these results, this work addresses one of the key aspects for 3D printed batteries via a precursor approach: the need for a compromise between electrochemical and mechanical performance in order to obtain fully functional 3D printed electrodes. In addition, it discusses the gaps that limit the multi-material 3D printing of batteries via the VPP process.
Impact of a single water molecule on the atmospheric oxidation of thiophene by hydroperoxyl radical
Authors: Douroudgari Hamed , Sharifi Maryam Seyed , Vahedpour Morteza
Published: November 2022

Water as an important assistant can alter the reactivity of atmospheric species. This project is designed to investigate the impact of a single water molecule on the atmospheric reactions of aromatic compounds that have not been attended to comprehensively. In the first part, the atmospheric oxidation mechanisms of thiophene initiated by hydroperoxyl radical through a multiwell-multichannel potential energy surface were studied to have useful information about the chemistry of the considered reaction. It was verified that for the thiophene plus HO2 reaction, the addition mechanism is dominant the same as other aromatic compounds. Due to the importance of the subject and the presence of water molecules in the atmosphere with a high concentration that we know as relative humidity, and also the lack of insight into the influence of water on the reactions of aromatic compounds with active atmospheric species, herein, the effect of a single water molecule on the addition pathways of the title reaction is evaluated. In another word, this research explores how water can change the occurrence of reactions of aromatic compounds in the atmosphere. For this, the presence of one water molecule is simulated by higher-level calculations (BD(T) method) through the main interactions with the stationary points of the most probable pathways. The results show that the mechanism of the reaction with water is more complicated than the bare reaction due to the formation of the ring-like structures. Also, water molecule decreases the relative energies of all addition pathways. Moreover, atoms in molecule theory (AIM) along with the kinetic study by the transition state (TST) and the Rice–Ramsperger–Kassel–Marcus (RRKM) theories demonstrate that the overall interactions of a path determine how the rate of that path changes. In this regard, our results establish that the interactions of water with HO2 (thiophene) in the initial complex 1WHA (1WTA or 1WTB) are stronger (weaker) than the sum of its interactions in transition states. Also, for the water-assisted pathways, the ratio of the partition function of the transition state to the partition functions of the reactants is similar to the respective bare reaction. Therefore, the reaction rates of the bare pathways are more than the water-assisted paths that include the 1WHA complex and are less than the paths that involve the 1WTA and 1WTB complexes.
Contrastive language and vision learning of general fashion concepts
Authors: Chia Patrick John , Attanasio Giuseppe , Bianchi Federico , Terragni Silvia , Magalhães Ana Rita , Goncalves Diogo , Greco Ciro , Tagliabue Jacopo
Published: November 2022

The steady rise of online shopping goes hand in hand with the development of increasingly complex ML and NLP models. While most use cases are cast as specialized supervised learning problems, we argue that practitioners would greatly benefit from general and transferable representations of products. Inthiswork, we build on recent developments in contrastive learning to trainFashionCLIP, aCLIP-like model adapted for the fashion industry. We demonstrate the effectiveness of the representations learned byFashionCLIPwith extensive tests across a variety of tasks, datasets and generalization probes. We argue that adaptations of large pre-trained models such as CLIP offer new perspectives in terms of scalability and sustainability for certain types of players in the industry. Finally, we detail the costs and environmental impact of training, and release the model weights and code as open source contribution to the community.