bluuebunny/crossref_metadata_2025_split huggingface dataset:
Globular pattern formation of hierarchical ceria nanoarchitecture
Authors: Aoyagi Noboru , Motokawa Ryuhei , Okumura Masahiko , Saito Takumi , Nishitsuji Shotaro , Taguchi Tomitsugu , Yomogida Takumi , Ikeda-Ohno Atsuhi 
Published: June 2021

Abstract

Dissipative structures often appear as an unstable counterpart of ordered structures owing to fluctuations that do not form a homogeneous phase. Even a multiphase mixture may simultaneously undergo one chemical reaction near equilibrium and another one that is far from equilibrium. Here, we observed in real time crystal seed formation and simultaneous nanocrystal aggregation proceeding from CeIV complexes to CeO2 nanoparticles in an acidic aqueous solution, and investigated the resultant hierarchical nanoarchitecture. The formed particles exhibited two very different size ranges. The hierarchically assembled structures in solutions were CeO2 colloids, viz. primary core clusters (1–3 nm) of crystalline ceria and secondary clusters (20–30 nm) assembled through surface ions. Such self-assembly is widespread in multi-component complex fluids, paradoxically moderating hierarchical reactions. Stability and instability are not only critical but also complementary for co-optimisation around the nearby free energy landscape prior to bifurcation.
An Improved GM-PHD Approach for Multi Extended Target Tracking with Square-root Cubature Information Kalman Filter
Authors: Liu Zhe , Yang Fengbao , Ji Linna , Qu Xiqiang 
Published: June 2021

Abstract
The conventional target tracking approaches are presented under the assumption of the point target. In multi extended target scenarios, the tracking performance of these approaches may be greatly decreased. The the Gaussian mixture (GM) implementation of the probability hypothesis density (PHD) (named as the ET-GM-PHD approach) has been presented for applying the GM-PHD approach into extended target tracking. However, it has been proposed under the linear models. In fact, most of targets are moving with nonlinear models. Thus, we, in this paper, present a square-root cubature information filter (SCIF) based ET-GM-PHD approach. To be more specific, we, first, employ the cubature points to predict the mean and the square-root factor of covariance. Then, the information forms of the mean and square-root of covariance has been used to update the mean and covariance of GM component. Meanwhile, we integrate the gating method into our method for saving computational complexity. Owing to the significant tracking performance of the SCIF method, our approach can estimate states and number of multi extended targets in nonlinear scenarios. In addition, we also propose an observation driven method to initiate the birth intensity. As for our method, the conditional probability has been adopted to describe the association between the target and its corresponding observations. With such a probability, the most possible partition, where the estimated targets belong to, can be approximated. Thus, the birth intensity can be estimated by removing the cells associated with the estimated targets. Since we use the estimated targets to initiate the birth intensity, our approach can initiate the birth intensity adaptively. The simulation results prove the effectiveness of our approach.
The SIR model towards the Data One year of Covid-19 pandemic in Italy case study and plausible "real" numbers.
Authors: Lazzizzera Ignazio 
Published: June 2021

Abstract
In this work, the SIR epidemiological model is reformulated so to highlight the important effective reproduction number, as well as to account for the generation time, the inverse of the incidence rate, and the infectious period (or removal period), the inverse of the removal rate. The aim is to check whether the relationships the model poses among the various observables are actually found in the data. The study case of the second through the third wave of the Covid-19 pandemic in Italy is taken. Given its scale invariance, initially the model is tested with reference to the curve of swab-confirmed infectious individuals only. It is found to match the data if the curve of the removed (that is healed or deceased) individuals is assumed underestimated by a factor of about 3 together with other related curves. Contextually, the generation time and the removal period, as well as the effective reproduction number, are obtained fitting the SIR equations to the data; the outcomes prove to be in good agreement with those of other works. Then, using knowledge of the proportion of Covid-19 transmissions likely occurring from individuals who didn't develop symptoms, thus mainly undetected, an estimate of the "real numbers'' of the epidemic is obtained, looking also in good agreement with results from other, completely different works. The line of this work is new and the procedures, computationally really inexpensive, can be applied to any other national or regional case besides Italy's study case here.
Influence of Tall Fescue Epichloë endophytes on Rhizosphere Soil Microbiome
Authors: Mahmud Kishan , Lee Kendall , Hill Nicholas , Missaoui Ali 
Published: June 2021

Abstract

Background Tall fescue (Lolium arundinaceum (Schreb.) S.J. Darbyshire) is a popular perennial grass species for livestock production and amenities in the United States. Tall fescue often forms a symbiotic relationship with fungal endophytes (Epichloë coenophiala) which provides increased plant tolerance to environmental stress compared to endophyte-free plants. However, whether this improved plant performance is the sole result of the unique relationship between the grass and the shoot-dwelling fungal endophyte of rhizosphere origin remains a question. This symbiosis possibly regulates the recruitment of beneficial soil microbial communities in endophyte-infected tall fescue rhizosphere and may offer enhanced nutrients and water acquisition, thereby, providing the plant with an increased tolerance level against environmental stresses. We compared the soil bacterial and fungal community composition and investigated possible community shifts in soil microbial populations based on endophyte infection in tall fescue by analyzing the 16s rRNA gene and ITS specific region. Results Our data revealed that bacterial community richness and the evenness indicated by Shannon Diversity Index (SDI) was greater than 4 in both endophyte-infected and endophyte-free tall fescue soil. In both types tall fescue soil, the prominent bacterial families were Planctomycetaceae, Balstocatellaceae_(subgroup_4), Chitinophagaceae, and Bacillaceae. In the case of soil fungal diversity, the SDI was overall low and ranged between 1.21 for endophyte-free and 1.27 for endophyte-infected tall fescue soil. The prominent fungal phyla were Basidiomycota and Ascomycota, and we observed a clear fungal community difference between endophyte-infected and endophyte-free soil at the phylum level. Moreover, endophyte-infected tall fescue soil showed a greater diversity at the genus level compared to endophyte-free tall fescue soil. In addition, plant-available soil phosphorus (P) is also influenced by the presence of endophytes in tall fescue. Conclusion Our results indicate that there is a tripartite relationship between tall fescue, the presence of fungal endophyte in the tall fescue, and the below-ground soil fungal communities. The dynamic of this three-way interaction perhaps contributes to the nutrient acquisition and stress tolerance by tall fescue possibly by recruiting a diverse array of potentially beneficial soil microbes.
Impact of Low Skeletal Muscle Mass on Complications and Survival for Gastric Cancer: A Propensity Score Matching Analysis
Authors: Fang Zhen , Li Peijuan , Liu Jin , Chong Wei , Du Fengying , Wu Hao , Liu Yang , Lu Jiongdi , Li Fei , Shang Liang , Li Leping 
Published: June 2021

Abstract
Background: Increasing evidence has indicated that low skeletal muscle mass is linked with cancer prognosis, but existing have shown contrasting results. The purpose of the study is to determine the impact of preoperative low skeletal muscle mass (LSMM) on complications and survival of patients who undergo laparoscopic gastrectomy for gastric cancer (GC).Methods: Patients who undergo laparoscopic gastrectomy for GC were enrolled and third lumbar vertebra psoas muscles index (PMI) was assessed by computer tomography (CT). Using propensity score matching (1:1) to obtain 2 well-balanced cohorts for available variables influencing clinical outcomes, comparing the postoperative complications and 3-year overall survival (OS) between LSMM group and non-LSMM group.Results: A total of 386 patients, 226 were matched for analyses. Compared with the non-LSMM group, the LSMM group manifested significantly shorter 3-year OS (58.14% vs 71.95%, P=0.034). However, the incidence of postoperative complications was no difference between two groups after matching. After stratification based on the pT stage of the tumor, statistically significant difference in the 3-year OS rates of the advance GC cohort between the two groups were observed.Conclusions: LSMM predicts a poor prognosis for patients with advance GC and it is not associated with postoperative complications.
Thyroid Functions in Bamboo-Shoots Consuming Children of Tripura, North-east India
Authors: Ray Indrajit , Chandra A. K. , Debbarma Saru Kumar , Mookerjee Sekhar Kumar , Datta Ajoy , Singh Laishram Hemchandra 
Published: June 2021

Abstract
PurposeInformation on thyroid functions in populations consuming potent antithyroidal bamboo-shoots (BS) was found scanty. Therefore, to assess thyroid function in BS consuming children was found relevant.MethodsThis cross-sectional study included 127 children from 3 villages. Thyroid volume (TV), free thyroxine (FT4), free triiodothyronine (FT3), thyroid stimulating hormone (TSH), thyroglobulin antibody (Tg-Ab), thyroid peroxidase antibody (TPO-Ab), urinary iodine (UI), urinary thiocyanate (USCN), salt iodine (SI), water iodine (WI), and BS consumption pattern were assessed. ResultsVariable-wise overall mean±SDs/medians/interquartile ranges (IQR) were - age: 8.69±1.69/8.77/7.22-9.74 y, TVol: 0.82±0.27/0.82/0.67-0.96 ml, FT4: 19.5+5.6/20.1/16.9-22.0 pmol/L, FT3: 4.27+1.24/4.22/3.35-4.96 pmol/L, TSH: 2.44+1.39/2.33/1.60-3.15 mIU/L, Tg-Ab: 15.2+10.0/12.5/11.1-14.5 IU/ml, TPO-Ab: 5.58+12.25/3.89/2.90-5.11 IU/ml, UI: 117.4±58.5/108/73-160.5 µg/L, USCN: 0.99+0.67/0.8/0.5-1.2 mg/dl, WI: 4 .69±4.56/3.0/1.35–7µg/L, and BS consumption: 153.8±01.4/119/71.4–214.3 g/person/day respectively. Only 80.3% salt samples had ≥15 ppm iodine. Thyroid dysfunction prevalence was 6.3%. There were positive correlations between TV and FT4 (r=0.2466, p=0.005), UI and TSH (r=0.2633, p=0.003), TSH and FT4 (r=0.2135, p=0.016), TSH and FT3 (r=0.1898, p=0.033), USCN and FT4 (r=0.2477, p=0.005), Tg-Ab and TPO-Ab (r=0.3768, p=<0.001), and negative correlations between Tg-Ab and TSH (r=-0.2024, p=0.023), Tg-Ab and FT4 (r=-0.1869, p=0.035). In boys, USCN had a positive correlation with TPO-Ab (r=0.3069, p=0.018). The village having highest levels of BS consumption (p=0.037) and median UI showed higher TSH levels (p=0.037) and higher FT3 level (p=0.001) compared to the village of lowest BS consumption.ConclusionsThe BS consuming children appear at risk of developing hypothyroidism by Tg-Ab, which may partly be diminished by reducing BS consumption.
Umbelliferone ameliorates ulcerative colitis induced by acetic acid via modulation of TLR4/NF-κB-p65/iNOS and PPARγ/SIRT1 signaling pathways in rats
Authors: Abdel-Wahab Basel A , Alkahtani Saad A , Alqahtani Abdulsalam A , Hassanein Emad H.M. 
Published: June 2021

Abstract
Ulcerative colitis (UC) is a common chronic, idiopathic inflammatory bowel disease associated with inflammatory perturbation and oxidative stress. Umbelliferone (UMB) is a potent anti-inflammatory and antioxidant coumarin derivative. Depending on the possible mechanisms, we aimed to explore and elucidate the therapeutic potential of UMB on UC-inflammatory response and oxidative injury-induced via intrarectal administration of acetic acid (AA). Rats were assigned into four groups: control group, UMB (30 mg/kg) treated group, colitis model group (2 ml of AA; 3% v/v), and colitis treated with UMB groups. Our results exhibited that UMB improved macroscopic and histological tissue injury caused by the AA. Mechanistically, UMB reduced the elevated TNF-α, IL-6, MPO and VCAM-1 via effective downregulation of TLR-4, NF-κB and iNOS signaling pathway, thereby mediated potent anti-inflammatory effects. Moreover, UMB administration resulted in effective up-regulation of both PPARγ and SIRT1 signaling pathways, thereby inhibited both oxidative injury and inflammatory response. Conclusively, UMB protected against AA-induced UC in rats through suppressing of the TLR4/NF-κB-p65/iNOS signaling pathway and promoting the PPARγ/SIRT1 signaling. Indeed, our data proved the effectiveness of UMB in UC and introduced it as a potential therapeutic beneficial applicant for clinical application.
Determination of The Effective Radiation Dose for Mutation Breeding In Purple Carrot (Daucus Carota L.) and Possible Variations Formed
Authors: Yarar Gülistan , Kocak Metin , Denli Nihal , Cavagnaro Pablo F. , YILDIZ Mehtap 
Published: June 2021

Abstract
Plant breeding allows altering the genetic structure of plants to meet human needs. The use of radiation technology for inducing mutations and –thereby- new phenotypic variants has become increasingly common as a tool for developing new crops. The aim of this study was to determine the effective gamma irradiation dose for inducing mutations in purple carrot. For this purpose, increasing gamma radiation doses [0, 50, 100, 200, 300, 400, 500, and 600 Gy] were applied to purple carrot seeds. The irradiated seeds were sown in pots and the emergence and survival rates of the seedlings were analyzed. Considering plant emergence (%) as a response variable, the LD50 dose was 387.5 Gy. Analysis of root length, root width (shoulder diameter) and plant height in control (0 Gy) and irradiated plants (50-600 Gy) revealed an inverse association between these morphological traits and radiation dose. SRAP and ISSR markers were used to identify DNA polymorphisms in irradiated and control plants. The range of amplicons per primer set revealed by ISSR and SRAP markers was 4-10 and 2-13, respectively. In ISSR analysis, the average Nei’s gene diversity, Shannon’s information index, and PIC value ranged from 0.13 to 0.25, from 0.20 to 0.35, from 1.39 to 1.67 for eight doses, respectively. In SRAP analysis, the average Nei’s gene diversity, Shannon’s information index, and PIC value were ranged from 0.15 to 0.25, from 0.23 to 0.37, from 0.43 to 0.58 for eight doses, respectively. Cluster analysis revealed three main groups; a) non-irratidated (control) plants, b) plants from the 600 Gy dose, and c) a third group with two subgroups: one with individuals from the lowest irradiation doses (50-200 Gy) and a second group with individuals from the highest irradiation doses (300-500 Gy).
Oxytocinergic Cells of the Posterior Hypothalamic Paraventricular Nucleus Participate in the Food Entrained Clock
Authors: Caba Mario , Meza Enrique , Escobar Carolina , Jiménez Angeles , Caba-Flores Mario Daniel , Moreno-Cortés María Luisa , Melo Angel I. 
Published: June 2021

Abstract
The mechanisms underlying food anticipatory activity is still not well understood. Here we explored the role of oxytocin (OT) and the protein c-Fos in the supraoptic nucleus (SON) and in the medial (PVNm) and posterior (PVNp) regions of the paraventricular hypothalamic nucleus. Adult rats were assigned to one of four groups: scheduled restricted feeding (RF), Ad libitum (AL), fasting after restricted feeding (RF-F), to explore the possible persistence of oscillations, or Ad libitum fasted (AL-F). In the SON and in the PVNm, OT cells were c-Fos positive after food intake; contrasting, OT cells in the PVNp showed c-Fos activation in anticipation to food access, which persisted in RF-F subjects. We conclude that OT cells of the SON and PVNm may play a role as recipients of the entraining signal provided by food intake, whereas those of the PVNp which contain motor preautonomic cells that project to peripheral organs, may be involved in the hormonal and metabolic anticipatory changes in preparation for food presentation and thus, may be part of a link between central and peripheral oscillators. In addition, due to their persistent activation they may participate in the neuronal network for the clock mechanism that leads to food entrainment.
Nasolacrimal Canal Morphology With or Without Idiopathic Obstruction in Caucasian Adults: A Multidetector CT Study
Authors: Ulutas Hafize Gokben , Yazici Bulent , Ulutas Emin , Yazici Zeynep 
Published: June 2021

Abstract
Purpose: To compare the morphological features of the bony nasolacrimal canal (NLC) in Caucasian adults with and without primary acquired nasolacrimal duct obstruction (PANDO).Methods: The study included one eye each from 38 patients with PANDO and 38 age- and gender-matched controls without PANDO, all of whom underwent multidetector computed tomography. In tomographic images, length, and orientation angles of the NLC, transverse canal diameters at the duct entrance and lower end, and minimum (narrowest) transverse and anterior-posterior canal diameters were measured. Results: The two groups were similar for NLC length and angulations. The transverse entrance diameter was significantly narrower in the PANDO group (mean, 4.6 mm vs. 5.1 mm) (p = 0.09). The narrowest site was most frequently in the middle duct or slightly above the middle in both groups (p > 0.05). The minimum canal diameters were significantly smaller in the PANDO group (p = 0.010 and p = 0.003). When gender subgroups were compared, the significant differences continued for the transverse entrance and minimum diameters in females with PANDO (p = 0.006) and for the minimum anterior-posterior diameter in males with PANDO (p = 0.02). Conclusion: Narrowness of the bony NLC may play a role in the etiopathogenesis of PANDO in adult Caucasians.
Flow Cytometric Analysis Reveals Culture-condition Dependent Variations in Phenotypic Heterogeneity of Limosilactobacillus Reuteri
Authors: Rao Nikhil Seshagiri , Lundberg Ludwig , Palmkron Shuai , Håkansson Sebastian , Bergenståhl Björn , Carlquist Magnus 
Published: June 2021

Abstract
Optimisation of cultivation conditions in the industrial production of probiotics is crucial to reach a high-quality product with retained probiotic functionality. Flow cytometry-based descriptors of bacterial morphology may be used as markers to estimate physiological fitness during cultivation, and can be applied for online monitoring to avoid suboptimal growth. In the current study, the effects of temperature, pH and oxygen levels on cell growth and cell size distributions of Limosilactobacillus reuteri DSM 17938 were measured using multivariate flow cytometry. A pleomorphic behaviour was evident from the measurement of light scatter and pulse width distributions. A pattern of high growth yielding smaller cells and less heterogeneous populations could be observed. Analysis of pulse width distributions revealed significant morphological heterogeneities within the bacterial cell population under non-optimal growth conditions, and pointed towards low temperature, high pH, and high oxygen levels all being triggers for changes in morphology towards cell chain formation. However, cell size did not correlate to survivability after freeze-thaw or freeze-drying stress, indicating that it is not a key determinant for physical stress tolerance. The fact that L. reuteri morphology varies depending on cultivation conditions suggests that it can be used as marker for estimating physiological fitness and responses to its environment.
Comparison Between Bilateral Simultaneous Total Hip Arthroplasty With and Without Drainage; a Retrospective Cohort Study
Authors: Kim Min-Gwang , Yoon Taek-Rim , Park Kyung-Soon 
Published: June 2021

Abstract
BackgroundThere are many reports staged bilateral THA without drainage is a better method than with drainage in many ways. However, there is little report regarding bilateral simultaneous THA (BSTHA) without drainage. This study aimed to evaluate the differences in the clinical outcomes and complication rate of BSTHA with drainage and without drainage.MethodsBetween October 2015 and April 2019, a retrospective cohort study was conducted with modified minimally invasive two-incision method and a consecutive series of 41 BSTHA performed with drainage were compared to 37 BSTHA performed without drainage. It was assessed clinically and radiographically for a mean of 2.1 ± 0.8 years (range, 1.0-4.8 years). Postoperative hematologic values (Hgb drop, Hct drop, total blood loss, transfusion rate), pain susceptibility, functional outcome, and complication were compared in the drained group and the non-drained group. All patients preoperatively received intravenous tranexamic acid (TXA) and intraoperatively received intra-articular TXA on each hip. Statistical analyses were performed using the independent t tests, Chi-squared or Fisher’s exact tests. A significance level of ≤ 0.05 was used for all statistical tests.Results Mean postoperative Hgb (g/dL, p < 0.001) & Hct drop (%, p < 0.001), mean total blood loss (ml, p < 0.001) and mean transfusion unit (IU, p < 0.001) were significantly lower in the BSTHA without drainage than in the BSTHA with drainage group. But the mean dose of morphine equivalent (mg, p < 0.001) was significantly larger in BSTHA without drainage.ConclusionBSTHA without drainage can reduce postoperative blood loss and the requirement for transfusion without increasing other complication. But BSTHA without drainage is more painful method than BSTHA with drainage. Therefore, BSTHA without drainage will be a good option to reduce the burden on the patient by reducing postoperative bleeding if it can control pain well after surgery.
Expression of BDNF and TrKB in Endometriosis and Dysmenorrhea
Authors: Wang Sha , Li Bohan , Hong Wei , Duan Hua , Li Xiao , Wang Yiyi , Guo Zhengchen 
Published: June 2021

Abstract
Background: Brain-derived neurotrophic factor (BDNF) has been recognized as a regulator in the formation and maintenance of chronic pain in various chronic disorders. BDNF together with its high-affinity tyrosine kinase type B (TrkB) receptor were found to be extensively expressed in mammalian female reproductive system. However, BDNF and TrkB expression in different stages of endometriosis, and the correlation between their expression in ectopic lesions and endometriosis pain remains unclear.Methods: This study enrolled 78 women underwent laparoscopic surgery. 62 women diagnosed as ovarian endometrioma, were recruited in the study group.16 women diagnosed as ovarian benign tumors were in the control group. The message RNA (mRNA) level of BDNF and TrKB was detected by real-time PCR, while the protein level was detected by immunohistochemical staining for eutopic and ectopic endometrium in both groups. Dysmenorrhea was assessed by the visual analogue scale (VAS) before the surgery.Results: Immunohistochemical analysis revealed that the expression of BDNF and TrKB in ovarian endometriotic lesions was the highest, followed by those in eutopic and normal endometrium (P<0.05). There was significant difference among each stage of endometriosis for the expression, which increased with the severity of stages. The results of RT-qPCR and immunohistochemistry were consistent with each other. Furthermore, The correlation between the mRNA expression of BDNF, TrKB in eutopic endometrium, and dysmenorrhea VAS score revealed that r=0.52 and 0.56, respectively (P<0.05). And when it came to BDNF, TrKB in eutopic endometrium, the correlation (r) was 0.82 (P<0.05).Conclusions: BDNF and TrKB may play essential roles in promoting disease progression during the development of endometriosis, and are closely related to dysmenorrhea caused by endometriosis.