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Author(s):  
Yahao Zhang ◽  
Jin Pang ◽  
Hongshan Yin

Mail transmission was not only the main function of information system, but also the main way of network virus and Trojan horse transmission, which has a key impact on the running state of information. In order to deal with the threats of network viruses and Trojans and improve the level of e-mail management, this paper studies the filtering of information system, and proposes a phishing e-mail filtering method based on Improved Bayesian model. MATLAB simulation results show that the consistency p between the amount of data sent by e-mail and the amount received is good, the consistency rate reached 92.3%. the data security level is 95%, encryption proportion / data proportion ratio under Bayesian optimization are higher than those of unfiltered method,which up to 97.2%. Therefore, the Bayesian optimization model constructed in this paper can meet the needs of phishing email filtering in information communication at this stage.


2022 ◽  
Author(s):  
Zongqiang Yang ◽  
Jing Tang ◽  
Hongbao Ma ◽  
Linan Wang ◽  
Jiandang Shi ◽  
...  

Abstract Purpose To assess the efficiency and safety of a modified bone cement pusher in percutaneous vertebroplasty (PVP) combined with a multi-target negative pressure rotary-cutting technique in puncture biopsy of bone tumors. Methods The biopsy performed with the modified bone cement pusher commonly used in PVP, and a multi-target negative pressure rotary-cutting technique. A total of 120 patients with spinal and pelvic tumors undergoing needle biopsy in our department were recruited and assigned to new biopsy device group (group A, n=60) or and conventional biopsy device group (group B, n=60). The puncture time, positive rate, consistency rate, and dependence rate between group A and B were compared to assess the efficiency and safety of the new device. Results No biopsy-related complications were reported in both groups. The puncture time (39.44±8.885 min vs. 61.61±9.880 min), positive rate (96.67% vs. 61.67%), consistency rate (96.55% vs. 81.8%), and dependence rate (100% vs. 83.33%) were significantly superb in group A compared with those in group B (all P<0.05). Patients in group A did not require repeated biopsies, and sufficient samples were obtained through the needle trajectory in PVP. All patients with a definite diagnosis were managed with appropriate treatments. Conclusions Featuring high safety, positive rate and consistency rate, the new device can be performed to collect sufficient pathological samples from multiple angles. Wide clinical replication can be expected considering its evident diagnostic efficiency for bone tumor.


Author(s):  
Harsh Pandey ◽  
◽  
Arjun Shivnani ◽  
Aryaman Chauhan ◽  
Aditya Pratap Singh ◽  
...  

Parkinson's disease is an issue of the central tactile framework that impacts advancement provoking shudders. The tangible cell is hurt in the frontal cortex causing dopamine levels to drop which prompts the condition. Parkinson's is a reformist ailment that causes degeneration of the frontal cortex, provoking both motor and mental issues. While Dysphonia is a voice issue that causes mandatory fits in the larynx muscle, this is one of its indications. While, Bradykinesia, which is ordinarily described as slowness of improvements, is one of the cardinal signs of Parkinson's sickness (PD). Essential clinical rating scales are used usually to measure bradykinesia in routine clinical practice albeit this kind of examination is uneven. It requires clinical investigation, and it can happen starting from the age of 6. Along these lines, this is a starter study that endeavors to recognize connections between Parkinson's contamination factors for basic unmistakable verification of the sickness. There are 1 million cases in India. It is hence reasonable to acknowledge that there is a connection between a patient's ability to talk/make and the development towards Parkinson's as these limits rot as time propels. The mark of the examination was to survey the features of the sound data and the hour of contorting drawing as an extent of bradykinesia. Henceforth to make strong proof that vocalization data and the handwriting test from a patient can assist with dissecting whether they experience the evil impacts of Parkinson's. As needs be, it is at first anticipated that there is an association between the two. We attempt to run distinctive AI classifiers on the data in wants to show up at a high consistency rate that is facilitated with a reasonable runtime. The dataset managed is procured from a new report by the journal, IEEE Transactions on Biomedical Engineering, of various limits of voice repeat. The actual assessment obtained a consistency speed of 95.58% hence we want to show up at a rate close to this or possibly to beat it.


2020 ◽  
Author(s):  
Liu Hui

Abstract Background: This study aimed to describe biomarkers using the comprehensive index of biomarker (CIB) based on consistency rate in both case control (Youden index, Yen) and cohort study (Crc) to determine the efficacy of a biomarker. Methods: The CIB is the geometric mean of Yen and Crc. The simulated data were generated to observe CIB features of sensitivity, specificity, and receiver operating characteristic (ROC) analysis for biomarkersResults: CIB was found to be related to the CRC values ROC analysis. The higher Spe could indicate better diagnostic power and the higher Sen could indicate better joint action for biomarkers with the same Yen. Although Yen is the common index used to evaluate the effectiveness of a biomarker, unfortunately, the Yen value was significantly larger than CIB value under the moderate Spe, showing overestimation.Conclusion: The CIB with combination of consistency in both case control and cohort study could be more reasonable. The CIB could provide a better understanding of the power of a biomarker and would be better at evaluating biomarkers from new systems or concepts.


2020 ◽  
Author(s):  
Xin Feng ◽  
Qianyi Chen ◽  
Sijuan Huang ◽  
Jiaying Wu ◽  
Wanjia Zheng ◽  
...  

Abstract Background: The purpose of this study was to analyze the consistency of bladder filling before and during radiotherapy for pelvic cancer patients.Methods: Before radiotherapy, 105 patients followed a strict bladder protocol of consuming 540mL of water immediately after emptying the bladder. Bladderscan device BVI 9400 was used after emptying bladder and measured every 30 minutes until the bladder volume achieve 400mL. When emptying, half an hour and 1 hour after drinking, chief complaint of urgency, the actual bladder volume and corresponding time were described as: U0, t0; U0.5, t0.5; U1, t1; Ut, t; UT, T. During radiotherapy, 18 patients were randomly selected from 105 patients. They were instructed to keep the same pattern of suppressing urination during the following radiotherapy. The chief complaint of urgency during radiotherapy was observed and recorded. The relative bladder volume was as close as possible to (50%,155%).Results: Before radiotherapy, patients were no statistically difference between U1 (P=0.177) and UT (P=0.052) in the Immobilization, Simulation CT scan, X-ray Simulation. Bladder volume was concentrated at 298-526mL. There was no statistical difference between Ut and UT in X-ray Simulation(P=0.198). Patients emptied bladder volume for 75.2±49.9min, Ut=331.2±140.3mL. During radiotherapy, 18 (18/105) patients received a total of 450 bladder volume (18*25). UP and UT were statisticall different (P<0.05), and the difference was 17.81%. The overall relative bladder volume was negatively correlated with the number of radiotherapy (r = -0.5726, p = 0.0028) and the consistency rate was 82.89% (373/450). 15 patients (15/18) passed, and the consistency rate was 96% (360/375). 3 patients (3/18) failed, and the consistency rate was 17.33% (13/75). The consistency rate had no linear correlations with age (P = 0.2741). Conclusions: U1 was consistent in the Immobilization, Simulation CT scan, X-ray Simulation and during inter-fraction radiotherapy. This indicates that the consistency range is reasonable. Relative bladder volume between (50%,155%) can determine whether the bladder filling of patients with pelvic cancer is consistent with the planned bladder volume before radiotherapy.


2020 ◽  
Author(s):  
Yongwei Li ◽  
Shugang Hu ◽  
Tariq Alkhatatbeh ◽  
Jialin Wang ◽  
Jidong Song ◽  
...  

Abstract Background: With the vigorous development of social media networks, an increasing number of orthopedists in China are taking part in case discussions using WeChat groups. The case discussion process using WeChat is quick, convenient and not limited by time or space, but this kind of case discussion is also chaotic and unconstrained. This study is aimed to observe and analyze the purpose, participation, case completeness, opinion consistency of orthopedic case discussions using WeChat groups.Methods: We collected data related to the case discussions of three orthopedic surgeons by taking screenshots of the chat records in the most-used WeChat groups from June to August 2019, and analyzed the purpose, participation, completeness and the opinion consistency between the majority of members and experts in related fields.Results: The common purposes of orthopedic case discussions were showing surgical results and obtaining treatment advice. The number of likes received for cases showing surgical results was significantly higher than those for cases requesting diagnostic advice and obtaining treatment advice. The complete and relatively complete cases attracted more participants and received more effective comments than the incomplete cases. The opinion consistency rate of the complete cases was higher than that of the relatively complete and incomplete cases.Conclusions: The case discussions using WeChat groups among orthopedists was mainly to show surgical results and request for diagnostic advice. Incomplete cases had low discussion participation and low opinion consistency. Online discussions using WeChat groups should be standardized with respect to the completeness of cases.


2020 ◽  
pp. 1-6
Author(s):  
Yeşer Eroglu

This study was conducted to determine the reasons behind the students’ preferring an activity that would teach them how to perform and teach Zumba effectively and safely as a leisure activity and to what extent the activity met their expectations. The Subjects:This qualitative research consisted of 22 face to face interviews with students of the Rumeli University Faculty of Sport Sciences, Coaching Education, Sports Management and Recreation departments. Materials and Method:The participants were selected with the convenience sampling method and consisted of 16 women and 6 men between the ages of 18-22 years. The Zumba event included 8 one hour Zumba classes given by a specialist in this area. The data was coded separately by two researchers and the consistency rate was found to be 75 percent. Descriptive and content analysis was used and transferred to NVIVO 10 software for data analysis. The themes of reasons for participating in and expectations of students from the Zumba classes that resulted from the interviews conducted prior to and following the event were collected and evaluated. Conclusions: As a result of the data analysis prior to the event, the desire to become a specialist, adding another dimension to their specialty, being ready to branch out, importance future planning, increased financial expectation and popularity of Zumbaemerged as the leading themes in choosing Zumba. The participant’s thoughts after the event were that their initial expectations were met and extra themes of health protection and entertainment were added as gains from the event.


2020 ◽  
Vol 71 (8) ◽  
pp. 1930-1934 ◽  
Author(s):  
Fei Xiang ◽  
Xiaorong Wang ◽  
Xinliang He ◽  
Zhenghong Peng ◽  
Bohan Yang ◽  
...  

Abstract Background The coronavirus disease 2019 (COVID-19), caused by infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has been rapidly spreading nationwide and abroad. A serologic test to identify antibody dynamics and response to SARS-CoV-2 was developed. Methods The antibodies against SARS-CoV-2 were detected by an enzyme-linked immunosorbent assay based on the recombinant nucleocapsid protein of SARS-CoV-2 in patients with confirmed or suspected COVID-19 at 3–40 days after symptom onset. The gold standard for COVID-19 diagnosis was nucleic acid testing for SARS-CoV-2 by real-time reverse-transcription polymerase chain reaction (rRT-PCR). The serodiagnostic power of the specific immunoglobulin M (IgM) and immunoglobulin G (IgG) antibodies against SARS-CoV-2 was investigated in terms of sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and consistency rate. Results The seroconversion of specific IgM and IgG antibodies were observed as early as the fourth day after symptom onset. In the patients with confirmed COVID-19, sensitivity, specificity, PPV, NPV, and consistency rate of IgM were 77.3% (51/66), 100%, 100%, 80.0%, and 88.1%, respectively, and those of IgG were 83.3% (55/66), 95.0%, 94.8%, 83.8%, and 88.9%. In patients with suspected COVID-19, sensitivity, specificity, PPV, NPV, and consistency rate of IgM were 87.5% (21/24), 100%, 100%, 95.2%, and 96.4%, respectively, and those of IgG were 70.8% (17/24), 96.6%, 85.0%, 89.1%, and 88.1%. Both antibodies performed well in serodiagnosis for COVID-19 and rely on great specificity. Conclusions The antibodies against SARS-CoV-2 can be detected in the middle and later stages of the illness. Antibody detection may play an important role in the diagnosis of COVID-19 as a complementary approach to viral nucleic acid assays.


BioTechniques ◽  
2020 ◽  
Vol 68 (3) ◽  
pp. 117-121
Author(s):  
Chao Chen ◽  
Jun Sun ◽  
Yun Yang ◽  
Lu Jiang ◽  
Fengyu Guo ◽  
...  

Aim: We aimed to demonstrate noninvasive prenatal diagnosis (NIPD) of hemophilia A (HA) using a haplotype-based approach. Methods: Two families at risk for HA were recruited for this study. First, maternal haplotypes associated with pathogenic variants were constructed using the genotypes of the mothers and probands. Then, fetal haplotypes were deduced using a maternal haplotype-assisted hidden Markov model. Finally, the NIPD results were further confirmed by invasive prenatal diagnosis. Results: Two fetal genotypes were successfully inferred, with one normal fetus and one carrier fetus. The NIPD results were confirmed by invasive prenatal diagnosis, with a 100% consistency rate. Conclusion: Our test has been shown to be accurate and reliable. With further validation in a large patient cohort, this haplotype-based approach could be feasible for the NIPD of HA and other X-linked single-gene disorders.


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