bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of canola oil supplementation level on total tract digestion, ruminal fermentation, and methane emissions of cows grazing Urochloa sp. supplemented with a fixed amount of concentrate
Authors: Avilés-Nieto Jonathan Noe , Márquez-Mota Claudia Cecilia , Hernández-Medrano Juan Hebert , Ramírez-Bribiesca Jacinto Efrén , Castillo-Gallegos Epigmenio , Plascencia Alejandro , Castrejón-Pineda Francisco Alejandro , Corona Luis 
Published: February 2023

AbstractFour rumen-cannulated cows (Bos taurus × Bos indicus, 657 ± 92 kg body weight, BW) in a rotational grazing (Urochloa sp.) system were assigned to different canola oil (CO) inclusion levels, 0.0, 0.40, 0.80, and 1.2 g/kg according to shrunk body weight (SBW, BW adjusted for gastrointestinal filling) in a 4 × 4 Latin Square design to evaluate CO on the CH4 emissions and dietary energy intake. CH4 emissions were estimated using an infrared analyzer methodology (Sniffer method). Grass intake and fecal production were estimated using Cr2O3 as an external marker. CO supplementation increased (linear effect, P ≤ 0.05) total dry matter and gross energy intake with a linear increase (P = 0.09) in neutral detergent fiber (NDF) intake. While digestible energy (Mcal/kg) linearly increased with increasing CO supplementation level (linear effect, P < 0.05), total tract digestion of organic matter, NDF, and CP was comparable (P > 0.05) between levels. Maximal CO supplementation (1.2 g/kg SBW) significantly decreased total ruminal protozoa population, acetate:propionate ratio, and enteric methane production (g/kg DMI) by 9, 5.3, and 17.5%, respectively. This study showed that, for cows grazing tropical forages, CO can be supplemented up to 1.2 g/kg SBW (5.8% of the total diet) without negatively affecting intake and nutrient digestion while reducing ruminal fermentation efficiency and enteric methane emission (≤ 17.5%).
Serum irisin levels and osteoporosis in patients with advanced chronic kidney disease and renal transplant recipients
Authors: Demir Canan , Dursun Ali Doğan , Sarıyıldız Gülçin Türkmen , Arslan Aykut İlker 
Published: February 2023

Abstract
Aim
To elucidate the association of serum irisin levels with bone mineral density (BMD) and calcium–phosphorus metabolism parameters in chronic kidney disease (CKD) patients and renal transplant recipients (RTRs).

Methods
This is a cross-sectional study involving CKD patients and RTRs. Healthy volunteers served as controls. Age, gender, and dialysis vintage were recorded. Serum irisin, creatinine, glucose, calcium, albumin, 25(OH) vitamin D, ferritin, C-reactive protein, A1C, and lipid profile were studied in all participants. Estimated glomerular filtration rate (eGFR), corrected calcium, and body mass index (BMI) were calculated.

Results
Overall, 49 patients (23 hemodialysis, 26 RTRs) and 25 control subjects were included. In hemodialysis (HD) group, 8 patients (34.8%) had osteoporosis, and 12 patients (52.2%) had osteopenia. In RTR group, 3 patients (11.5%) had osteoporosis, while 15 patients (57.7%) had osteopenia. Among controls, one had osteoporosis, and 7 had osteopenia. There was no significant difference between HD and RTRs; however, osteoporosis rate was significantly lower in control subjects. BMD measurements (femur and lumbar T- and Z-scores) were comparable between HD and RTR groups. Control group DEXA values were similar to RTRs; however, they were significantly higher compared to HD group. 25(OH) vitamin D levels were comparable between the HD and RTR groups, and these were significantly lower compared to values of the control group. Mean serum irisin level was 426.6 ± 191.2 pg/mL in hemodialysis group, 342.6 ± 174.8 in the RTR group, and 208.0 ± 186.1 in controls. Serum irisin levels were similar in RTR and HD groups, but their values were significantly higher compared to controls. When we compared serum irisin levels between patients with and without osteoporosis in the whole cohort and hemodialysis and RTR groups, there was no difference. Serum irisin was positively correlated with lumbar T-score both in hemodialysis and RTR groups.

Conclusion
Our study is the first in the literature revealing the positive correlation of serum irisin level with femur T-score in RTRs. Serum irisin level was also positively correlated with femur T-scores in hemodialysis patients.
From Revolutionary to Stakeholder: Looking at Identity Discourses to Understand the 2016 Short-term Change in China’s North Korea Policy
Authors: Olczak Nicholas 
Published: February 2023

AbstractDuring 2016 China’s policies towards North Korea appeared to undergo considerable short-term change, increasingly distancing itself from its neighbour and instead supporting the international community’s response. Existing research has focused on long-term policy change and given little importance to short-term changes in policy, or has drawn on realist and constructivist theories which expect consistency and struggle to account for these changes. This article took an identity discourse approach to understanding the 2016 short-term changes in China’s North Korea policy. It used quantitative computer assisted text analysis methods to measure changes in the dominance of different identity discourses related to North Korea that are produced on the Chinese Internet. It found that around 2015–2016, a previously more dominant “revolutionary” identity discourse lost dominance to a “stakeholder” identity discourse. The article argues that this change made possible the shift in approach to North Korea at the start of 2016 and indicates ways the short-term policy changes at this time may contribute to longer-term change in China’s behaviour.
Creating a Comprehensive Pandemic Response to Decrease Hospitalist Burnout During COVID-19: Intervention vs Control Results in 2 Comparable Hospitals (HOSP-CPR)
Authors: James Tricia T , Hudon Robert , Merrick Todd , Olson Lisa , Hanes Douglas , Scanlan James M. 
Published: February 2023

Abstract
Background

Physician burnout increased during the COVID-19 pandemic.

Objective
To evaluate the effectiveness of a multimodal workplace intervention designed to reduce hospitalist burnout.

Design
Participants and setting: Our intervention group was composed of internal medicine hospitalists at Providence Portland Medical Center (64 providers including 58 physicians and 6 nurse practitioners). Our control was composed of internal medicine hospitalists at Providence St Vincent’s Hospital (59 physicians and 6 nurse practitioners). Measurements: Two surveys were given during, before, and after a 12-month intervention period (October 2020 and again in October 2021). Surveys included demographics, job satisfaction, the Maslach Burnout Inventory, the Pandemic Experiences Survey, and 2 questions about leaving the job. Interventions: Three hospitalists designated as wellness warriors created weekly COVID group meetings, providing up-to-date information about COVID-19 infection rates, treatments, and work-flow changes. Discussions included coping and vaccine hesitancy, difficult case debriefs, and intensive care unit updates. Individual coaching was also offered. Meeting minutes were taken and sessions were recorded for asynchronous access.

Results
No site differences in burnout or job satisfaction were evident pre-intervention. Post-intervention, the intervention group reported 32% burnout while controls reported 56% (p = .024). Forty-eight percent of the intervention group reported high wellness support vs. 0% of the controls (< .001). Intervention participants attributed 44% of wellness support to Providence alone, vs. controls at 12% (< .001). Regressions controlling sex, work hours, experience, race, and children in the home showed the intervention’s positive effects on burnout and job satisfaction remained significant (all p < .02).

Limitations
For privacy reasons, all survey responses were anonymous, meaning that individual pre-post changes could not be tracked.

Conclusion
We believe the intervention resulted in substantial burnout prevention and is feasible for adoption in most hospitals and clinics.
The urban–rural height gap: evidence from late nineteenth-century Catalonia
Authors: Ramon-Muñoz Ramon , Ramon-Muñoz Josep-Maria 
Published: February 2023

AbstractThis paper aims to establish whether there was a gap in biological living standards between urban and rural areas in late nineteenth-century Catalonia, and if so, to determine its extent. The study makes use of a large new dataset based on military records for the cohort of males born in the year 1890 and enlisted in the year 1911. By combining individual heights with information at municipal level, we conclude that the 1890 cohort of conscripts living in rural areas were shorter than those that resided in towns and cities with populations of more than 20,000 people. We also hypothesise about the reasons why urban dwellers in late nineteenth-century Catalonia were taller than their rural counterparts by considering the potential role of rural–urban migration, improvements in public sanitation and health care, and progresses in the quantity and quality of food availability for urban dwellers.
Management of coastal dunes affected by shrub encroachment: are rabbits an ally or an enemy of restoration?
Authors: García-de-Lomas Juan , Fernández Laura , Martín Ildefonso , Saavedra Concepción , Rodríguez-Hiraldo Carmen , Gallego-Fernández Juan B. 
Published: February 2023

AbstractIn coastal dunes, shrub encroachment disrupts natural disturbance, and reduces habitat heterogeneity and species composition. In this paper, we implemented a pilot scale trial aimed at restoring coastal dunes affected by the encroachment by the shrub Retama monosperma (hereinafter Retama) as well as strengthening the populations of Thymus carnosus (regionally cataloged as ‘Critically Endangered’). A total 3 ha of Retama shrub was clearcut in two sites with different Retama cover (54 and 72%). The effect of rabbits on vegetation recovery was assessed by placing exclosures both in treated and untreated plots in Spring, 2015. Plant composition, species richness and diversity were evaluated two years after treatments (with and without Retama clearing, and with and without rabbit exclusion). Retama clearing alone did not allow the recovery of plant composition typical of gray dunes two-years after treatments, but resulted in a biodiversity loss within the Retama understorey when rabbits were present. However, Retama clearing resulted in a significant vigor improvement of T. carnosus in the site with the highest density of Retama. Rabbit exclusion significantly increased species richness and Shannon-Wiener diversity index, and allowed the recovery of plant composition typical of gray dunes. The results suggest that shrub encroachment caused by Retama has a long-lasting negative impact on dune vegetation and that periodic clearing should be combined with rabbit exclusion at least during early restoration stages of dune vegetation. To recover the population of T. carnosus, Retama should be prevented from reaching high cover and periodic clearing without rabbit exclusion is suggested.
Preregistration and Registered Reports in Sociology: Strengths, Weaknesses, and Other Considerations
Authors: Manago Bianca 
Published: February 2023

AbstractBoth within and outside of sociology, there are conversations about methods to reduce error and improve research quality—one such method is preregistration and its counterpart, registered reports. Preregistration is the process of detailing research questions, variables, analysis plans, etc. before conducting research. Registered reports take this one step further, with a paper being reviewed on the merit of these plans, not its findings. In this manuscript, I detail preregistration’s and registered reports’ strengths and weaknesses for improving the quality of sociological research. I conclude by considering the implications of a structural-level adoption of preregistration and registered reports. Importantly, I do not recommend that all sociologists use preregistration and registered reports for all studies. Rather, I discuss the potential benefits and genuine limitations of preregistration and registered reports for the individual sociologist and the discipline.
Predictors of concussion reporting intentions in adolescent hockey players
Authors: Macdonald Natalie D. , Baumann Oliver 
Published: February 2023

AbstractYoung athletes who do not report a concussion injury are at greater risk for a prolonged recovery time and further neurocognitive impairments. Despite the seriousness of the issue and the scale of the problem, not enough is known about the behavioural underpinnings of concussion underreporting in minor athletes. This paper aims to apply the Knowledge, Attitude, and Behaviour (KAB) framework to the issue of injury reporting in adolescents, with the specific purpose of exploring to which degree concussion knowledge, concussion attitudes, and gender affect concussion reporting intentions of both male and female athletes. We recruited 97 young athletes between the ages of 14 and 19 (M = 16.22, SD = 11.06) from the Okanagan Hockey Academy (Canada) and employed a self-administered supervised survey approach to measuring the target variables. A hierarchical multiple regression was conducted, and consistent with the prior literature, females were more likely to report a sport-related concussion than males. It was further found that attitudes around concussions (i.e., taking concussions seriously) were significant predictors of concussion reporting intention. At the same time, there was no significant relationship between concussion knowledge and concussion reporting intention. These results highlight that knowledge about concussion symptoms is insufficient to warrant proper injury reporting. It will therefore be essential to work on changing the attitudes of young athletes regarding the significance of concussions to achieve meaningful behavioural change.
Expansion of large granular lymphocytes after autologous hematopoietic stem cell transplantation
Authors: Yoshida Mina , Matsuda Kensuke , Taoka Kazuki , Honda Akira , Maki Hiroaki , Masamoto Yosuke , Jona Masahiro , Nishikawa Masako , Yatomi Yutaka , Kurokawa Mineo 
Published: February 2023

AbstractExpansion of large granular lymphocytes (LGLs) is sometimes observed in allogeneic hematopoietic stem cell transplantation (HSCT) recipients, and is reported to be associated with a favorable transplant outcome. LGLs are also observed after autologous HSCT, but their clinical implications have not been well investigated. We retrospectively reviewed peripheral blood smears of consecutive autologous HSCT recipients. LGL lymphocytosis was defined as the observation of LGLs in the peripheral blood (> 20% white blood cells) in at least two consecutive blood tests. We evaluated the clinical impact of LGL lymphocytosis on autologous HSCT recipients. LGL lymphocytosis was observed in 18 of 197 patients (9.1%) who received autologous HSCT, at a median of 49 days after transplantation, with a median duration of 120.5 days. Incidence of cytomegalovirus reactivation was significantly higher in patients with LGL lymphocytosis than those without (16.7% vs. 3.3%, p = 0.038). No significant difference in survival rates was observed between groups (3 year OS 90.9% vs. 90.5%, p = 0.793 for lymphoma; 100 vs. 92.4%, p = 0.328 for myeloma). LGL lymphocytosis was observed in almost 10% of autologous HSCT recipients. In contrast to allogeneic HSCT, the duration of LGL was shorter and no significant improvement in survival was observed.
Calcium carbonate-enriched pumpkin affects calcium status in ovariectomized rats
Authors: Wawrzyniak Natalia , Gramza-Michałowska Anna , Kurzawa Paweł , Kołodziejski Paweł , Suliburska Joanna 
Published: February 2023

AbstractCalcium carbonate (CaCO3)-enriched pumpkin may serve as a good source of calcium for patients diagnosed with osteoporosis. In this study, we aimed to determine the effect of CaCO3-enriched pumpkin on Ca status in ovariectomized rats. The study included 40 female Wistar rats divided into five groups (n = 8). One group was fed with a standard diet (control group), while the other four groups were ovariectomized and received a standard diet (control ovariectomized group), or a diet containing CaCO3-enriched pumpkin, alendronate, or both. The nutritional intervention lasted 12 weeks, and then the rats were euthanized. Tissue and blood samples were collected and assessed for the levels of total Ca, estradiol, parathyroid hormone, and procollagen type I N propeptide. In addition, a histological analysis was performed on femurs. The results of the study suggest that CaCO3-enriched pumpkin can increase Ca content in femurs and improve bone recovery in ovariectomized rats. Furthermore, enriched pumpkin contributes to Ca accumulation in the kidneys, and this effect is more pronounced in combination with alendronate.
A novel reduced order model for drone impacts with aircraft structures
Authors: Franke Florian , Burger Uli , Hühne Christian 
Published: February 2023

AbstractSmall unmanned aerial vehicles are a threat for manned aviation. Their increased use by hobby pilots and within the commercial sector has been accompanied by an increase in incidents involving manned aircraft. The problem is that current aircraft structures are designed to resist collisions with birds. They are not designed to withstand drone impacts. The composition of drones differs significantly from previously known load cases. Drones consist of several components with various materials. This means, that there is no analytic model to determine the impact force of such drone strikes with aircraft structures. Within this work, a novel reduced order model for drone impacts is developed. It is validated with high velocity impact test data and explicit finite element simulations. The impact of fragmenting components of the drone are modelled with the aircraft impact model. The impact of non-fragmenting components like motors are described with a spring-mass model. The results show that the approach of superimposing a spring-mass model with the aircraft impact model leads to good results. In case of a rigid target only minor deviations occur within the validity range of the model. Damage and degradation of the target is not included in the model what leads to larger deviations in case of an impact with deformable structures. Nevertheless, the model is very well suited for rapid load estimation and can qualitatively reproduce contact force curves. It can be used for preliminary design of aircraft structures without conducting time and cost intensive tests and simulations.
Keyhole-in-keyhole formation by adding a coaxially superimposed single-mode laser beam in disk laser deep penetration welding
Authors: Möbus M. , Woizeschke P. 
Published: February 2023

AbstractLaser deep penetration welding is characterized by the formation of a vapor capillary (keyhole) and a high overall absorption (coupling rate) of the laser radiation in comparison to heat conduction welding. Due to multiple reflexions within the highly dynamic keyhole, the absorption mechanisms are very complex. The questions, how a laser beam interacts with the existing keyhole, and, if shadowing effects occur, are a matter of concern for several researchers. In this study, the hypothesis that the beam of a laser source can be transmitted to a significant extent through an existing keyhole and acts predominantly at the keyhole bottom was investigated. Experiments were carried out on mild steel and technical pure aluminum, using a specially designed optical system, which allows to coaxially combine two laser beams and to adjust their settings like the energy and the focal plane individually. A combination of a disk laser with a focal diameter of 390 µm and a single-mode fiber laser with a focal diameter of 30 µm was used. Weld depths and seam shapes were analyzed in cross and longitudinal sections. Based on the results, it is shown that the much smaller focal diameter of the single-mode laser beam acted at the bottom of the keyhole and caused a kind of “keyhole-in-keyhole formation” in the form of a local maximum in weld depth whose expression depended on the focal plane of the single-mode laser beam.
Tribological behaviour of Ti3C2Tx nano-sheets: Substrate-dependent tribo-chemical reactions
Authors: Rota Alberto , Bellina Nicolas , Wang Bo , Rosenkranz Andreas 
Published: February 2023

AbstractMXenes, a newly emerging class of layered two dimensional (2D) materials, are promising solid lubricants due to their 2D structure consisting of weakly-bonded layers with a low shear strength and ability to form beneficial tribo-layers. This work aims at evaluating for the first time MXenes lubrication performance and tribofilm formation ability on different metallic substrates (mirror-lapped Fe and Cu discs). After depositing MXenes via ethanol (1 wt%) on the substrates, pronounced differences in the resulting substrate-dependent frictional evolution are observed. While MXenes are capable to reduce friction for both substrates after the full evaporation of ethanol, MXenes lubricating effect on Cu is long-lasting, with a 35-fold increased lifetime compared to Fe. Raman spectra acquired in the wear-tracks of the substrates and counter-bodies reveal notable differences in the friction-induced chemical changes depending on the substrate material. In case of Fe, the progressive failure of MXenes lubrication generates different Fe oxides on both the substrate and the ball, resulting in continuously increasing friction and a poor lubrication effect. For Cu, sliding induces the formation of a Ti3C2-based tribofilm on both rubbing surfaces, enabling a long-lasting lubricating effect. This work boosts further experimental and theoretical work on MXenes involved tribo-chemical processes.
Mutual Self-Regulation of d-Electrons of Single Atoms and Adjacent Nanoparticles for Bifunctional Oxygen Electrocatalysis and Rechargeable Zinc-Air Batteries
Authors: Chandrasekaran Sundaram , Hu Rong , Yao Lei , Sui Lijun , Liu Yongping , Abdelkader Amor , Li Yongliang , Ren Xiangzhong , Deng Libo 
Published: February 2023

AbstractRechargeable zinc-air batteries (ZABs) are a promising energy conversion device, which rely critically on electrocatalysts to accelerate their rate-determining reactions such as oxygen reduction (ORR) and oxygen evolution reactions (OER). Herein, we fabricate a range of bifunctional M–N–C (metal-nitrogen-carbon) catalysts containing M–Nx coordination sites and M/MxC nanoparticles (M = Co, Fe, and Cu) using a new class of γ-cyclodextrin (CD) based metal–organic framework as the precursor. With the two types of active sites interacting with each other in the catalysts, the obtained Fe@C-FeNC and Co@C-CoNC display superior alkaline ORR activity in terms of low half-wave (E1/2) potential (~ 0.917 and 0.906 V, respectively), which are higher than Cu@C-CuNC (~ 0.829 V) and the commercial Pt/C (~ 0.861 V). As a bifunctional electrocatalyst, the Co@C-CoNC exhibits the best performance, showing a bifunctional ORR/OER overpotential (ΔE) of ~ 0.732 V, which is much lower than that of Fe@C-FeNC (~ 0.831 V) and Cu@C-CuNC (~ 1.411 V), as well as most of the robust bifunctional electrocatalysts reported to date. Synchrotron X-ray absorption spectroscopy and density functional theory simulations reveal that the strong electronic correlation between metallic Co nanoparticles and the atomic Co-N4 sites in the Co@C-CoNC catalyst can increase the d-electron density near the Fermi level and thus effectively optimize the adsorption/desorption of intermediates in ORR/OER, resulting in an enhanced bifunctional electrocatalytic performance. The Co@C-CoNC-based rechargeable ZAB exhibited a maximum power density of 162.80 mW cm−2 at 270.30 mA cm−2, higher than the combination of commercial Pt/C + RuO2 (~ 158.90 mW cm−2 at 265.80 mA cm−2) catalysts. During the galvanostatic discharge at 10 mA cm−2, the ZAB delivered an almost stable discharge voltage of 1.2 V for ~ 140 h, signifying the virtue of excellent bifunctional ORR/OER electrocatalytic activity.