Miracle-dz/UniFAR-FTUs huggingface dataset:
Percentage of Injuries, and Related Factors Among a Group of Medical Students in Cairo University: A Cross-Sectional Study

BACKGROUND: There has been a lack of data on injuries in young adults, including university students, in particular medical students. AIM: The current study was conducted to explore the percentage, and related factors of injuries among a group of medical students, who constitute an important risk group for accidents and injuries. METHODS: This exploratory cross-sectional study was conducted in Kasr Al-ainy Medical School. A convenient sample of medical students was chosen. 1300 survey questionnaires were distributed along all academic years, 807 from them were completely retrieved. The questionnaire form was adopted from “Health behavior survey among university students in low- and middle-income countries questionnaire. ” Data entry and analysis were carried out using SPSS 21.0. RESULTS: One-quarter reported having a form of injury last year. Falling was the most nominated cause of injuries by the participant students (5,31.3%). Only those who “perceived” their general health as “well” reported being injured significantly more than those who perceived their general health as poor, with a p value = 0.006 and odds ratio of 1.6 (1.1–2.2). Taking drugs was the only factor significantly determining how the injury happened; whether it is intentional or unintentional with a p = 0.01 highlighting that about one-third (5, 31.3%) of those who were intentionally injured were taking drugs. CONCLUSION: Two factors were identified which will increase the understanding of public health of injuries in university communities to design programs for injury prevention programs specifically targeting medical students.
Parental consanguinity increases the risk of congenital malformations

Introduction: Congenital malformation is a physical or structural abnormality present either prenatally or after birth. These anomalies are either primary or secondary malformation. Primary malformations adversely affect body functions, however, the secondary malformations are the structural defects which may have less or no effect on body functions. Primary congenital anomalies show marked variations globally with respect to prevalence. The aim of the current study was to further add to the scientific evidences on the pattern and prevalence of congenital anomalies in cousins and non-cousins’ marriages in Khyber Pakhtunkhwa. Material and Methods: Data of 200 patients (divided into two groups) was collected by convenience sampling through cross-sectional survey. Group-I consisted of 100 gravidas who were diagnosed with anomalous foetus either hydrocephalous, anencephaly or cleft lip/palate and Group-II comprised of infants with inborn heart defects were selected. Results: The study shows 68% consanguineous and 32% non-consanguineous marriages. Hydrocephalous shows the highest rate of incidence (55%) followed by anencephaly (40%) cleft lip/palate (5%), Ventricular Septal Defect (43%), Atrial Septal Defect (29%), Patent Ductus Arteriosus (16%) and Tetralogy of Fallot (12%). The relative risk of hydrocephalus and anencephaly in consanguineous and non-consanguineous marriage was 0.98 while the relative risk of Ventricular Septal Defect and Patent Ductus Arteriosus was 1.1. Rate of miscarriages was comparatively high in cousin marriages. Frequency of CM was higher in multigravida compared to primigravida. Detection rate of hydrocephalus was highest in second trimester, cleft lip/palate in third trimester and anencephaly in first trimester. Conclusion: Parental consanguinity is one of the major risk factors for structural, neurological and cardiac anomalies.
Development of an efficient method for oregano micropropagation

Lippia graveolens, or Mexican oregano, is a plant of economic importance and the collection of foliage is mainly carried out from natural populations. Micropropagation proposes an alternative to produce material, with high phytosanitary quality and propagation in less time of individuals selected for their characteristics of commercial value. The objective of this work was to establish a protocol for the in vitro propagation of Lippia graveolens. The research was conducted in 20182019. The establishment was achieved with nodal segments in basal medium (MS), at this stage 57.32% of axenic explants were recovered. For the propagation stage four concentrations (0, 1, 2 and 3 mg L) of benzylaminopurine (6-BAP) were added to the MS medium, the number of shoots and height of the plan were evaluated, the best results in multiplication were achieved with 3 mg L of 6-BAP, obtaining 40.35 shoots per explant. The length of the shoot was longer in treatments without growth regulators. For rooting, it was tested with three concentrations (0, 0.1, 0.3 and 0.5 mg L) of auxins (indole acetic acid and indole butyric acid) and the rooting percentage and root length were evaluated, obtaining the same result with and without auxin regulators. In the acclimatization phase, photoperiod (16 h and 24 h) was evaluated with and without mycorrhizas (Glomus intraradicens). The best treatment was obtained with 24 h light and the addition of mycorrhizas with 86.11% survival.
Advantages of the Lateral Approach in Severe Genu Valgus Knee Arthroplasty

ABSTRACT Introduction: The treatment of severe valgus is complex. The lateral approach described by Keblish is advantageous for the treatment of these deformities. We decided to evaluate our outcomes using a lateral approach in severe genu valgus knee arthroplasty. Materials and Methods: Of 795 primary arthroplasties from January 2012 to March 2020, we analyzed 40 performed by lateral approach. All had a valgus deformity greater than 20o and a sufficient medial collateral ligament. 33 women (3 bilateral) and 4 men were included. Average age was 71 years (59-79). The main cause was osteoarthrosis (82%). The presurgical deformity was 27o (21-39). The preoperative measurements were: Knee Society Score (KSS) 15 (5 to 42). Preoperative functional score (KFS): 17 (0 to 40). Average surgical time: 91 minutes. The average postoperative follow-up was 37 months. Results: Postoperative femorotibial angle 6.2o (range 4o to 10o). Postoperative KSS 79 (46-95). KFS 82 (60-100). Complications: 3 cases (7%), one infection, one case with poor positioning of components, and one case of peroneal neuropraxia. Conclusion: In knee arthroplasty due to genu valgus, this approach allows restoring the femoro-tibial axis and achieving adequate prosthetic stability, even with implants without a greater degree of constraint, with a complication rate comparable to other techniques.
A New Combined Model with Reduced Label Dependency for Malware Classification

With the technological advancements in recent times, security threats caused by malware are increasing with no bounds. The first step performed by security analysts for the detection and mitigation of malware is its classification. This paper aims to classify network intrusion malware using new-age machine learning techniques with reduced label dependency and identifies the most effective combination of feature selection and classification technique for this purpose. The proposed model, L2 Regularized Autoencoder Enabled Ladder Networks Classifier (RAELN-Classifier), is developed based on a combinatory analysis of various feature selection techniques like FSFC, variants of autoencoders and semi-supervised classification techniques such as ladder networks. The model is trained and tested over UNSW-NB15 and benchmark NSL-KDD datasets for accurate real time model performance evaluation using overall accuracy as well as per-class accuracy and was found to result in higher accuracy compared to similar baseline and state-of-the-art models.
Toxic and genotoxic effects of aqueous extracts of Poligonum weyrichii Fr. Schmidt on the Allium test taken as an example.

The plant Poligonum weyrichii Fr. Schmidt is a promising plant in Murmansk region because it is a valuable source of flavonoid compounds. The aim of the study is to investigate, using a sensitive and the well-established Allium test, toxic and genotoxic effects of aqueous extracts of inflorescences and leaves of the middle tier, which differ in concentration (20, 50, 80 and 100%). According to the observations, the 50%, 80% and 100% concentration aqueous extracts of inflorescences and leaves of P. weyrichii have a mitodepressive effect on the cells of the root meristem of Allium cepa L. , and inhibit the root growth, causing chromosomal abnormalities. The further investigations are necessary on selection of such aqueous extracts concentrations of P. weyrichii because this plant is the source of biologically active compounds.
Clinical and paraclinical characteristics of patients undergoing hemodialysis

Introduction: End-stage renal disease (ESRD) is an irreversible decrease in kidney function with severe consequences. Objectives: The aim of this study was to investigate clinical and paraclinical characteristics of hemodialysis patients. Patients and Methods: This study was a descriptive-analytical performed on 105 patients undergoing hemodialysis referred to Bou Ali and Velayat hospitals in Qazvin. The data were included age, gender, duration of dialysis, kind of vascular access, kind of catheter, site of catheters, weight, height, systolic and diastolic blood pressure, kind of flux, use of midodrine, kind of dialysis solution, number of dialysis per week, calcium (Ca), iron, total iron binding capacity (TIBC), ferritin, parathyroid hormone (PTH), Kt/V, blood urea nitrogen (BUN) and creatinine (Cr). The data were analyzed using SPSS version 21. Results: The mean age of the patients was 60.97±15.13 years and 44.8% of the patients were females. The mean number of dialysis per week was 2.84 times with a mean duration of 3.90 years. The mean Cr level was 8.89±3.14 mg/dL. Males had higher level of BUN (55.91±16.06 mg/dL versus 65.24±17.53 mg/ dL, P=0.006) and Cr (8.09±2.43 mg/dL versus 9.59±3.47 mg/dL, P=0.010). Arteriovenous fistula/AVF was the most common vascular access (76.2% of cases). With increasing BUN, number of dialysis per week and weight, the level of Cr increases significantly (P<0.05). In the younger patients, Cr showed low level compared to the older patients. Conclusion: The number of dialysis per week, weight and BUN level is factors to predict the level of Cr and with increasing these factors, the level of Cr increases. The mean Cr level was high which showed inadequacy of hemodialysis in these patients. The level of Cr and BUN is higher in men.
Pollination success in three tropical dry forest orchid species from Mexico: insights from floral display, visitation rates, and flower micromorphology

Background: Despite long-lasting efforts to disentangle the drivers of orchid pollination, pollination success in tropical dry forest orchids remains largely unknown. Questions and hypothesis: How successful are pollination in three tropical dry forest orchids? How is pollination influenced by floral display and floral rewards (as suggested by floral micromorphology)? We hypothesized a positive effect of floral display on pollinia removal and deposition rates. Studied species: Barkeria whartoniana (C. Schweinf.) Soto Arenas, Clowesia dodsoniana E. Aguirre, and Cyrtopodium macrobulbon (La Llave & Lex.) G.A. Romero & Carnevali. Study site and dates: Nizanda (Oaxaca), Mexico; flowering periods of 2013 and 2014. Methods: We calculated pollinia removal and deposition rates, identified floral visitors and analyzed flower microstructure to search for structures potentially producing rewards. Floral display was measured through number of open flowers, and number and length of inflorescences, and its effect on pollination success was assessed through linear modeling. Results: Pollinia removal rates were higher than deposition rates, and floral display was related to pollination success in C. dodsoniana only. Visitation rates were low for the three species and most visitors were not true pollinators. The three species possess potentially secreting structures, but for B. whartoniana and C. macrobulbon these rewards are likely part of the pollinator deception mechanism. Conclusions: The generalized low pollination success implies the need for high population densities of both interacting parts. We emphasize the need for integrated evaluations of different aspects of the plant-pollinator interaction.
Investigating the Tropospheric Chemistry of Acetic Acid Using the Global 3‐D Chemistry Transport Model, STOCHEM‐CRI

Acetic acid (CH3COOH) is one of the most abundant carboxylic acids in the troposphere. In the study, the tropospheric chemistry of CH3COOH is investigated using the 3‐D global chemistry transport model, STOCHEM‐CRI. The highest mixing ratios of surface CH3COOH are found in the tropics by as much as 1.6 ppb in South America. The model predicts the seasonality of CH3COOH reasonably well and correlates with some surface and flight measurement sites, but the model drastically underpredicts levels in urban and midlatitudinal regions. The possible reasons for the underprediction are discussed. The simulations show that the lifetime and global burden of CH3COOH are 1.6–1.8 days and 0.45–0.61 Tg, respectively. The reactions of the peroxyacetyl radical (CH3CO3) with the hydroperoxyl radical (HO2) and other organic peroxy radicals (RO2) are found to be the principal sources of tropospheric CH3COOH in the model, but the model‐measurement discrepancies suggest the possible unknown or underestimated sources which can contribute large fractions of the CH3COOH burden. The major sinks of CH3COOH in the troposphere are wet deposition, dry deposition, and OH loss. However, the reaction of CH3COOH with Criegee intermediates is proposed to be a potentially significant chemical loss process of tropospheric CH3COOH that has not been previously accounted for in global modeling studies. Inclusion of this loss process reduces the tropospheric CH3COOH level significantly which can give even larger discrepancies between model and measurement data, suggesting that the emissions inventory and the chemical production sources of CH3COOH are underpredicted even more so in current global models.
The Formalization of Arithmetic in a Logic of Meaning Containment

We assess Meyer’s formalization of arithmetic in his [21], based on the strong relevant logic R and compare this with arithmetic based on a suitable logic of meaning containment, which was developed in Brady [7]. We argue in favour of the latter as it better captures the key logical concepts of meaning and truth in arithmetic. We also contrast the two approaches to classical recapture, again favouring our approach in [7]. We then consider our previous development of Peano arithmetic including primitive recursive functions, finally extending this work to that of general recursion.
Examining the Factors that Influence Consumer Satisfaction with Online Food Delivery in Klang Valley, Malaysia

In World War II, female volunteers participated in the work of delivering food to soldiers. The idea of food service delivery spread from the UK to the United States, and food delivery has become a new business model worldwide. In 1987, Pizza Hut began to order by phone and provide food delivery services to capture market share. With the development of the internet and the popularity of smartphone, online ordering and online food delivery (OFD) have become a trend, lifestyle and multibillion-dollar business. In 2017, Malaysia's online food delivery boomed. There are numerous food ordering service platforms on the market, including FoodPanda, Uber Eats (now changed to GrabFood), Honestbee, Dahmakan, DeliverEat, Running Man Delivery, etc. Hence, this research aims to identify factors that continue to influence Malaysian consumer satisfaction with online food delivery after the COVID-19 pandemic and in the future. The results show that perceived price, promotion & discount, convenience motivation, service approach quality, and food quality positively impact the trend factors of OFD services. These findings can provide essential insights for OFD service providers, the restaurant industry and academics, critical for OFD services to improve consumer satisfaction.
Morphological characterization of pequi extract microencapsulated through spray drying

ABSTRACT This objective of this work was to produce spray-drying microencapsulated carotenoid extracts from pequi pulp using maltodextrin and gum arabic and to evaluate the influence of drying temperature on the physicochemical properties of microencapsulated extracts. Emulsions were spray-dried into powders at 150°C, 170°C, and 190°C. Morphological and physicochemical properties of the obtained product were investigated. The temperature of 190°C was that which best conserved the carotenoids and had the best observed solubility. The microspheres produced by spray drying presented an average size of 20 µm. Neither morphological nor color differences were observed for particles dried at different temperatures.
DeepGCNs-Att for Point Cloud Semantic Segmentation

Compared with traditional CNNs, Graph Convolutional Networks (GCNs), with the graph’s neural network structure, can better characterize non-Euclidean space. Furthermore, with the number of the network layers increasing, deep GCNs demonstrate outstanding performance in mining the partial relationship between the point cloud’s local features. However, the current deep GCNs algorithm cannot sufficiently exploit the point cloud’s global characteristics for semantic segmentation. This paper proposes a novel network structure called DeepGCNs-Att to efficiently aggregate global context features. Moreover, to speed up the computation, we add an Attention layer after the GCN Backbone Block to mutually enhance the connection between the distant points of the non-Euclidean space. Our model is tested on the standard benchmark S3DIS. By comparing with other deep GCNs algorithms, our DeepGCNs-Att’s mIoU has at least two per cent higher than that of other models and even shows excellent results in space complexity and computational complexity under the same number of GCN layers.
Facial Expression Recognition Based on Transfer Learning and SVM

The facial expression datasets always have a problem: data with small amount or large amounts of data but also with large noisy. Both problems will affect the facial expression recognition accuracy of the model. A transfer learning method for facial expression recognition is proposed by combining the Convolutional Neural Network (CNN) and Support Vector Machine (SVM). SVM have good performance on small data sets and CNN based on transfer learning have better ability of feature extraction for large noisy data set. This method reduces the training time of model and increase the facial expression recognition accuracy. The experimental results show that the accuracy of the proposed method on the CK+ and FER2013 data sets has reached 99.6% and 68.1%.
Motion of unstable two interfaces in a three-layer fluid with a non-zero uniform current

The nonlinear motion of two interfaces in a three-layer fluid with density stratification is investigated theoretically and numerically. We consider the situation such that a uniform current is present in one of the three layers. The linear dispersion relation is calculated by the Newton’s method, from which the initial conditions for numerical computations are determined. When the uniform current is present in the upper (lower) layer, strong vorticity is induced on the upper (lower) interface, and it rolls up involving the other interface at the late stage of computations. When the current is present in the middle layer, a varicose wave appears at the initial stage, and it evolves into an asymmetric heart-shaped vortex sheet at the last computed stage. These phenomena are presented using the vortex sheet model with and without regularizations.
Theoretical Studies of a Centrifugal Pneumatic Separator with Horizontal Air Flow

The article is devoted to the study of the motion of grain heap particles along the cylindrical surface of the separator. This article substantiates the relevance of post-harvest grain processing in the agro-industrial complex, proposes a design of a centrifugal pneumatic separator with a horizontal air flow, and describes the process of its operation. A mathematical model is obtained for the motion of a grain heap particle along the cylindrical surface of a grain separator with a centrifugal horizontal air flow.
Thermodynamic analysis for the oxidation behaviour of manganese in iron-based melts during demanganisation processes

In this study, the influences of the solid oxidants and pure oxygen on oxidation behaviour of manganese in hot metal are investigated. The results indicate that the content of manganese in liquid iron decreases faster by using of iron ore fines than that by using of pure oxygen in the first 10 min. Manganese reversion could be happened by using solid oxidant Fe2O3, whereas it did not occurr under condition of oxygen blowing within 40 min. Meanwhile, the thermodynamic behaviour of manganese between CaO–SiO2–MgO–FeO–Fe2O3–MnO–Al2O3–P2O5 slag and molten steel has also been studied by means of IMCT-L Mn model based on the ion and molecule coexistence theory (IMCT). With the aid of the current model, the effects of basicity on activity coefficient of MnO are investigated, which demonstrate that shows a negative correlation with mass percent of FetO in the range of 18.06–36.52%, indicating that the slag can hold more manganese oxide.
Application of boundary element method on 2-D laplace equation and its error analysis

The phenomenon of Elliptic boundary value problems is often found in everyday life, such as the problem of water infiltration in the soil, the problem of static heat conduction and the problem of wave propagation. Laplace equation is one of the elliptic equations that is mostly employed in formulating various problems in engineering studies. The analytic solution of Laplace Equation that has irregular domain and involve mixed boundary conditions is not always possible. To overcome the problem, a numerical method called Boundary Element Method (BEM) can be employed. In this study, a BEM is applied to solve the 2-D Laplace Equation. The domain considered in the study is a square shape with length and width of 1 unit. The procedures of the BEM application are basically starting with the transformation of the governing equation into boundary integral equation (BIE) followed by the discretization of the BIE to form a Linear Algebra Equation System to be solved using any available package programs. The results show that when the domain is discretised to 80 segments, the numerical solutions have the smallest error production compared to those of 20 and 40 segments.
Comparative Resistance of Bacteriophages Active against Bacteroides fragilis to Inactivation by Chlorination or Ultraviolet Radiation

In order to assess the potential usefullness of bacteriophages active against Bacteroides fragilis for the monitoring of viral disinfection in environmental samples, the sensitivity to chlorination and to UV irradiation of bacteriophage B40-8 was evaluated in comparison to that of poliovirus type 1 (LSc2ab), simian rotavirus SA11, coliphage f2, Escherichia coli and Streptococcus faecalis. The inactivation of the different microorganisms by chlorine or UV treatment was monitored in tap water and sewage. The results indicated that viruses persisted significantly (p