Yong Yu¹, Yongjun Luo¹, Tong Li², Shudong Li^{3, *}, Xiaobo Wu⁴, Jinzhuo Liu^{1, *}, Yu Jiang^{3, *}

CMC-Computers, Materials & Continua, Vol.63, No.1, pp. 489-507, 2020, DOI:10.32604/cmc.2020.07616 - 30 March 2020

Abstract Personalized recommendation algorithms, which are effective means to solve information overload, are popular topics in current research. In this paper, a recommender system combining popularity and novelty (RSCPN) based on one-mode projection of weighted bipartite network is proposed. The edge between a user and item is weighted with the item’s rating, and we consider the difference in the ratings of different users for an item to obtain a reasonable method of measuring the similarity between users. RSCPN can be used in the same model for popularity and novelty recommendation by setting different parameter values and More >

Qixi Fu¹, Xiaolong Liang^{1, 2}, Jiaqiang Zhang^{1, *}, Xiangyu Fan^{1, 2}

CMC-Computers, Materials & Continua, Vol.63, No.1, pp. 417-444, 2020, DOI:10.32604/cmc.2020.07044 - 30 March 2020

Abstract In order to meet the higher accuracy requirement of trajectory prediction for Unmanned Aircraft System (UAS) in Unmanned Aircraft System Traffic Management (UTM), an Intent Based Trajectory Prediction and Smooth Based on Constrained State-dependent-transition Hybrid Estimation (CSDTHE-IBTPS) algorithm is proposed. Firstly, an intent inference method of UAS is constructed based on the information of ADS-B and geofence system. Moreover, a geofence layering algorithm is proposed. Secondly, the Flight Mode Change Points (FMCP) are used to define the relevant mode transition parameters and design the guard conditions, so as to generate the mode transition probability matrix… More >

Kamaledin Abodayeh¹, Ali Raza², Muhammad Shoaib Arif^{2, *}, Muhammad Rafiq³, Mairaj Bibi⁴, Rabia Fayyaz⁴

CMC-Computers, Materials & Continua, Vol.63, No.1, pp. 65-83, 2020, DOI:10.32604/cmc.2020.08838 - 30 March 2020

Abstract We are associating the solutions of stochastic and deterministic vector borne plant disease model in this manuscript. The dynamics of plant model depends upon threshold number P^∗. If P^∗ <1 then condition helpful to eradicate the disease in plants while P^∗ >1 explains the persistence of disease. Inappropriately, standard numerical systems do not behave well in certain scenarios. We have been proposed a structure preserving stochastic non-standard finite difference system to analyze the behavior of model. This system is dynamical consistent, positive and bounded as defined by Mickens. More >

Ha ABDEL MAKSOUD¹, Mk MAHFOUZ¹, Mi SOLIMAN¹, Mohamed G ELHARRIF^2,*, M ABBASS¹, Ma EL-BADRY¹,

BIOCELL, Vol.44, No.1, pp. 111-115, 2020, DOI:10.32604/biocell.2020.08399 - 01 March 2020

Abstract Pyrethroid esters are widely used as insecticides worldwide. In this study, we aimed to evaluate the harmful effect of deltamethrin on the male reproductive system through the assessment of reproductive hormones, inflammatory markers, and testicular function. To achieve our aim, eighty male 7-9-week-old, Wistar rats were taken, weighed, and divided into four experimental groups. The first group was kept as a control group, and the other three groups were given deltamethrin orally at different concentrations (0.87, 8.7, and 17.4 mg/kg body weight) for nine weeks. The results indicated that deltamethrin administration associated with a significant More >

Osama M. AHMED¹, Mohamed A. HASSAN², Ablaa S. SALEH²

BIOCELL, Vol.44, No.1, pp. 27-29, 2020, DOI:10.32604/biocell.2020.08040 - 01 March 2020

Abstract This study aimed to assess the effect of hesperetin and/or bone marrow-derived mesenchymal stem cells (BM-MSCs) on disturbed lipid profile, heart and kidney functions, oxidative stress and antioxidant defense system in streptozotocin (STZ)-induced diabetic rats. Type 1 diabetes mellitus (T1DM) was induced in male Wistar rats by injecting 40 mg/kg body weight (b.w.) STZ dissolved in citrate buffer (pH 4.5). The diabetic rats were treated with hesperetin orally administered at dose 20 mg/kg b.w., BM-MSCs intravenously injected at a dose of 1 x 106 cells/ rat/week and their combination for 6 weeks. The diabetic rats… More >

Xihe TANG^1,2, Meigang YU³, Rui HUANG², Shengyong LAN^2,*; Yimin FAN^1,*

BIOCELL, Vol.44, No.1, pp. 13-18, 2020, DOI:10.32604/biocell.2020.07593 - 01 March 2020

Abstract Human-induced neural stem cells (iNSCs) transplantation is a potential treatment of neurodegeneration diseases. However, whether the reprogrammed cells have the same characterizations as human fetal neural stem cells needs further exploration. Here we isolated human fetal neural stem cells from aborted 12-week fetal brains and compared with iNSCs reprogrammed from human peripheral blood mononuclear cells in gene expression, proliferation ability, differentiation capacity, and the responses to tumor necrosis factor-α. We found that iNSCs and NSCs both expressed neural stem cell markers Nestin, SOX1, and SOX2. However, only iNSCs can be patterned into dopaminergic neurons and More >

T. Jayasree^1,*, R. Prem Ananth²

Sound & Vibration, Vol.54, No.1, pp. 57-74, 2020, DOI:10.32604/sv.2020.08573 - 01 March 2020

Abstract Vehicles generate dissimilar sound patterns under different working environments. These generated sound patterns signify the condition of the engines, which in turn is used for diagnosing various faults. In this paper, the sound signals produced by motorcycles are analyzed to locate various faults. The important attributes are extracted from the generated sound signals based on time, frequency and wavelet domains which clearly describe the statistical behavior of the signals. Further, various types of faults are classified using the Extreme Learning Machine (ELM) classifier from the extracted features. Moreover, the improved classification performance is obtained by More >

Aarón Giovanni Munguía-Rodríguez^1,2, José López-Bucio¹, Gerardo Rangel Sánchez^1,2, León Francisco Ruiz-Herrera¹, Yazmín Carreón-Abud², Miguel Martínez-Trujillo^2,*

Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 35-43, 2020, DOI:10.32604/phyton.2020.07835 - 01 March 2020

Abstract The post-embryonic growth of the Arabidopsis thaliana root system can be modified by different types of stress, such as sublethal concentrations of metals, which may induce the production of reactive oxygen species (ROS). In this study, the effects of different concentrations of potassium chromate (K_₂CrO₄) on the distribution and relative quantity of hydrogen peroxide (H₂O₂) were determined in primary and adventitious roots in A. thaliana HyPer line seedlings. This line has a biosensor that specifically reports H₂O₂ levels within tissues as fluorescence. Primary root growth was inhibited at 100 μM Cr (VI); in contrast, adventitious root formation was induced… More >

Zhong Liu^{1, 2}, Xin’an Wang¹, Chengjun Sun¹, Ken Lu³

CMC-Computers, Materials & Continua, Vol.62, No.3, pp. 1487-1487, 2020, DOI:10.32604/cmc.2020.04597

Abstract This article has no abstract. More >

Shen Su¹, Zhihong Tian¹, Jing Qiu^{1, *}, Yu Jiang^{1, *}, Yanbin Sun¹, Mohan Li¹, Dunqiu Fan², Haining Yu³

CMC-Computers, Materials & Continua, Vol.62, No.3, pp. 1397-1412, 2020, DOI:10.32604/cmc.2020.06319

Abstract BGP monitors are currently the main data resource of AS-level topology measurement, and the integrity of measurement result is limited to the location of such BGP monitors. However, there is currently no work to conduct a comprehensive study of the range of measurement results for a single BGP monitor. In this paper, we take the first step to describe the observed topology of each BGP monitor. To that end, we first investigate the construction and theoretical up-limit of the measured topology of a BGP monitor based on the valley-free model, then we evaluate the individual… More >