bluuebunny/crossref_metadata_2025_split huggingface dataset:
COVID-19 impact on adults with congenital heart disease self-perceived vulnerability and coping
Authors: Steiner Jill M , Corage Baden Andrea , Abu-Rish Blakeney Erin , Freeman Vea , Stout Karen K , Rosenberg Abby R , Engelberg Ruth A , Curtis J Randall 
Published: June 2022

Abstract
The COVID-19 pandemic poses risk for worsened quality of life in patients with adult congenital heart disease. In a qualitative thematic analysis of semi-structured interviews conducted July 2020 to August 2021, we examined the pandemic’s impact on participants’ (N = 25) experiences with self-perception and coping. All had moderate or complex disease; median age 32 years. The pandemic altered some participants’ self-perception, including increased vulnerability beyond heart-attributed risk. Restrictions frequently prevented participants from using their usual coping strategies, forcing use of alternative methods. For an already at-risk population, these findings suggest the need for increased mental health awareness, assessment, and support.
Can a single-port robot be safely used for robotic total gastrectomy for advanced gastric cancer? First experience using the da Vinci SP platform
Authors: Cui Hao , Cui Jian-Xin , Zhang Ke-Cheng , Liang Wen-Quan , Li Shu-Yan , Huang Jun , Chen Lin , Wei Bo 
Published: June 2022

Abstract

Background
Many studies have shown the operative feasibility and safety of robotic gastrectomy. Surgeons are pursuing single-port (SP) surgery to leverage the advantages of minimally invasive gastrectomy. The purpose of this study was to describe technical considerations and short-term outcomes from the first reported SP robotic total gastrectomy (RTG) using the da Vinci SP platform.

Methods
A 75-year-old patient with a body-mass index of 19.8 kg/m2 and clinical stage III cancer (cT3N+M0) underwent SP RTG on 22 January 2022 at the Department of General Surgery, the Chinese PLA General Hospital. All procedures were performed successfully using the da Vinci SP robotic platform.

Results
The SP RTG was successfully performed with D2 lymphadenectomy including No. 10 lymph-nodes dissection and extracorporeal Roux-en-Y anastomosis. Except for subcutaneous emphysema, no severe adverse events occurred during the operation. According to a visual analogue scale (VAS), the subjective feeling of post-operative pain was given a VAS score of 3 of 10 on Post-Operative Day 1 (POD 1), 1 of 10 on POD 3, and 1 of 10 on POD 7. We removed the gastric tube on POD 2 and advised sipping water, a liquid diet, and a soft diet on PODs 2, 4, and 6, respectively. The patient was discharged without any complications on POD 8.

Conclusion
RTG is technically feasible and safe using the da Vinci SP robotic platform. To our knowledge, this is the first study using the da Vinci SP platform in RTG for advanced gastric cancer in elderly patients. To verify its superior operative outcomes, further clinical trials are needed.
Seismic imaging of crystalline structures: improving energy focusing and signal alignment with azimuthal binning and 2.5-D full-waveform inversion
Authors: Villamizar Brian J G , Pratt R G , Naghizadeh M 
Published: June 2022

SUMMARY
Severely crooked 2-D reflection profiles generate a swath distribution area of common midpoint (CMP) traces. These traces are scattered in all directions and no longer correspond to CMP gathers directly below the acquisition line, effectively posing a pseudo-3-D problem. Standard seismic processing techniques neglect the 3-D character of crooked seismic transects and often yield suboptimal images. The out-of-plane energy ignored in 2-D stacking techniques causes amplitude smearing effects due to anomalous reflection traveltimes. The imaging of dipping structures in geologically complex areas, such as in Larder Lake, are particularly affected because of complex energy scattering. These out-of-plane reflected wavefield components degrade energy focusing and signal alignment, worsening as the obliqueness of the profile with respect to local geology increases. To mitigate the contribution of scattered out-of-plane energy, we implement azimuthal binning. Pseudo-processing lines, parallel to the maximum geological dip, are generated by using locally optimum bin orientations. We use a priori geological information to devise optimum bin orientations in accordance to the local strike. We find that the optimized binning method significantly outperforms the standard approach in terms of in-phase amplitude stacking and reflection continuity. This is because the standard approach is based on a bin geometry always perpendicular to the seismic line traverse, ignoring 3-D effects, whereas in the optimum binning approach each individual bin may have a different orientation along the line. Moreover, we enhance the final reflectivity image by performing seismic migration with a velocity model that incorporates near-surface velocity estimations from full-waveform inversion. We demonstrate that the combination of these two innovations results in a significant impact on the imaging quality of structures at depth. In addition to imaging structures at depth, we also illustrate the significance of their continuation towards the near surface. This is especially important in the Larder Lake area where tectonic activity may have emplaced ore deposits in the first few kilometres of the subsurface.
Diagnosing chronic endometritis: when simplification fails to clarify
Authors: Murtinger Maximilian , Wirleitner Barbara , Spitzer Dietmar , Bralo Helena , Miglar Susanna , Schuff Maximilian 
Published: June 2022

Abstract
Reproductive immunology has grown in importance in recent years and has even developed into a discipline of its own within the field of reproductive medicine. Many aspects of reproductive failure such as repeated implantation failure or recurrent miscarriages are, meanwhile, seen as a consequence of aberrant expression of immunological factors. This is reflected by the increasing number of tests for assessing and quantifying different immune cell types as well as by a wide range of immune therapies offered to a clientele consisting of desperate patients requesting additional ‘IVF tools’: first, what is still usually disregarded is the enormous plasticity and fluctuation of most immune cells in the genital tract; second, their still poorly characterized functions in the endometrial cycle: further, their partially unknown role in embryo implantation and in establishing a pregnancy; and third, the fact that one of the fundamental hypotheses of reproductive immunology—of note—the Medawar concept or ‘Medawar's Paradox’ of semi-allogeneic graft embryo, is partially based on an erroneous assumption, i.e. the immunologic rejection and tolerance of an embryo. In the present opinion article, we comment on the diagnostic procedures and therapy approaches for chronic endometritis within the scope of reproductive medicine.
HIV-Associated Alterations of the Biophysical Features of Maternal Antibodies Correlate With Their Reduced Transfer Across the Placenta
Authors: Taylor Sean A , Sharma Shilpee , Remmel Christopher A L , Holder Beth , Jones Christine E , Marchant Arnaud , Ackerman Margaret E 
Published: June 2022

AbstractBackgroundHuman immunodeficiency virus (HIV) infection during pregnancy is associated with reduced transplacental transfer of maternal antibodies and increased risk of severe infections in children who are exposed and uninfected with HIV. The basis of this reduced transfer of maternal immunity has not yet been defined but could involve modifications in the biophysical features of antibodies. The objective of this study was to assess the impact of maternal HIV infection on the biophysical features of serum IgG and transplacental antibody transfer.MethodsMaternal serum IgG subclass levels, Fc glycosylation, Fc receptor (FcR) binding, and transplacental transfer of pathogen-specific maternal IgG were measured in pregnant women with HIV (WWH) and pregnant women testing negative for HIV (WNH) in Cape Town, South Africa.ResultsMaternal antibody profiles were strikingly different between pregnant WWH and WNH. Antibody binding to FcγR2a and FcγR2b, IgG1 and IgG3 antibodies, and agalactosylated antibodies were all elevated in WWH, whereas digalactosylated and sialylated antibodies were reduced compared to pregnant WNH. Antibody features that were elevated in WWH were also correlated with reduced transplacental transfer of vaccine antigen-specific antibodies.ConclusionsHIV infection is associated with marked alterations of biophysical features of maternal IgG and reduced placental transfer, potentially impairing antimicrobial immunity.
Application of a hand-held laser methane detector for measuring enteric methane emissions from cattle in intensive farming
Authors: Kang Kyewon , Cho Hyunjin , Jeong Sinyong , Jeon Seoyoung , Lee Mingyung , Lee Seul , Baek Yulchang , Oh Joonpyo , Seo Seongwon 
Published: June 2022

Abstract
The hand-held laser methane detector (LMD) technique has been suggested as an alternative method for measuring methane (CH4) emissions from enteric fermentation of ruminants in the field. This study aimed to establish a standard procedure for using LMD to assess CH4 production in cattle and evaluate the efficacy of the protocol to detect differences in CH4 emissions from cattle fed with diets of different forage-to-concentrate (FC) ratios. Experiment 1 was conducted with four Hanwoo steers (584 ± 57.4 kg body weight [BW]) individually housed in metabolic cages. The LMD was installed on a tripod aimed at the animal’s nostril, and the CH4 concentration in the exhaled gas was measured for 6 min every hour for 2 consecutive days. For the data processing, the CH4 concentration peaks were identified by the automatic multi-scale peak detection algorithm. The peaks were then separated into those from respiration and eructation by fitting combinations of two of the four distribution functions (normal, log-normal, gamma, and Weibull) using the mixdist R package. In addition, the most appropriate time and number of consecutive measurements to represent the daily average CH4 concentration were determined. In experiment 2, 30 Hanwoo growing steers (343 ± 24.6 kg BW), blocked by BW, were randomly divided into three groups. Three different diets were provided to each group: high FC ratio (35:65) with low-energy concentrate (HFC-LEC), high FC ratio with high-energy concentrate (HFC-HEC), and low FC ratio (25:75) with high-energy concentrate (LFC-HEC). After 10 d of feeding the diets, the CH4 concentrations for all steers were measured and analyzed in duplicate according to the protocol established in experiment 1. In experiment 1, the mean correlation coefficient between the CH4 concentration from respiration and eructation was highest when a combination of two normal distributions was assumed (r = 0.79). The most appropriate measurement times were as follows: 2 h and 1 h before, and 1 h and 2 h after morning feeding. Compared with LFC-HEC, HFC-LEC showed 49% and 57% higher CH4 concentrations in exhaled gas from respiration and eructation (P &lt; 0.01). In conclusion, the LMD method can be applied to evaluate differences in CH4 emissions in cattle using the protocol established in this study.
Large uterine leiomyoma presenting as pseudo-Meigs’ syndrome with an elevated ca125: a case report and literature review
Authors: Abdelgawad Mohamed , Barghuthi Lutfi , Davis Tyler , Omar Mahmoud , Kamel Omar M , Gibbons Jake , Ragoza Yury , Ismael Hishaam 
Published: June 2022

Abstract
Ascites, pelvic mass and elevated CA-125 in females carry a grim prognosis, likely an ovarian carcinoma. However, more benign etiologies such as Meigs’ and pseudo-Meigs’ syndrome must be considered. Pseudo-Meigs’ syndrome presenting with an elevated CA-125 is rare and presents a diagnostic challenge. Medline and PubMed were queried for pseudo-Meigs’ syndrome cases. We present a 35-year-old female patient who presented with abdominal swelling and weight gain. Imaging demonstrated a 29-cm large intraabdominal mass with significant ascites with elevation of CA-125. Surgical resection was performed, and pathology identified uterine leiomyoma. Twenty-one cases of pseudo-Meigs’ syndrome were identified in the literature. Most patients presented with abdominal distention, and some also reported dyspnea. All patients, including our case, were treated surgically. No recurrence reported among these cases. Surgery is the mainstay for radical treatment in pseudo-Meigs’ syndrome. Resolution of the ascites and hydrothorax occurs following resection of the tumor.
A case of diaphragmatic hemangioma completely resected by partial diaphragmatic resection
Authors: Mori Hiroki , Nose Naohiro , Hamahiro Tomoka , Shimao Yoshiya , Tomita Masaki , Furukawa Koji 
Published: June 2022

AbstractDiaphragmatic hemangiomas are rare tumors and the preferred resection range in surgical procedures is considered on a case-by-case basis. We report a case of diaphragmatic hemangioma that was completely resected by partial diaphragmatic resection. An 81-year-old man was referred for the examination of right diaphragmatic mass. Computed tomography revealed two contrast-enhanced nodules (diameter: 17 and 10 mm, respectively) on the right diaphragm. The nodules were completely resected by partial resection of the diaphragm via video-assisted thoracic surgery using an ultrasonic coagulation and incision device. Resection was performed leaving part of the muscular layer of the diaphragm. Histopathology confirmed the nodule to be hemangioma originating from the diaphragm and no hemangiomatous lesions were noted in the normal connective tissue in the resected stump. Partial diaphragmatic resection is a less invasive treatment method and may be a useful surgical procedure for diaphragmatic hemangioma.
Age determination of galaxy merger remnant stars using asteroseismology
Authors: Borre Camilla C , Aguirre Børsen-Koch Víctor , Helmi Amina , Koppelman Helmer H , Nielsen Martin B , Rørsted Jakob L , Stello Dennis , Stokholm Amalie , Winther Mark L , Davies Guy R , Hon Marc , Kruijssen J M Diederik , Laporte Chervin F P , Reyes Claudia , Yu Jie 
Published: June 2022

ABSTRACT
The Milky Way was shaped by the mergers with several galaxies in the past. We search for remnant stars that were born in these foreign galaxies and assess their ages in an effort to put upper limits on the merger times and thereby better understand the evolutionary history of our Galaxy. Using 5D-phase space information from Gaia eDR3, radial velocities from Gaia DR2 and chemical information from apogee DR16, we kinematically and chemically select 21 red giant stars belonging to former dwarf galaxies that merged with the Milky Way. With added asteroseismology from Kepler and K2 , we determine the ages of the 21 ex situ stars and 49 in situ stars with an average σage/age of ∼31 per cent. We find that all the ex situ stars are consistent with being older than 8 Gyr. While it is not possible to associate all the stars with a specific dwarf galaxy, we classify eight of them as Gaia-Enceladus/Sausage stars, which is one of the most massive mergers in our Galaxy’s history. We determine their mean age to be 9.5 ± 1.3 Gyr consistent with a merger time of 8–10 Gyr ago. The rest of the stars are possibly associated with Kraken, Thamnos, Sequoia, or another extragalactic progenitor. The age determination of ex situ stars paves the way to more accurately pinning down when the merger events occurred and hence provide tight constraints useful for simulating how these events unfolded.
The impact of gas disc flaring on rotation curve decomposition and revisiting baryonic and dark matter relations for nearby galaxies
Authors: Mancera Piña Pavel E , Fraternali Filippo , Oosterloo Tom , Adams Elizabeth A K , Teodoro Enrico di , Bacchini Cecilia , Iorio Giuliano 
Published: June 2022

ABSTRACTGas discs of late-type galaxies are flared, with scale heights increasing with the distance from the galaxy centres and often reaching kpc scales. We study the effects of gas disc flaring on the recovered dark matter halo parameters from rotation curve decomposition. For this, we carefully select a sample of 32 dwarf and spiral galaxies with high-quality neutral gas, molecular gas, and stellar mass profiles, robust H i rotation curves obtained via 3D kinematic modelling, and reliable bulge-disc decomposition. By assuming vertical hydrostatic equilibrium, we derive the scale heights of the atomic and molecular gas discs and fit dark matter haloes to the rotation curves self-consistently. We find that the effect of the gas flaring in the rotation curve decomposition can play an important role only for the smallest, gas-dominated dwarfs, while for most of the galaxies, the effect is minor and can be ignored. We revisit the stellar- and baryon-to-halo mass relations (M*–M200 and Mbar–M200). Both relations increase smoothly up to $M_{200} \approx 10^{12}~\rm { M_\odot }$, with galaxies at this end having high M*/M200 and Mbar/M200 ratios approaching the cosmological baryon fraction. At higher M200, the relations show a larger scatter. Most haloes of our galaxy sample closely follow the concentration–mass (c200–M200) relation resulting from N-body cosmological simulations. Interestingly, the galaxies deviating above and below the relation have the highest and lowest stellar and baryon factions, respectively, which suggests that the departures from the c200–M200 law are regulated by adiabatic contraction and an increasing importance of feedback.
Diagnosing large-scale stellar magnetic fields using PCA on spectropolarimetric data
Authors: Lehmann L T , Donati J-F 
Published: June 2022

ABSTRACT
Insights on stellar surface large-scale magnetic field topologies are usually drawn by applying Zeeman–Doppler Imaging (ZDI) to the observed spectropolarimetric time series. However, ZDI requires experience for reliable results to be reached and is based on a number of prior assumptions that may not be valid, e.g. when the magnetic topology is evolving on time-scales comparable to or shorter than the time span over which observations are collected. In this paper, we present a method based on Principal Component Analysis (PCA) applied to circularly polarized (Stokes V) line profiles of magnetic stars to retrieve the main characteristics of the parent large-scale magnetic topologies, like for instance, the relative strength of the poloidal and toroidal components, and the degree of axisymmetry of the dominant field component and its complexity (dipolar or more complex). We show that this method can also be used to diagnose the temporal variability of the large-scale magnetic field. Performing best for stars with moderate projected equatorial velocities hosting relatively simple magnetic field topologies, this new method is simpler than ZDI, making it convenient to rapidly diagnose the main characteristics of the large-scale fields of non-degenerate stars and to provide insights into the temporal evolution of the field topology.
A general framework to test gravity using galaxy clusters – VI. Realistic galaxy formation simulations to study clusters in modified gravity
Authors: Mitchell Myles A , Arnold Christian , Li Baojiu 
Published: June 2022

ABSTRACT
We present a retuning of the IllustrisTNG baryonic physics model which can be used to run large-box realistic cosmological simulations with a lower resolution. This new model employs a lowered gas density threshold for star formation and reduced energy releases by stellar and black hole feedback. These changes ensure that our simulations can produce sufficient star formation to closely match the observed stellar and gas properties of galaxies and galaxy clusters, despite having ∼160 times lower mass resolution than the simulations used to tune the fiducial IllustrisTNG model. Using the retuned model, we have simulated Hu–Sawicki f(R) gravity within a 301.75 h−1 Mpc box. This is, to date, the largest simulation that incorporates both screened modified gravity and full baryonic physics, offering a large sample (∼500) of galaxy clusters and ∼8000 galaxy groups. We have reanalysed the effects of the f(R) fifth force on the scaling relations between the cluster mass and four observable proxies: the mass-weighted gas temperature, the Compton Y-parameter of the thermal Sunyaev–Zel’dovich effect, the X-ray analogue of the Y-parameter, and the X-ray luminosity. We show that a set of mappings between the f(R) scaling relations and their Lambda cold dark matter counterpart, which have been tested in a previous work using a much smaller cosmological volume, are accurate to within a few per cent for the Y-parameters and $\lesssim 7{{\ \rm per\ cent}}$ for the gas temperature for cluster-sized haloes ($10^{14}\, {\rm M}_{\odot }\lesssim M_{500}\lesssim 10^{15}\, {\rm M}_{\odot }$). These mappings will be important for unbiased constraints of gravity using the data from ongoing and upcoming cluster surveys.
Solar-to-supersolar sodium and oxygen absolute abundances for a ‘hot Saturn’ orbiting a metal-rich star
Authors: Nikolov Nikolay K , Sing David K , Spake Jessica J , Smalley Barry , Goyal Jayesh M , Mikal-Evans Thomas , Wakeford Hannah R , Rustamkulov Zafar , Deming Drake , Fortney Jonathan J , Carter Aarynn , Gibson Neale P , Mayne Nathan J 
Published: June 2022

ABSTRACT
We present new analysis of infrared transmission spectroscopy of the cloud-free hot-Saturn WASP-96b performed with the Hubble and Spitzer Space Telescopes (HST and Spitzer). The WASP-96b spectrum exhibits the absorption feature from water in excellent agreement with synthetic spectra computed assuming a cloud-free atmosphere. The HST-Spitzer spectrum is coupled with Very Large Telescope (VLT) optical transmission spectroscopy which reveals the full pressure-broadened profile of the sodium absorption feature and enables the derivation of absolute abundances. We confirm and correct for a spectral offset of $\Delta R_{{\rm p}}/R_{\ast }=(-4.29^{+0.31}_{-0.37})\, \times 10^{-3}$ of the VLT data relative to the HST-Spitzer spectrum. This offset can be explained by the assumed radius for the common-mode correction of the VLT spectra, which is a well-known feature of ground-based transmission spectroscopy. We find evidence for a lack of chromospheric and photometric activity of the host star which therefore make a negligible contribution to the offset. We measure abundances for Na and O that are consistent with solar to supersolar, with abundances relative to solar values of $21^{+27}_{-14}$ and $7^{+11}_{-4}$, respectively. We complement the transmission spectrum with new thermal emission constraints from Spitzer observations at 3.6 and 4.5 $\mu$m, which are best explained by the spectrum of an atmosphere with a temperature decreasing with altitude. A fit to the spectrum assuming an isothermal blackbody atmosphere constrains the dayside temperature to be Tp = 1545 ± 90 K.