Multi-Scale Fluid Flow Analysis of the Cardiovascular System

The hypoplastic left heart syndrome (HLHS) is one of the rarest congenital heart diseases affecting infants. Out of 150 babies born, one baby suffers from congenital heart disease. Furthermore, nine percent out of those suffering from congenital heart disease specifically suffer from hypoplastic left heart syndrome (HLHS). To this end, the Fontan operation which is a procedure to generate a harmonic blood flow in single functioning ventricle patients has been executed to palliate HLHS patients. In this operation, the inferior vena cava (IVC) and the superior vena cava (SVC), carrying the low-oxygenated blood returning from the lower and upper body back to the heart, are connected to the pulmonary arteries. Despite the fact that the Fontan operation has been executed for years, it is still not the effective palliation to heal HLHS patients since those who have undergone this procedure experience chronic diseases. In order to mitigate the risk associated with the Fontan procedure, an Injection Jet Shunt (IJS) is suggested to connect the aorta to the total cavopulmonary connection (TCPC). Thus, the purpose of utilizing the IJS is to add momentum to the pulmonary arteries. This research is concerning two models, baseline model and IJS model. Those two models represent a simplified Fontan physiology. The purpose of this research is to distinguish the effectiveness of using the IJS

Granulated Blast Furnace Slag In Structural Lightweight Panel For Housing

Sangga relau bagas berbutir (GBS) adalah bahan buangan utama yang dihasilkan oleh industri besi. Dalam usaha untuk menjadikan sebagai bahan pozzolanik yang berkesan, GBS perlu dikisar. Dengan proses tersebut, ianya mengakibatkan penambahan kos dan meletakkan tenaga pengeluaran yang lebih, dan hasilnya, pelepasan gas yang tinggi kepada alam sekitar. Kajian ini bertujuan untuk menggunakan GBS sebagai pengganti simen separa untuk pengeluaran konkrit busa. GBS digunakan sebahagiannya bagi menggantikan simen pada tahap penggantian 30-70% mengikut berat simen pada ketumpatan 1300 kg /m3 campuran konkrit berbusa menggunakan tiga nisbah pengisi kepada pengikat yang berbeza (1.0, 1.5 dan 2.0). Dalam usaha untuk mempunyai pemahaman yang lebih baik tentang perbezaan prestasi antara GBS dan sangga relau bagas hancur (GGBS) yang digunakan secara meluas, GGBS telah digunakan dalam menghasilkan konkrit berbusa menggunakan ketumpatan, tahap penggantian dan nisbah pengisi untuk pengikat yang sama. Granulated blast furnace slag (GBS) is the main waste material produced by the iron industry. In order to activate as an effective pozzolanic material, GBS needs to be ground. Hence, adding to its value in cost and putting in to its production more energy, and as a result, more gas emissions to the environment. This study aimed on using GBS to be used as partial cement replacement for the production of foam concrete. GBS is used to partially replace cement at replacement levels of 30-70% by weight of cement in a 1300kg/m3 foam concrete mix using three different filler to binder ratios (1.0, 1.5 and 2.0). In order to have a better understanding about the difference in performance between GBS and the widely used enhanced ground granulated blast furnace slag (GGBS), GGBS was used in producing foam concrete using similar density, replacement levels and filler to binder ratios

Secure SDN Traffic based on Machine Learning Classifier

Nowadays, the majority of human activities are carried out utilizing a variety of services or applications that rely on the local and Internet connectivity services provided by private or public networks. With the developments in Machine Learning and Software Defined Networking, traffic classification has become an essential study subject.  As a consequence of the segregation of control and data planes, Software Defined Networks have some security flaws. To cope with malicious code in SDN, certain operational security techniques have been devised. In this paper, a machine learning model, supervised, was utilized to identify normal and malicious traffic flows. While, normal traffic were generated using Internet traffic generator, malicious traffic were accomplish by Scapy and Python. The main network features of the OpenFlow flow table such as Packets count, bytes counts, packet rates, byte rate for forward and revers flows, were extracted. The combination of good ML classifier and dataset produced the greatest accuracy rate over 99% in DDoS attack detection, according to the results. Further to the main aim, the presented approach could be utilized to classify different traffic flows with the purpose of balance and priorities the important traffic

Antioxidant, biofilm inhibition and mutagenic activities of newly substituted fibrates

Purpose: A series of benzylidene-2-(4-bromophenoxy)-2-methyl propane hydrazides (1-10) were synthesized and assay them for their biofilm inhibition, antioxidant and mutagenic. Methods: All derivatives were prepared by condensation of various substituted benzaldehyde and acetophenones with 2-(4-bromorophenoxy)-2-methyl propane hydrazide, which was itself prepared by hydrazinolysis of ethyl-2-(4-bromophenoxy)-2-methyl propanoate and were characterized by FTIR, 1H NMR 13C NMR, mass spectrometry. They were screened for their in-vitro anti-oxidant, biofilm inhibition and mutagenicity by established methods. Results: Anti-oxidant results revealed that the electron donating group enhanced the scavenging ability of the compounds as seen in compounds 4b, 4h and 4i. In biofilm inhibition studies, all compounds were more active against Gram –ive bacterial strain when compared to gram +ive strain. The mutagenicity assay results indicate that the compound having chloro group substitution is mutagenic. Conclusion: The benzylidine compounds of 2-(4-bromophenoxy)-2-methyl hydrazide possessing electron donating substituents exhibit superior activities to the electron withdrawing group substituents

Securing medical records based on inter-planetary file system and blockchain

In general, health records include important information like the patient’s history, findings of examinations and assessments, diagnosis reports, documentation of consent, and treatment plans. Sharing this information has grown to be a challenge concerning data security, as it could result in compromising patient privacy. Therefore, the patient's information should not be misused or tampered with. In this paper, a full process of storing and retrieving medical records is proposed using a decentralized system through the integration of two emerging technologies: Blockchain and Inter-Planetary File System (IPFS). The system provides solutions for the major security concerns associated with medical files, including authentication and authorization, database breaches, data integrity of local and cloud storage, and data availability. The obtained results indicate a high level of safety by adding security layers such as confidentiality, authentication, authorization and access control, based on different factors. All these aspects contribute to reaching the aim of the proposed system, which is storing and retrieving medical records in a decentralized and safe manner

A Study on the Perceptual Relationship between Overtime and Output

The overtime is an extra effort to ensure that the job or duty is completed. In private universities, overtime is needed to cover all hours of the courses and this may affect in a good or bad way on the lecture "depending on the number of extra hours".  This research highlights the importance of overtime and how it affects the performance of private universities. The (SPSS) program has been used to analyze the data. 34 questionnaire papers were obtained out of 40 have been distributed on employees at Knowledge University. The study found that there is a strong relationship between employees' Productivity and factors (Wages, Environment and Health, Job content and IT skill). Moreover, there is a weak relationship between Employees' Productivity and factors (Work Arrangement, Stress–Satisfaction)

2-(2-Methyl­anilino)-N′-(propan-2-yl­idene)acetohydrazide

The conformation of the title compound, C12H17N3O, is consolidated by an intra­molecular N—H⋯O hydrogen bond, generating an S(5) ring. In the crystal, inversion dimers linked by pairs of N—H⋯O inter­actions occur, resulting in R 2 2(8) ring motifs

Frequency and Awareness of Ante-Natal Care Among Women, Lahore

Objective: To assess lack of pre-birth visits because of Primary Caesarean-Section in multi-parous women with earlier S.V.D.Place and Duration of Study: This study was carried out from January to September 2018 at Mayo hospital, Lahore.Materials and Methods: The study was carried out over 200 females (who have undergone Primary Caesarean Section with earlier S.V.D) chosen by the non-probability purposive sampling from Mayo hospital, Lahore. A self-administered questionnaire was designed. An informed verbal consent was obtained, and the research was carried out evaluate the questionnaire’s validity. Thereafter, the questionnaire was distributed to get it completed and SPSS version 16.0 was used for analysing data, with 95% confidence interval and value of p=0.05 as statistically significant.Results:During the research duration out of 200 primary caesarean deliveries, malpresentation was indicated of 37.2%, antepartum haemorrhage was reported in 27.1%, foetal distress was 18% and pre-eclampsia was 17.7%. During pregnancy 71.2% (Value of P=0.021) patients had hypertension. Upon enquiry whether the patients felt any swelling on feet or hands during the time, 44.1% (value of P=0.02) patients complained about the swelling that they had. During pregnancy 69.1% (value of P=0.019) patients hade history of fits. Only 38.4% (value of P=0.005) patients had pre-birth clinic visits. Out of 200 patients, 51.2% (value of P=0.006) patients felt less foetal movements. Health workers informed that 51.1% (value of P=0.00) patients had abnormal position of their baby. It was observed that doctors have informed 52.3% (value of P=0.00) patients that their placenta was lying low, and during pregnancy 42.1% (value of P=0.00) patients had severe vaginal bleeding.Conclusion:The pre-birth care must be given most importance and needful examination must also be performed.Key Words: Ante-Natal Care,Antepartum Haemorrhage, Antenatal care,Caesarean section, SVD, Mal-Presentation, Multipar

Generation X and Y: Impact of Work Attitudes and Work Values on Employee Performance

Sustainable competitive advantage lies in the intellectual capital of firms, where it has become important to retain employees and train them for future leadership. Hence, firms must recognize the importance of the work values and attitudes of the employed Generation. Understanding Generational diversity and using the right strategy is crucial for the firm’s success. Theorization of Generational differences have been applied in Western Cultures more often than Eastern Cultures, hence this research expanded the concept of Generational diversity to the banking workforce of Karachi, Pakistan. The relationship between Generation X and Y work values and attitudes on employee performance was examined. Three hundred people from Generation X and Y were taken as a sample from the Commercial Banks in Karachi and responses on different work attitudes and values were taken. It was found that values and attitudes have a significant relationship with employee performance for both Generation X and Y. However, cognitive and social values are important for Generation X while cognitive, instrumental and prestige values are important for Generation Y employees. The study theoretically contributes to work values and attitudes perspective, generational theory and performance perspective and offers implications for creating a suitable combination of tasks and rewards with respect to individual needs

Gama-Fe2O3 silica-coated 2-(2-benzothiazolyl azo)-4-methoxyaniline for supercapacitive performance

Magnetic g-Fe2O3@SiO2 core-shell nanocomposite was prepared using Stöber method and functionalized firstly by isopropenyloxytrimethylsilane as a coupling agent to enter active acetylacetone on the surface of nanoparticles, and after that by the synthesized azo dye ligand, 2-(2-benzothiazolyl azo)-4-methoxyaniline. In such a way, g-Fe2O3@SiO2-azo dye hybrid nanocomposite was formed. The structure of the synthesized azo dye was evidenced by physical and chemical analysis using melting point, Fourier-transform infrared spectroscopy (FT-IR), CHNS elemental analysis, proton nuclear magnetic reso­nan­ce (HNMR) and gas chromatography mass spectrometry (GC-MS). The magnetic proper­ties, structure, element composition and morphology characterization of prepared mate­rials (g-Fe2O3, g-Fe2O3@SiO2, and g-Fe2O3@SiO2-azo dye) were investigated by vib­rating sample magnetometer (VSM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron spectroscopy (TEM) and field electron scanning electron micro­scopy-energy dispersive X-ray-mapping techniques. The electrochemical perfor­mance of synthe­sized g-Fe2O3, g-Fe2O3@SiO2, and g-Fe2O3@SiO2-2-(2-benzothiazolyl azo)-4-methoxy­aniline) electrodes were carried out using cyclic voltammetry (CV), galva­nostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS). It was shown that the finally prepared g-Fe2O3@SiO2-2-(2-benzothiazolyl azo)-4-methoxy­aniline) hybrid nano­composite electrode possesses good storage charge capability of 580 F g-1 at 1 A g-1