bluuebunny/crossref_metadata_2025_split huggingface dataset:
Determination of metal contents in some green leafy vegetables in Marmara region of Turkey
Authors: Zor Medet , Kocaoba Sevgi 
Published: May 2023

AbstractThis study focused on the analysis of mineral and heavy metal contents of spinach, lettuce and parsley samples in different regions to investigate the risks of chronic exposure to heavy metal contamination. After the microwave digestion process, the metal contents of the samples (Na, Mg, Al, P, K, Ca, Fe, Cu, Zn, As, Se, Cd, Sn, Hg, Pb) were determined with the ICP-MS. Two parallel analysis samples were prepared from each sample, analyzed three times, and the mean values of the analyzes performed were reported. From the analysis, the order of finding heavy metals in the samples is Cu > Pb > Cd > As > Sn > Hg. The results were evaluated statistically and Cu, Pb, Cd, As and Sn values were found high in spinach samples (p < 0.05). According to the results of the analysis; the samples with the highest content of Cu, Pb and Cd in spinach samples are samples taken from Tekirdağ (5.1 ± 0.3 mg/kg), Edirne (0.106 ± 0.007 mg/kg) and Tekirdağ (0.080 ± 0.004 mg/kg), respectively. One of the important reasons for this is the increase in industrial areas in those regions. The results were compared with the certified reference materials, the quantities of analytes were determined to be compatible with the certificate values and the results of the analysis were proved to be correct.
Can tooth germ show continuous development after autologous transplantation?
Authors: Al-Khanati Nuraldeen Maher , Beit Zafin Kara 
Published: May 2023

Abstract
Tooth autotransplantation is a tooth replacement treatment modality in which a tooth from an individual is transplanted into another site in the same person. Transplantation of tooth germ with unformed roots or in early stages of root development is seldom practiced even among clinicians who usually practice tooth transplantation. In this paper, we discuss this debatable topic and provide experience-based perspective regarding autologous transplantation of teeth that lack sufficient root length. This paper raises the possibility of performing autotransplantation of donor teeth that were previously considered sub-optimal.
Fluoroscopic-guided retrograde transurethral ureteric stent insertion case series - Technical challenges and solutions
Authors: Courtney M. , Motyer R. , O’Neill H. , O’Mahony J. , McEniff N. , Brennan I. , Guiney M. , Ryan J. M. 
Published: May 2023

Abstract

Introduction
Fluoroscopic-guided retrograde ureteric stent exchange is a commonly performed procedure at our institution for patients with treated gynaecological malignancy. Technical challenges are often met during the procedure. This approach is well-tolerated and does not require general anaesthetic. Routine exchange is required every 16–20 weeks.

Presentation of cases
We describe the technique of fluoroscopic-guided retrograde transurethral ureteric stent exchange and outline potential technical pitfalls through a series of recent cases at our institution. Challenges encountered include stent encrustation, stent malposition, tangled stents and loss of access.

Discussion
The case series demonstrates a variety of solutions to challenging technical situations including manual breakdown of luminal debris, stent repositioning and snaring techniques, and methods for overcoming loss of access. Successful outcomes were achieved in the majority of cases.

Conclusion
Fluoroscopic-guided retrograde ureteric stent exchange is a challenging technique, not universally performed in all interventional departments. The technique is generally well tolerated and avoids the need for general anaesthesia.

Highlights
Insomnia among community members in Florida: Associations with demographics, health conditions, and social support
Authors: Fidler Andrea L. , Chaudhari Piyush , Sims Victoria , Payne-Murphy Jessica , Fischer Jonathan , Cottler Linda B. 
Published: May 2023

Abstract

Objectives:
To identify associations between demographics, social determinants of health, health conditions, and reported history of insomnia. A cross-sectional study including 11,960 adult community members recruited through HealthStreet, a community outreach program at University of Florida.

Methods:
Health assessments were conducted via interviews. Participants reported their demographic background, level of social support, history of health conditions, and insomnia. Logistic regression was used to understand associations between risk factors and history of insomnia.

Results:
The prevalence of self-reported insomnia was 27.3%. Adults aged ≥ 65 years (OR = 1.16) and women (OR = 1.18) reported higher rates of insomnia than their counterparts. Black/African American individuals reported lower rates of insomnia (OR = 0.72) than White individuals. Individuals with food insecurity (OR = 1.53), a military history (OR = 1.30), lower social support (OR = 1.24), living alone (OR = 1.14), anxiety (OR = 2.33), cardiometabolic disease (OR = 1.58), and attention-deficit hyperactivity disorder (ADHD) (OR = 1.44) were significantly more likely to endorse insomnia compared with their counterparts. Depression (OR = 2.57) had the strongest association with insomnia.

Conclusions:
This study provides evidence regarding who is at greater risk for insomnia among a large community-based sample. Our findings highlight the importance of screening for insomnia, particularly among patients who experience food insecurity, are military veterans, have anxiety, depression, ADHD, or cardiometabolic disease, as well as those who live alone or have lower levels of social support. Future public health campaigns should provide education on insomnia symptoms, treatments, and evidenced-based sleep-promotion strategies.
Coronavirus disease 2019 (COVID-19) vaccination rates and staffing shortages among healthcare personnel in nursing homes before, during, and after implementation of mandates for COVID-19 vaccination among 15 US jurisdictions, National Healthcare Safety Network, June 2021–January 2022
Authors: Reses Hannah E. , Soe Minn , Dubendris Heather , Segovia George , Wong Emily , Shafi Shanjeeda , Kalayil Elizabeth J. , Lu Meng , Bagchi Suparna , Edwards Jonathan R. , Benin Andrea L. , Bell Jeneita M. 
Published: May 2023

AbstractObjective:To examine temporal changes in coverage with a complete primary series of coronavirus disease 2019 (COVID-19) vaccination and staffing shortages among healthcare personnel (HCP) working in nursing homes in the United States before, during, and after the implementation of jurisdiction-based COVID-19 vaccination mandates for HCP.Sample and setting:HCP in nursing homes from 15 US jurisdictions.Design:We analyzed weekly COVID-19 vaccination data reported to the Centers for Disease Control and Prevention’s National Healthcare Safety Network from June 7, 2021, through January 2, 2022. We assessed 3 periods (preintervention, intervention, and postintervention) based on the announcement of vaccination mandates for HCP in 15 jurisdictions. We used interrupted time-series models to estimate the weekly percentage change in vaccination with complete primary series and the odds of reporting a staffing shortage for each period.Results:Complete primary series vaccination among HCP increased from 66.7% at baseline to 94.3% at the end of the study period and increased at the fastest rate during the intervention period for 12 of 15 jurisdictions. The odds of reporting a staffing shortage were lowest after the intervention.Conclusions:These findings demonstrate that COVID-19 vaccination mandates may be an effective strategy for improving HCP vaccination coverage in nursing homes without exacerbating staffing shortages. These data suggest that mandates can be considered to improve COVID-19 coverage among HCP in nursing homes to protect both HCP and vulnerable nursing home residents.
Effects of preoperative nutritional status on postoperative quality of recovery: a prospective observational study
Authors: Kinugasa Yuki , Ida Mitsuru , Nakatani Shohei , Uyama Kayo , Kawaguchi Masahiko 
Published: May 2023

AbstractQuality of Recovery-15 (QoR-15) has received attention as a postoperative patient-reported outcome measure. Preoperative nutritional status has negative effects on postoperative outcomes; however, these associations have not yet been investigated. We included inpatients aged ≥ 65 years who underwent elective abdominal cancer surgery under general anaesthesia between 1 June 2021 and 7 April 2022 at our hospital. Preoperative nutritional status was assessed using the Mini Nutritional Assessment Short-Form (MNA-SF), and patients with an MNA-SF score ≤ 11 were categorised into the poor nutritional group. The outcomes in this study were the QoR-15 scores at 2 d, 4 d and 7 d after surgery, which were compared between groups by unpaired t test. Multiple regression analysis was applied to assess the effects of poor preoperative nutritional status on the QoR-15 score on postoperative day 2 (POD 2). Of the 230 included patients, 33·9 % (78/230) were categorised into the poor nutritional status group. The mean QoR-15 value was significantly lower in the poor nutritional group than in the normal nutritional group at all postoperative time points (POD 2:117 v. 99, P = 0·002; POD 4:124 v. 113, P < 0·001; POD 7:133 v. 115, P < 0·001). Multiple analyses showed that poor preoperative nutritional status was associated with the QoR-15 score on POD 2 (adjusted partial regression coefficient, −7·8; 95 % CI −14·9, −0·72). We conclude that patients with a poor preoperative nutritional status were more likely to have a lower QoR-15 score after abdominal cancer surgery.
A simple fruit and vegetable score is a valid tool to assess actual fruit and vegetable intake
Authors: Pastori Giulia , Brouwer Inge D. , Feskens Edith J. M. , Huong Le Thi , Samuel Folake O. , Xuan Le Thi Thanh , Shittu Oluyemisi F. , Eyinla Toluwalope E. , Talsma Elise F. 
Published: May 2023

AbstractWith the recent growing interest in improving fruit and vegetable intake for better health and limited research resources in many settings, simple-to-administer and low-priced indicators are essential tools for monitoring fruit and vegetable intake at the population level. A potential candidate indicator is the fruit and vegetable component of the Global Dietary Recommendation score (FV-GDR) based on data collected using the Diet Quality Questionnaire (DQQ). We investigated the relative validity of FV-GDR collected with the DQQ to measure fruit and vegetable intake by comparison with a 24-h recall (24hR) as a reference collected from 620 Vietnamese and 630 Nigerian adults in 2021. We found proportional differences in the prevalence of intake of vitamin A-rich vegetables, other vegetables and other fruits in Vietnam and all vegetable food groups in Nigeria. In both countries, we found a small difference in the total FV-GDR from DQQ compared with the 24hR, and the percentage of agreement between the two methods was quite high for the majority of the food groups. The FV-GDR calculated from the DQQ correlated with the actual intake, although less strongly than the FV-GDR from 24hR. The DQQ is a promising low-burden, low-cost and simple tool to calculate FV-GDR and to monitor fruit and vegetable consumption at the population level. This provides the possibility of evaluating an important aspect of diet quality in low-resource settings.
Resolving a Paradox: Retail Trades Positively Predict Returns but Are Not Profitable
Authors: Barber Brad M. , Lin Shengle , Odean Terrance 
Published: May 2023

AbstractRetail order imbalance positively predicts returns, but on average retail investor trades lose money. Why? Order imbalance tests equal-weighted stocks, but retail purchases concentrate on attention-grabbing stocks that subsequently underperform. Long–short strategies based on extreme quintiles of retail order imbalance earn dismal annualized returns of −14.8% among stocks with heavy retail trading but earn 6.6% among other stocks. Our results reconcile the literatures on the performance of retail investors, the predictive content of retail order imbalance, and attention-induced trading and returns. Smaller retail trades concentrate more on attention-grabbing stocks and perform worse.
Successful catheter ablation of the accessory pathway in an unusual location in a 13-year-old girl with a coronary sinus diverticulum and Wolff-Parkinson-White syndrome
Authors: Torun Emine Gulsah , Koca Serhat , Dinçel Gökçe Kaya , Çay Serkan 
Published: May 2023

AbstractWolff-Parkinson-White syndrome is a congenital cardiac pre-excitation syndrome that is effectively treated by ablating the accessory pathway. However, accessory pathways located in the posteroseptal region can sometimes be challenging. In this paper, we present the successful ablation of the epicardial posteroseptal accessory pathway through the middle cardiac vein in a 13-year-old girl with a coronary sinus diverticulum and Wolff-Parkinson-White syndrome, after unsuccessful ablation attempts at different locations. If the ablation procedure fails, the possibility of the posteroseptal pathway should be kept in mind, and coronary sinus angiography should be performed. In cases with a coronary sinus diverticulum where ablation is not successful, other coronary sinus structures, for example, the middle cardiac vein should be considered as potential accessory pathways.
A 39 GHz spatial division multiplex MU-MIMO using 256 element hybrid AAS for IAB application
Authors: Kuwabara Toshihide , Tawa Noriaki , Maruta Yasushi , Hori Shinichi , Kaneko Tomoya 
Published: May 2023

AbstractThis paper describes the design and implementation of a 39 GHz 256-element hybrid active phased array antenna system with 16 individual digital transceivers, and its wireless multi-user, multi-input, multi-output verification. An earlier version of this paper was presented at the 2021 51st European Microwave Conference and was published in its Proceedings [1]. Using the prototype device, a single carrier transmission test assuming a mobile backhaul link and a MU-MIMO transmission test using a zero-forced orthogonal multi-beam based on channel reciprocity assuming an access link was performed. As a result, an EIRP of 43 dBm and a data rate of 5.5 Gbps in 1 GHz bandwidth single carrier 128QAM operation and an estimated total throughput of 2.4 Gbps by 3GPP TS38.214 [2] in 100 MHz bandwidth OFDM 8 MU-MIMO operation were achieved, respectively. As far as the author knows, this is the first demonstration for integrated access and backhaul (IAB) application that uses the 39 GHz band.
Miniaturization of folded circular SIW cavity filters
Authors: Sieganschin Anton , Tegowski Bartosz , Koelpin Alexander , Jacob Arne F. 
Published: May 2023

AbstractThis contribution presents miniaturization techniques for folded circular substrate integrated waveguide (FCSIW) cavity filters. The cavities support dual-mode operation. Two of these cavities are combined to form a fourth-order filter. Two filter designs are implemented. The first one serves as a reference and exhibits good manufacturability. For the second one, the cavity is modified, which leads to $50\%$ more compactness. The designs are experimentally verified with 10 GHz bandpass filters. Even though the achieved level of compactness requires higher technological effort, the measurements validate the miniaturization concept. The out-of-band rejection exceeds 40 dB between 11.2 and 30 GHz for the reference filter and between 11.3 and 33 GHz for the miniaturized one. The implemented components are compared with state-of-the-art filters.
Metamaterial lenses for monostatic and bistatic 77 GHz radar systems
Authors: Kohlberger Christoph , Hüttner Richard , Wagner Christoph , Stelzer Andreas 
Published: May 2023

AbstractMetamaterial lenses are appealing thin alternatives to conventional dielectric lenses. In this contribution we describe their design and application in two exemplary 77 GHz automotive radar sensors operating in monostatic and bistatic modes. The frontends are built around commercially available MMICs and small feed antennas are used in coordination with the six-layer printed circuit board-based realizations of metamaterial lenses. The design follows the principles of dielectric lenses, while the required local phase shift is obtained from a set of metasurface bandpasses. Their design uses a novel interpolation procedure to extract layout parameters for a given phase shift. Despite the small structural sizes due to the high frequency, the fabricated frequency-selective surfaces show very good performance in the required frequency range. Verification measurements were conducted on single bandpasses as well as on metamaterial lenses mounted on the radar frontend. The results agree very well with the simulation and confirm the applicability of thin lenses operating at mm-wave frequencies for automotive radar applications.
A planar microwave sensor for noninvasive detection of glucose concentration using regression analysis
Authors: Singh Tilakdhari , Mishra Piyush Kumar , Pal Aditya , Tripathi Vijay Shanker 
Published: May 2023

AbstractThis paper presents a planar microwave sensor for the noninvasive detection of glucose concentration in diabetic patients. The designed sensor operates from the 3.8 to 6.2 GHz frequency band, which covers the 5.8 GHz Industrial Scientific and Medical (ISM) band. The designed sensor shows a percentage bandwidth of 23.8% with a reflection coefficient (S11) of −50 dB at the resonance frequency of 5.7 GHz. The detection was carried out by varying the relative permittivity of the blood in accordance with the glucose concentration based on the Cole–Cole model. The measured result is calculated in terms of varying resonance frequency with variation in the reflection coefficient |S11| of the designed sensor. The observed frequency shift and corresponding sensitivity of the sensor are found at 1.7 GHz and 0.089 MHz/mg dL−1, respectively. An experimental validation has also been performed, and the frequency shift is analyzed by interacting the human thumb with the sensor. The simulated and experimental results of the designed sensor suggest that it can be useful for detecting glucose concentration noninvasively for diabetic patients.
Molecular Transport Conditions Required for the Formation of Penitentes on Airless, Ice‐Covered Worlds, With Specific Application to Europa, Enceladus, and Callisto
Authors: Macias A. , Carreon A. , Berisford D. F. , Nordheim T. A. , Kale G. , Goldstein D. , Varghese P. , Trafton L. , Steckloff J. , Hand K. P. 
Published: May 2023

AbstractThe surface morphology of airless, ice‐covered moons of the outer solar system, such as Europa, Enceladus, and Callisto, is not well known at centimeter‐ to meter‐scales. Ice and snow erode differently on such worlds in part because sublimation is the dominant process. On Earth, ice penitentes have been observed in sublimation‐driven environments, and may provide a guide for similar formations on ice‐covered worlds. Penitentes are blade‐like snow features observed on Earth in high‐altitude, low‐latitude snowfields. Models of penitente formation on Earth break down within the free‐molecular regime of airless bodies, leaving a major gap in understanding whether such morphologies can form on their surfaces. To investigate the morphologic evolution of icy bodies, we developed a Sublimation Monte Carlo (SMC) model that enables a numerical approach to modeling exosphere‐surface interactions at free‐molecular conditions. The SMC model uses Monte Carlo tracking of molecules emitted from the surface to determine the net molecular interchange that drives surface changes. We validated results against experiments, matching the evolution of pre‐formed penitentes as they receded in height and became less pronounced. Our results reveal the importance of molecular redeposition on topology, indicating that the stable morphology of isothermal topographies is a planar morphology on regions of net sublimation, regardless of initial surface shape. A study of parametrically varying temperature profiles for sinusoidal penitentes resulted in the following requirement for penitente growth: the trough temperature must exceed the peak temperature by a threshold value, which notably depends on the surface aspect ratio and peak temperature.
Deciphering the Structural History of Ulysses Fossae, Mars, Using Fault Pattern Analysis
Authors: Shahrzad Stephanie , Bramham Emma K. , Thomas Mark , Piazolo Sandra , Byrne Paul K. , Mortimer Estelle 
Published: May 2023

AbstractUlysses Fossae is a faulted region surrounded by lava flows that sits between the major volcanoes of the Tharsis Rise volcanic province on Mars. This area is unique, as it is the only exposure of extensional faulting which can be related to the Olympus Mons volcano and one of the only a few faulted areas relating to the Tharsis Montes. In order to determine the area's structural evolution through time, we mapped all identifiable faults, divided them into 10 fault groups determined by their orientation and morphology, and performed detailed crater size‐frequency analysis of the geological units. We divide the fault groups into two overall types based on their genesis: local diking and regional extension. The complex structural evolution recorded in the extensional faults in Ulysses Fossae is dominated by local dike‐related activity (8/10 fault groups), along with deformation from large, regional scale extensional processes related to the development of the Tharsis province as a whole (2/10 fault groups). Strain values measured across the 1 fault groups vary between 0.4%–2.2%, with the grabens related to regional extension accommodating larger extensional strains than the local dike‐related grabens. The crater size‐frequency distribution analysis of three distinct areas in Ulysses Fossae (UF Dome, UF North, and UF South) revealed that the majority of the faulting in Ulysses Fossae was active during the Early Amazonian.
A Continental‐Scale Estimate of Soil Organic Carbon Change at NEON Sites and Their Environmental and Edaphic Controls
Authors: Hu Jie , Hartemink Alfred E. , Desai Ankur R. , Townsend Philip A. , Abramoff Rose Z. , Zhu Zhe , Sihi Debjani , Huang Jingyi 
Published: May 2023

AbstractCurrent carbon cycle models focus on the effects of climate and land‐use change on primary productivity and microbial‐mineral dependent carbon turnover in the topsoil, while less attention has been paid to vertical soil processes and soil‐dependent response to land‐use change along the profile. In this study, a spatial‐temporal analysis was used to estimate soil organic carbon (SOC) change in topsoil/A horizon and subsoil/B horizon at National Ecological Observatory Network (NEON) sites, USA over 30 years. To separate the effects of land‐use, environmental, and edaphic factors on SOC change, space‐for‐time substitution was used in combination with the Continuous Change Detection and Classification algorithm and Structural Equation Modeling. Results showed that (a) under natural vegetation, Spodosols and Inceptisols found in the eastern NEON sites had substantial topsoil SOC accumulation (+0.4 to +1.2 Mg C ha−1 year−1), while Inceptisols and Andisols in the west had a comparable magnitude of topsoil SOC loss (−0.5 to −1.8 Mg C ha−1 year−1); (b) Mollisols and Alfisols in the Central Plains sites were susceptible to significant SOC loss under farming and grazing; (c) Runoff/erosion and leaching potential, vertical translocation, and mineral sorption were the most important factors controlling SOC variation across the NEON sites. Our work could be used to parameterize ecosystem models simulating SOC change.