bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Super-Wideband Antenna for THz wireless communication based on quadratic Bezier outline
Authors: Marouf Fatima Zahra , Ziani-Kerarti Djalal 
Published: July 2022

Abstract
This paper describes a new super wide band monopoly antenna for THz applications.. It has a Super-Wideband performance (3-16 THz) and up which present a fractional bandwidth greater than 135%. it has 2:1 VSWR with 10 dBi peak realized gain and flat group delay. These results satisfy the frequency and time-domain characteristics of the antenna. The radiator and antenna ground plan is based on quadratic Bezier outlines, which can be optimized with few controls’ points. The proposed antenna is designed on Rogers RT5880 substrate (εr=2.2) with a very compact size (42×32×1.6 µm 3). Therefore, this antenna can be used in THz wireless communication systems. such as T-WPAN, T-WBAN and T-WLAN. It can be employed as an elementary antenna in MIMO systems.
Partial recovery of the left DLPFC-right insula circuit with reduced carving in abstinent heroin users: a longitudinal study
Authors: Zhang Shan , Li Minpeng , Wang Shicong , Zhang Jun , Liu Jun , Yuan Kai 
Published: July 2022

Abstract
Background
Brain recovery phenomenon after long-term abstinence had been reported in substance use disorders. Yet, few longitudinal studies have been conducted to observe the potential recovery in heroin users, and little is known about the neural mechanism underlying the decreased craving after prolonged abstinence.
Methods
The 8-month longitudinal design was carried out for 29 heroin users and 30 healthy controls. By choosing the L_DLPFC activated by heroin cue as seeding region, the different brain connections patterns were compared between HCs and HUs by using Granger causality analysis (GCA) at baseline. Then paired t-test was employed to detect the potential recovery of L_DLPFC circuits after prolonged abstinence. Visual analog scale (VAS) and trail-making test-A (TMT-A) were adopted to investigate craving and cognitive control impairments, respectively. The neuroimaging changes were then correlated with the behavioral improvements. Similar analyses were applied for the mirrored right DLPFC to verify the lateralization hypothesis of the DLPFC in addiction.
Results
In the longitudinal study, enhanced GCA coefficients were observed in the L_DLPFC-R_insula circuit in heroin users after long-term abstinence, which were associated with craving score changes. At baseline, decreased GCA coefficients from left DLPFC to bilateral SMA and right putamen, together with the reduced GCA strength from bilateral OFC to left DLPFC were found between HUs and HCs.
Conclusion
Our findings extended the brain recovery phenomenon into heroin fields and suggested the increased regulation of the L_DLPFC over the insula after prolonged abstinence was important for craving inhibition.
Efficacy of a machine learning-based approach in predicting neurological prognosis of cervical spinal cord injury patients following urgent surgery
Authors: Shimizu Tomoaki , Suda Kota , Maki Satoshi , Koda Masao , Harmon Satoko Matsumoto , Komatsu Miki , Ota Masahiro , Ushirozako Hiroki , Minami Akio , Takahata Masahiko , Iwasaki Norimasa , Takahashi Hiroshi , Yamazaki Masashi 
Published: July 2022

Abstract
Prediction of the neurological prognosis of cervical spinal cord injury (CSCI) is useful for setting treatment goals. This study aimed to develop a machine learning (ML) model for predicting neurological outcomes of CSCI. We retrospectively analyzed 135 patients with CSCI who underwent surgery within 24 hours after injury. American Spinal Injury Association impairment scales (AIS; grades A to E) were analyzed 6 months after injury as primary outcome measures. A total of 33 features extracted from demographic variables, surgical factors, laboratory variables, neurological status, and radiological findings were analyzed. The multiclass ML model was created using Light GBM, XGBoost, and CatBoost. The accuracy, recall, precision, and F1 score were calculated for each classification model. We evaluated Shapley Additive Explanations (SHAP) values to determine the variables that contributed the most to the prediction models. Of the ML models used, CatBoost had the highest accuracy (0.807), recall (0.574), precision (0.808), and F1 score (0.622). AIS grade at admission, intramedullary hemorrhage, longitudinal extent of intramedullary T2 hyperintensity, total motor index score of the lower extremity, and HbA1c were identified as important features for the prediction model. The ML models successfully predicted neurological outcomes for five grades of AIS 6 months after injury.
Influence of Collision Angle Micro-deviation of Symmetric Nozzles on Collision Atomization Characteristics
Authors: Ma Yarui , Cui Jiwen , Tan Jiubin 
Published: July 2022

Abstract
The large-scale high-precision machining of the nozzles in the collision atomizer is quite difficult. The slight deviation of the nozzle inclination causes the collision angle to change doubly, which affects the collision position and the spatial distribution of the atomized droplets and reduces the combustion efficiency of the combustion chamber. In order to improve the atomization performance of the dual jet collision atomizer, this study firstly investigates the influence of the collision angle micro-deviation on the atomization characteristics based on the laser interference particle measurement technology (IPI). To jointly study the real-time characteristics of the internal flow and atomization field, a collision atomizer with transparent nozzles is independently designed, and the collision angle is controlled by a high-precision rotary stage. The cavitation phenomenon in the internal flow field is analyzed by simulation and experiment. The hydraulic parameters and atomization performance of the collision atomization field are measured and analyzed. The experimental results show that under the same injection pressure, the increase of the collision angle leads to the decrease of the Sauter Mean Diameter (SMD) and the increase of the atomization cone angle. Taking 60° as the benchmark, within the variation range of ± 5°, the collision angle deviation has little effect on the spatial distribution of atomized droplets.
An audit of documentation of surgical inpatient records, retrospective , descriptive study
Authors: Gasoma Elmuhtadi , Abdalla Islam , Afifi Mohammed 
Published: July 2022

Abstract
Background A medical record audit is a procedure that involves internal or external reviews of the procedures to determine which ones are being carried out correctly and which ones require improvement. Reviewing rules, procedures, and any other elements that have an impact on the efficacy and efficiency of thorough documentation in practice are included in this. Performing an audit of medical records is a preventative measure to identify potential errors that may give rise to investigations. For instance, these assessments can uncover unreported compliance issues that may have an impact on the quality of treatment provided to patients.Study design: Retrospective, descriptive study.Study area: Surgical ward at ribat university hospital .Sample size: A systematic random sample of the last four months' worth of inpatient medical records from a chosen ward was taken. There were 120 case sheets in the sample. The medical record section's discharge case files for the previous four months served as the primary source for the primary data collected. Quantitative methods were utilized to collect the data. Survey and observation were the methods used. 37 checkpoints on a structured checklist (an audit tool) were created.Results: The planned care was not prepared in accordance with the surgery department's usual protocol, and the records were not deemed to be accurate.Recommendation: Educating the clinical staff about the value of accurate form completion and hospital-wide uniformity in the maintenance of medical records, including admission and discharge summaries. The hospital should place a strong emphasis on rewarding the top-performing departments or units and teaching and training the accountable personnel to thoroughly document every patient. A regular audit of the documentation process is required.Conclusion: Medical records are legally required to include a complete, accurate account of every patient's specific care or interactions with hospital staff. In a hospital, medical records are a vital and crucial document. These documents are essential for arranging future hospital medical care as well as for legal concerns.
A pan-cancer analysis of the oncogenic role of protein regulator of cytokinesis 1(PRC1) in human tumors
Authors: Chen Xiaoxu , Hou Dingkun , Dong Shiqiang , Ai Xin , Qin Zheng , Li Hongzheng , Wang Haitao 
Published: July 2022

Abstract
Protein regulator of cytokinesis-1 (PRC1) belongs to the microtubule-associated proteins (MAPs) family, increasing evidence supports that epigenetic abnormalities PRC1 was related to multiple cancers in humans. However, pan-cancer studies of multiple human cancers are still lacking. PRC1 was overexpressed in many kinds of human tumor tissues, and the high expression of PRC1 was ralated to poor prognosis and clinical features. The results of gene ontology (GO) and kyoto encyclopedia of genes and genomes (KEGG) pathway analyses of the PRC1 and its co-expressed genes showed that many gene terms related to cell circle, kinesins and, regulation of cytokinesis. PPI network analysis showed PRC1 have strong interactions with KIF4A, RACGAP1, KIF20A, KIF14, PLK1, KIF20B. Moreover, PRC1 methylation and copy number variation (CNV) were shown to be strongly linked with mRNA expression in most cancer types. Additionally, we also found that the expression level of PRC1 in multiple cancer types is correlated with tumor cell immune infiltration, TMB and MSI, providing a basis for further guiding tumor immunotherapy. PRC1 may serve as a biomarker for cancer progression and poor prognosis, providing a new way of thinking for cancer treatment.
Ontological modelling of creep void analysis data to automate machine learning training process
Authors: Zeb Akhtar , Mätäsniemi Teemu 
Published: July 2022

Abstract
This work focuses on the ontological representation of creep void analysis data to automate the training of the machine learning (ML) model detecting creep voids in scanning electron microscope images. Metallic high-temperature structures are subject to creep phenomenon that can lead to rupture and component failure when prolonged. ML models can be deployed to detect and obtain information about the density and location of creep voids using images as input data. However, due to the irregularities in the size and shape of creep voids and the associated uncertainty in ML models, the material engineer is required to inspect the detections and provide feedback on a regular basis. To automate the retraining of the ML model and to facilitate the close collaboration between the ML experts and the material engineers, domain ontologies providing common vocabularies can be utilized. We aligned the relevant concepts of the EMMO ontology, ML-Schema, and the PROV ontology to document creep void data for smooth information sharing and improving the quality of the ML detection process, hence resulting in better analysis and higher productivity compared to manual characterization. The SPARQL queries are used to gain valuable insights, such as the number and area of creep voids, condition of the metallic structure, and accuracy of the ML predictions.
Helicobacter pylori: a real stomach bug and Future treatment prospects
Authors: Baker Doha H. Abou , Abbas Heba S. 
Published: July 2022

Abstract
Recently, nanotechnology considered one of the most frontiers in scientific sector, which increasingly attracted researchers’ interest due to its variable and valuable applications in all areas. Synthesis of nanoparticles represents a promising era in therapeutical research that may lead to the development of new approaches in pharmaceutical studies. Selenium nanoparticles (SeNPs) share a status of high repute owing to their remarkable therapeutical potential. Biological synthesis of environment-friendly SeNPs using plant extracts has emerged as the beneficial alternative approach to chemical synthesis. In this regard, we have synthesized biogenic SeNPs (PG-SeNPs) using pomegranate peels (PP) aqueous extract as a stabilizing and reducing agent. The PG-SeNPs were characterized and evaluated for their anti-Helicobacter pylori (H.pylori) and anti-stomach cancer potential. Transmission electron microscopy (TEM) confirmed the formation of biogenic PG-SeNPs. The PG-SeNPs were efficacious against H.pylori. The PG-SeNPs at sub-MIC values showed dose-dependent inhibition of biofilm formation. The anti-stomach cancer ability of the PG-SeNPs was evaluated against SNU-16 stomach cancer cells. As evident from the MTT results, PG-SeNPs significantly reduced the cell viability in a dose-dependent manner. Briefly, the PG-SeNPs evolved with synergistically emerged attributes that were effective H. pylori; moreover, the PG-SeNPs and Se/Cu composite embodies intriguing anticancer potential against stomach cancer cells.
Characteristics of bacterial community during the pile fermentation of Pu-erh tea in a five-ton batch of Pu-erh tea commercial production process
Authors: Yang Rui-Juan , Zhang Wei , Wang Qiao-Mei , Peng Wen-Shu , Lv Jie , Yan Liang , Sheng Jun , Lu Jun 
Published: July 2022

Abstract
The purpose of this investigation was to study the bacterial community and the dominant bacterial species in the fermentation process of Pu-erh tea. Bacteria were isolated under different temperature, humidity and acidity conditions according to the actual pile-fermentation characteristics. The 16S rRNA gene analysis results revealed that these bacteria could be classified as 27 species. Polymerase chain reaction denaturing gradient gel electrophoresis (PCR-DGGE) profile showed that Klebsiella pneumoniae, Enterobacter turicensis, Lactobacillus plantarum, and Enterobacter aerogenes presented as dominant species. The number of these four dominant bacteria reached 108, 108, 105 and 107 copies/g dry tea, respectively, at the initial stage detected by real-time quantitative PCR (q-PCR), and all decreased during the process of pile fermentation. The knowledge will enable industrial selection, maintenance and growth of starter culture for high quality Pu-erh tea.
Influence of landscape and livestock management on dung beetle diversity in tropical cattle pastures
Authors: González-Gómez Lizbeth , González-Tokman Daniel , García Juan H. , Lira-Noriega Andrés , Escobar Federico 
Published: July 2022

Abstract
To achieve a balance between conservation and livestock production in the context of highly degraded tropical landscapes, we need a research approach that considers relationships among biodiversity, landscape structure, and farming practices. Given that dung beetles are sensitive to both landscape changes and local scale management practices, these insects are used as ecological indicators that provide information regarding the pasture’s health. We assessed the response of dung beetle diversity to livestock management practices and landscape structure in 22 cattle pastures from a regional relictual landscape dominated by productive land uses. Livestock management practices were the best predictors for species richness, Shannon diversity, and number of individuals. Macrocyclic lactone use was negatively related to species richness and number of individuals; high cattle densities increased Shannon diversity in the studied ranches. Patches of old-secondary forest cover had a positive significant relationship with every response variable and was the best predictor for biomass, but also contributed to maintaining high species richness in cattle pastures, suggesting that secondary forests provide favorable microclimatic conditions for dung beetles in highly degraded landscapes. This study provides evidence that conservation of old-secondary forests in highly modified landscapes and the rational use of macrocyclic lactones can be useful management tools to favor dung beetle diversity and the ecosystem services they provide, thus ensuring pasture health.
The Quality of Malaria Case Management in Different Transmission Settings in Tanzania Mainland, 2017–2018
Authors: Hussein Ally Kassim , Tarimo Donath , Reaves Erik J. , Chacky Frank , Abade Ahmed Mohamed , Mwalimu Charles Dismas , Mohamed Ally , Nasser Ahlam , Kishimba Rogath Saika 
Published: July 2022

Abstract
Background
Tanzania is currently undergoing an epidemiological transition for malaria transmission with some areas of the country having < 10% (hypoendemic) and other areas ≥ 10% malaria prevalence (mesoendemic). Hypoendemic areas on the continuum toward elimination require higher testing rates for fever cases and appropriate treatment. There is a lack of information about the quality of malaria case management in elimination settings in Tanzania mainland. This study examined the influence of endemicity on the quality of malaria case management at health facilities.
Methods
An analytical cross-sectional study was conducted among health facilities in Tanzania mainland. Data were collected by the National Malaria Control Program using an assessment tool to monitor the quality of malaria case management at facilities from September 2017 to December 2018. Using standard quality factors, mean scores from facilities in the different endemicity regions were compared by a Student’s t-test. Simple and multiple linear regression analyses were performed to determine the association between facility performance (score) and endemicity (mesoendemic vs. hypoendemic).
Results
Malaria case management data from 1713 health facilities (1425 public; 288 private), representing 21.3% of all facilities nationally, were available for analysis. Facilities located in mesoendemic regions scored higher compared to those in hypoendemic regions on the overall quality of services [difference in mean scores (d̄) = 2.52; (95% CI 1.12, 3.91)], site readiness [d̄ = 2.97; (95% CI 1.30, 4.61)], availability of malaria reference materials [ d̄ = 4.91; (95% CI 2.05, 7.76)], Health Management Information System tools [d̄ = 5.86; (95% CI 3.80, 7.92)] and patient satisfaction [d̄ = 6.61; (95% CI 3.75, 9.48)]. Facilities in hypoendemic regions scored lower than those in mesoendemic regions [β: -1.54; (95% CI -2.74, -0.53)]. Facilities in urban areas scored lower than those in rural areas [β: -1.56; (95% CI -2.76, -0.38)]. Facilities in regions with implementing partner support scored higher than those without [β: 7.92; (95% CI 6.26, 9.57)].
Conclusion
Health facilities located in malaria mesoendemic regions overall scored higher compared to those in hypoendemic regions. There is a need to target improvement efforts in the lower performing facilities regardless of endemicity setting.
Body mass index and paraspinal muscle on sagittal spino-pelvic alignment and balance in patients with degenerative kyphosis: a case-control study
Authors: Liang Yan , Xu Shuai , Zhu Zhenqi , Guo Chen , Liu Haiying 
Published: July 2022

Abstract
Objective To characterize the distribution of paraspinal muscle in degenerative kyphosis (DK) and identify the impact of body mass index (BMI) and paraspinal muscle on sagittal alignment and balance status.Summary of Background Data The relationship between sagittal alignment, BMI and paraspinal muscle in DK remains unidentified and the available methods for paraspinal muscle measurement are complex. It is assumed that the relationship between muscle and kyphotic severity can be characterized with a simplified procedure.Methods Degenerative thoracolumbar kyphosis (TLK) or loss of lumbar lordosis (LL) was defined as DK group (81 cases), and 60 volunteers composed control group well-matched to DK group in terms of age and gender. DK was evaluated by TLK and LL; paraspinal muscle was depicted by lumbar crossing indentation value (LCIV) on T2-MRI; sagittal balance for DK was evaluated by pelvic incidence (PI) and pelvic tilt (PT). For DK patients, normal-weight, overweight and obesity were defined based on BMI. For balance status, lumbo-pelvic balance (SB1) and imbalance (SIB1) depicted by PI-LL and pelvic balance (SB2) and retroversion (SIB2) expressed by PT were both defined.Results The mean LCIV (mLCIV) in DK group was smaller, and LCIV increased from T12-L1 to L4-L5 in DK group (P <0.01). In DK group, mLCIV in normal-weight subgroup was smaller than that in obesity subgroup (P <0.05). The mLCIV in DTLK only subgroup was larger compared to other 2 subgroups (P <0.05). In DK group, mLCIV was positively correlated with BMI and LL, and BMI and LL were influencing factors of mLCIV in DK group. The mLCIV was larger in SB1 group, while TLK and LCIV were predictors for PI-LL in DK patients. The mLCIV was also larger in SB2 group and LL was an independent predictor for PT in DK patients. Conclusions: LCIV is smaller in DK group while larger in sagittal balance status. LCIV, but not BMI, is correlated with sagittal alignment. This concept simplifies the primay diagnosis of DK group and plays a substantial role in maintaining the sagittal balance.
Treatment of developmental hip dysplasia under 24 months by modified anterior open reduction: A short-term follow-up study
Authors: Liu Xiping , Liu Kun 
Published: July 2022

Abstract
Background: Open reduction(OR) through an anterior approach for the treatment of developmental dysplasia of the hip (DDH) in children younger than 24 months of age is a popular method with proven high success rates . The aim of this study is to present the results of open reduction through a modified anterior approach. Methods: We retrospectively reviewed 60 hips of 45 patients with DDH under 24 months who underwent this modified anterior approach from June 2017 to February 2020. The surgical technique, operative time, intraoperative bloodloss and preoperative Tonnis grade and acetabular index (AI) were recorded in detail. In the latest follow up, the length of the scar, range of motion (ROM), the postoperative AI, centre-edge angle (CEA), Severin radiographic grade and avascular necrosis (AVN) of the femoral head were all assessed.Results: The average operation time was 25 ± 2.8 minutes in unilateral side and 45 ± 4.5 minutes in bilateral sides, the average intraoperative bloodloss was 10.0 ± 4.2 ml in unilateral side and 25.0 ± 1.3ml in bilateral sides. The mean AI was 35.03 ± 2.18°(range 29-45°) in the preoperative period and 20.68 ± 2.01°(range16-33°) at the final follow-up visit. The mean CEA at the final follow-up visit was 23.15 ± 2.05° (range18-32°). On the basis of the modified McKay classification for functional evaluation of hips, the postoperative excellent and good rate reached 96.6%. According to Severin radiological classification evaluation criteria, the postoperative excellent and good rate also reached 93.3%. Three of the hips that had been operated on showed type I signs of avascular necrosis(AVN) in X-ray. Four hips in three patients underwent secondary revision surgery. Conclusions: Open reduction through the modified anterior small incision approach was an encouraging and safe option for treating DDH patients younger than 24 months old who need an open reduction-only treatment, especially for patients with bilateral DDH. Bone procedures may be required for those patients with preoperative AI greater than 40° and(or) Tonnis grade IV.Level of evidence: IV, retrospective non-randomized study.