bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Prognosis of Thoracolumbar Spine Injury in Cameroon
Authors: Motah Mathieu , Shu Paul Chinonso , Massi Daniel Gams , Ngunyi Yannick Lechedem , Budzi Ngenge Michael , Tanyi Tanyi John , Mefire Alain Chichom 
Published: October 2022

Abstract

Background
Thoracolumbar spine injury (TLSI) secondary to trauma usually occurs abruptly and leaves demeaning consequences, especially in our setting where the prognosis from several studies is poor. A look at the determinants of prognosis at the Douala General Hospital (DGH) would contribute data that could help in improving this prognosis.
Method
This was a hospital-based five-year retrospective study. The study population was patients treated for TLSI in the Douala General Hospital from January 2014 to December 2018. Patients’ medical records were used to retrieve data. Data analysis was done using SPSS Version 23. Logistic regression models were fitted to assess the association between dependent and independent variables. Statistical significance was set at 95% confidence interval (CI), with a P-value < 0.05.
Results
We studied a total of 70 patients’ files. These included 56 males for a M: F sex ratio of 4:1. Mortality rate was 5.7% (n = 4). Almost all (86.9%) of the patients developed complications and we had a 61.4% improvement in neurological status upon discharge. Being covered by health insurance was a predictor of improved neurological status (AOR = 15.04, 95%CI:2.90–78.20, P = 0.001) while being referred was a predictor of a stationary neurological status upon discharge (AOR = 0.12, 95%CI:0.03–0.52, P = 0.005). The average hospital stay was 20 days. We did not identify any predictors of lengthy hospital stay.
Conclusion
The prognosis of TLSI is comparable with those in other studies. The prognosis could be improved by reducing time spent at the periphery before referral, encouraging universal health insurance coverage, and improve on management to reduce complications
The null geodesics of charged and non–chargedblack hole in mimetic gravity
Authors: Haditale Maryam , Malekolkalami Behrooz 
Published: October 2022

Abstract
The null geodesics around the charged black hole spacetimes areinvestigated in the mimetic gravity framework when Einstein’s gravityis coupled to a nonlinear electromagnetic field. The photon paths innonlinear electrodynamics are geodesics of the effective metric whichis determined by the background metric and the particular nonlineartheory considered. The nonlinear effects are represented by a quadru-ple moment and appear as a correction term to Reissner Nordstrom(RN) metric and Reissner Nordstrom-de Sitter (RN–dS) in cylin-drical metric. Remarkably, the nonlinear effects prevent the circularorbits around black holes, and the presence of the mimetic field canchange the repulsive character of dS space to the attractive one. Also,the effect of the mimetic parameter manifests itself in the stronger orweaker gravity of the black hole.
Global Trends on Blastocystis sp. Research: A Scientometric Study
Authors: BİLDEN Alican , GURBUZ Esra , AYDEMIR Selahattin , UNLU Ahmet Hakan , EKICI Abdurrahman , ALKAN Sevil , ÇİÇEK Muttalip 
Published: October 2022

Abstract
Blastocystis sp. is the most common unicellular, luminal parasite in humans and animals. It has been associated with diarrhea and irritable bowel syndrome. This article describes the bibliometric research of articles published in Web of Science (WoS) database on Blastocystis sp. over a 51-year period. The VOSviewer visualization methodology was used for this study. Institutions, nations, international collaborations, journals, articles, authors, keywords, co-authors, co-citations, and citation rates from the WoS database formed the data of this study. A total of 1066 documents were found in the WoS database. Of which 773 were articles and only those publications were analyzed. The articles were cited 22,034 times in total and the mean Hirsch (H) index was 74. The countries with the highest number of articles were as follows: USA (n = 86; 11.125%), Singapore (n = 71; 9.185%), and Malaysia (n = 70; 9.056). Since 2000, there have been a limited number of articles and since 2014 there has been a minimum of 34 publications per year. The highest number of articles was published in 2021 (n = 76) and the highest number of citations (n = 3408) was in 2021. The leading affiliation according to the number of published articles was the National University of Singapore (9.185%), University Malaya (7.245%), and Nara Women’s University (5.304%). The USA, Singapore, and Malaysia have led scientific production on Blastocystis sp. Efforts should be made to help them develop interdisciplinary scientific research networks with these countries on Blastocystis sp.
A new method for quantifying treeline-ecotone change based on multiple spatial pattern dimensions
Authors: BIRRE Déborah , Feuillet Thierry , Lagalis Roman , Milian Johan , Alexandre Frédéric , Sheeren David , Serrano-Notivoli Roberto , Vignal Matthieu , Bader Maaike 
Published: October 2022

Abstract

Context
Treeline-ecotone spatial patterns and their dynamics reflect underlying processes. Changes in ecotone pattern may reflect changes in climatic drivers or land-use practices. However, characterizing these dynamics presents a major challenge, limiting our ability to map, understand and predict changes in the upper limits of mountain forests.
Objective
This paper proposes a new method using multiple pattern dimensions to describe treeline-ecotone spatial pattern shifts. This standardized protocol should be able to (i) distinguish different types of treeline-ecotone patterns within a large study area, (ii) characterize temporal pattern shifts in spatial pattern between two or more dates.
Method
We mapped alpine treeline ecotones (ATE) at 648 sites in the eastern French Pyrenees using aerial images from ~ 1955 and ~ 2015, identifying forest and non-forest areas at the hillslope scale. Extracted patch metrics were summarized using a Principle Component Analysis (PCA) and spatial pattern change was quantified from the shift in the PCA space and compared to elevational shifts.
Results
Three clusters of patterns were distinguished: diffuse, discrete and island-forming ATEs. Between 1955 and 2015, about half of the sites changed from one pattern cluster to another. Shifts into discrete ATEs were associated with smaller and negative elevational shifts, while shifts into diffuse ATEs coincided with the highest positive elevational shifts.
Conclusion
The proposed method allows a standardized and repeatable quantification of vegetation pattern change in alpine treeline ecotones based on historical aerial imagery. Seeing the importance of treeline-ecotone shifts for alpine biodiversity, we encourage the use of this protocol to better understand treeline dynamics at treelines globally.
Recording historical variations in agricultural areas caused by landslides and river floods through participatory mapping in the precordillera of the Atacama Desert, Chile
Authors: González-Pacheco Mauricio , Francos Marcos , Corvacho Oscar 
Published: October 2022

Abstract
In arid areas, rural communities can be affected by erosive phenomena caused by intense rainfall. By involving such communities in participatory mapping over the last few decades, our ability to analyse the effects of these phenomena has been enhanced. The aim of this study was to evaluate participatory mapping as a tool for spatially analysing agricultural variations caused by erosive phenomena, using local people to identify chronologies of physical events so we could analyse their effects on agriculture. The study was conducted in Laonzana, Tarapacá Valley, in northern Chile. We selected the participants for the participatory mapping using specific criteria, and carried out field activities in different phases, which allowed the identification, georeferencing and registration (through participatory mapping) of the information collected in the field and from the collective memories of the participants. Three periods were studied: 1) “before 1977” with 26 sites and covering 234,273 m2; 2) “between 1977 and 2012” with 6 sites and an area of 92,941 m2; and 3) “after 2012’ with three sites, covering 29,852 m2. This provided evidence for a decrease in the number of productive sites, these being limited to the vicinity of the village. The participatory mapping technique has become a useful tool in desert and mountainous areas with low population densities for recovering experiential information from communities. This participation contributes to the provision of examples for researchers, communities and government agencies to use in arguing for the need for cartographic information.
The problem of calculating the β-Bogoliubov coefficient in Non-Oscillating models
Authors: Haro Jaume , Areste Llibert 
Published: October 2022

Abstract
The calculation of the Bogoliubov coefficients is a key piece to obtain the reheating temperature of the Universe. In all cases this calculation is performed either in toy models where some derivative of the potential is discontinuous at some points or by making some approximations to the model. The result of these calculations is applied to more realistic models without checking if they really apply to this realistic model because the exact calculation of the Bogoliubov coefficients for a viable model, which is usually depicted by a smooth potential, requires a very complicated numerical calculation. Here we want to point out the difficulties that one encounters when trying to compute numerically these coefficients for a smooth potential without making approximations, which could lead to completely different results.
PACS numbers: 04.20.-q, 98.80.Jk, 98.80.Bp
Association between leptin and NAFLD: A Two-Sample Mendelian randomization study
Authors: Guo Ziwei , Chen Hening , Zao Xiaobin , Du Hongbo , Guo Yi , Jin Qian , Kong Deming , Liu Ruijia , Zhang Tingyu , Yun Zhangjun , Zhang Jiaxin , Li Xiaoke , Ye Yong'an 
Published: October 2022

Abstract
Background
Nonalcoholic fatty liver disease (NAFLD) etiology involves a complex interaction of genetic and environmental factors. Previous observational studies have suggested that increased leptin levels may be associated with a low risk of developing NAFLD, but the causal relationship remains unclear. Due to advances in genome-wide association studies (GWAS) and the discovery of Mendelian randomization (MR), we aimed to investigate the causal effect of leptin and NAFLD using MR analysis.
Methods
We performed a two-sample Mendelian randomization analysis (TSMR) using summary GWAS data from leptin (up to 50,321 individuals) and NAFLD (894 cases and 217,898 controls) in a European population. Genetic instrumental variables (InstrumentalVariables, IVs) that satisfied the three core assumptions of Mendelian randomization were selected. TSMR analysis was performed using the Inverse Variance Weighted (IVW) method, MR-Egger regression method, and Weighted Median (WM) method. To ensure the accuracy and stability of the study results, heterogeneity tests, multiple validity tests, and sensitivity analyses were conducted.
Results
The results of TSMR correlation analysis between NAFLD and leptin were IVW (OR: 0.3032; 95% CI 0.1181–0.7783; P = 0.0131), WM method (OR: 0.2816; 95% CI 0.0931–0.8678; P = 0.0273), MR-Egger regression method (P = 0.6955), and Among them, the IVW method and WM method showed P > 0.05, and the results were statistically significant. In addition, TSMR correlation analysis between NAFLD and circulating leptin levels adjusted for Body Mass Index (BMI) resulted in IVW (OR: 0.4416; 95% CI 0.2807–0.6948; P = 0.0004), WM method (OR: 0.4194; 95% CI 0.2279–0.7720; P = 0.0052), MR-Egger regression method (OR: 0.2023; 95% CI 0.0541–0.7562; P = 0.0389), P > 0.05, and the results were statistically significant. It is further demonstrated that increased leptin is causally associated with reduced risk of NAFLD, and leptin may serve as a protective factor for NAFLD.
Conclusions
In this study, we explored the causal association between leptin and NAFLD from a genetic perspective based on the GWAS database using TSMR analysis. Further studies are needed to explain the underlying mechanisms.
Power Prediction Method of PV System Based on Bifacial PV Modules
Authors: Li Yunqiao , Feng Yan 
Published: October 2022

Abstract
The increasing proportion of bifacial photovoltaic modules (Bi-PVM) in new projects makes the operation of photovoltaic system (PVS) more complicated, and it is difficult to accurately predict the power of the PVS. To solve this problem, this paper proposes a new power prediction method for PVS based on Bi-PVM. Firstly, we construct the equal proportion digital twin model of the example project, analyze the factors affecting the power generation performance of Bi-PVM by using the superposition principle, and construct the feature engineering according to the analysis results. Secondly, we reduce the parameter error caused by Bi-PVM to the prediction model by introducing the bifacial correction coefficient. On this basis, we establish a power prediction machine learning model based on bi-directional gated recurrent unit (Bi-GRU) network. Finally, we carry out a simulation experiment on Tensorflow machine learning platform. We use the actual operation data of a PV power station in Jiuquan, China to conduct simulation analysis under four weather types, namely sunny day, rainy day, snowy day and complex and changeable day, respectively, and demonstrate the correctness and excellence of the proposed method.
Design of Area Efficient Multilayer Reversible ALU with Energy Estimation using QCA
Authors: Venna Rama Krishna Reddy , Jayakumar G Durga 
Published: October 2022

Abstract
Quantum-dot Cellular Automata (QCA) is a transistor-less technology in which the information passes using a technique that requires the breeding of a polarization state from one circuit element to another, and computations take place without current. The reversible logic circuits potentially overcome the extreme power dissipation problem in CMOS circuits in quantum computing. In any computation system, the core part of the system is the Arithmetic and Logic Unit (ALU). This paper proposes a QCA technology-based reversible ALU using the Peres and Double Peres gates and implements multilayer architecture. It performs 29 operations, including logic operations, addition, increment, and subtraction. This ALU contains 199 cells with 2.5 clocks of latency. In comparison to existing research, the proposed multilayer ALU architecture improves the cell count and area by 20% and 66%, respectively. The total energy dissipation of the design is \(8.24e-02 eV\). QCA Designer 2.0.3 is used to simulating the proposed ALU architectures.
Is it necessary to prescribe the same dose to subclinical lesions as gross tumor volume in non-small-cell lung cancer? —a failure pattern analysis
Authors: Yu Yaner , Shui Yongjie , Zhou Xiaofeng , Liu Lihong , Yuan Zhijun , Wei Qichun 
Published: October 2022

Abstract
Background
As the standard practice of our institution, 60Gy is prescribed to PGTV and 54Gy to PTV in the radical radiotherapy of non-small cell lung cancer (NSCLC). We estimate whether this practice could achieve similar tumor control, and protect lymphocyte at the same time.
Methods
Failure patterns of 46 stage III NSCLC patients received radical radio-chemotherapy were analyzed. Target delineation criterion were as follows: GTV include primary tumor and involved lymph nodes, PGTV expanded from GTV with 5-8mm to compensate for genomic uncertainty. CTV include high-risk area, PTV was extended from CTV with set-up error. 60Gy was prescribed for PGTV, 54Gy for PTV over 30 fractions. The relationship between lymphopenia during radiotherapy and dose-volume parameter was evaluated using Spearman’s correlation analysis.
Results
With median follow-up of 21.06 months, 22 local-regional recurrence were evidenced, 13 patients have in-field recurrence, one patient failure marginally, and the other 8 patients have out-of field recurrence. Lymphocyte is the most sensitive cell to radiation, lymphopenia during radiotherapy was associated with both PTV(r = 0.489, p = 0.003) and PGTV(r = 0.313, p = 0.076), with larger volume predicted severe lymphopenia. In addition, we observed Lung V(5), V(10) and most of heart or aorta DVH parameters (from V10-V50) are important predictors for lymphocyte nadir.
Conclusions
Delivered 54Gy to subclinical lesions does not compromise marginal recurrence risk, at the same time lower severe radiation-induced lymphopenia risk. This finding supports further exploration of dosage reduction to CTV in locally advanced NSCLC.
The comparison of short-term outcomes between robotic and laparoscopic radical distal gastrectomy
Authors: Song Yang , Zhang Qianshi , Feng Zhen , Wang Bo , Ren Shuangyi 
Published: October 2022

Abstract
Purpose: The study's objectives were to compare the short-term outcomes of robotic radical distal gastrectomy(RDG) with laparoscopic radical distal gastrectomy(LDG) for patients with gastric cancer and investigate the learning curve of RDG.
Methods: The cumulative sum (CUSUM) method was used to retrospectively analyze consecutive gastric cancer patients undergoing RDG between January 2019 and May 2021. The duration of surgery, clinical-pathological characteristics and short-term outcomes were evaluated according to the two phases of the learning curve (learning period versus mastery period). We also compared the clinical-pathological characteristics and short-term outcomes between cases in the mastery period and LDG.
Results: Date from 290 patients were included in this analysis, 135 RDG and 155 LDG cases. The learning period was 20 cases. There were no significant differences in clinical-pathological characteristics between the learning period and mastery period. Compared with the learning period, the mastery period had a significant reduction in total operation time, docking time, pure operation time, and estimated blood loss, and a significant increase in hospital costs (P=0.000, 0.000, 0.000, 0.003, and 0.026, respectively). Compared with LDG, robotic cases in mastery period had a longer operative time, shorter first postoperative flatus time, and more hospital costs (P=0.000, 0.005, and 0.000, respectively).
Conclusions: RGD may fasten to recover gastrointestinal function faster after the operation, can be mastered easily after a reasonable number of cases, and was associated with safe and satisfactory short-term outcomes before and after the learning curve.
A review on Sequential extraction of metals bound particulate matter and their health risk assessment
Authors: Rajouriya Kalpana , Pipal Atar Singh , Taneja Ajay 
Published: October 2022

Abstract

Sequential Extraction Procedure (SEP) is a method widely used to extract metals and metalloids from Particulate Matter (PM) based on their solubility in different reaction media. This extraction procedure is used to determine the actual mobility of metals present in the environment. A detailed discussion on the significance of sequential extraction analysis is also being given in this scientific document. This review includes different aspects related to the fractions obtained (exchangeable: F1, reducible: F2, oxidizable: F3, bound to organic matter: F4, and residual fraction: F5) during the SEP. The use of each reagent involved in the fractionation process of PM is also discussed briefly. Finally, the present up-to-date information given by different researchers in various fields of atmospheric chemistry along with the possible future developments is also part of this scientific review. The current review also focuses on the relation between SEP and mathematical expressions (bioavailability, source apportionment, and health risk assessment by the USEPA method). It is revealed from the previous studies that Cd and Zn are highly enriched, mobile as well as highly bioavailable in the environment and poses more risk to the human being. The Cr and As showed carcinogenic nature and hence pose carcinogenic diseases in humans. Whereas, Mn and As are non-carcinogenic in nature for children and adults and thereby both pose a non-carcinogenic disease threat to the population.
Metataxonomic analysis of the uterine microbiota associated with low fertility in dairy cows using endometrial tissues prior to first artificial insemination
Authors: Yagisawa Takuya , Uchiyama Jumpei , Takemura-Uchiyama Iyo , Shun Ando , Ichii Osamu , Murakami Hironobu , Katagiri Seiji , Matsushita Osamu 
Published: October 2022

Abstract
Background: The deterioration in reproductive performance associated with low fertility leads to significant economic losses in dairy farms. Some causes of low fertility have not been identified and adequate countermeasures have not been undertaken. In recent years, the uterine microbiota has begun to attract attention as a possible cause of unexplained low fertility. This study analyzed the uterine microbiota associated with low fertility in dairy cows by 16S rRNA gene amplicon sequencing using endometrial biopsies sampled from cows that had passed the voluntary waiting period before the first artificial insemination (AI).
Results: First, the uterine microbiota of 69 cows from four farms was analyzed regarding parity and AI frequency to conception, together with factors including housing style and feeding management, as each farm was managed differently. The analysis of microbial diversity revealed differences with respect to feeding management and housing style, but not parity and AI frequency. Next, to avoid the effect of housing style and feeding management, we performed the microbiota analysis in relation to parity and AI frequency in 31 cows from one farm. According to the microbiota diversity analysis, the weighted UniFrac beta diversity metric was correlated with AI frequency, but not with parity. A differential abundance analysis of AI frequency found that the abundance of the Arcobactergenus was increased, whereas the co-occurrence network analysis showed that Arcobacter cooperated with several other bacterial taxonomy units. A comparison of the network of the co-occurrence abundance patterns of normal and low-fertility cows (£3 and ³4 AIs, respectively) showed that bacterial associations related to low fertility, including the Arcobacter association, were observed in low-fertility cows. Finally, the examination of the ratio of the Arcobacter-hub model among the tested farms revealed that it was present to a certain extent, despite the skew toward certain farms. Thus, the Arcobacter genus may be key bacteria in the network module for low infertility in certain farms.
Conclusion: This study provided new insights into the relevance of the uterine microbiota as a cause of low fertility, which significantly reduces cows’ reproductive performance.