This study aims to construct an implicit block method with three-point to tackle general second-order ordinary differential equations (ODEs) directly. Hermite Interpolating Polynomial is used as the fundamental function to obtain the proposed method which involved the first and second derivatives of f(t,u,u′). From the investigation done, it was found that the proposed method is consistent and zero-stable

Objectives The current study focuses on the synthesis of Schiff base ligand L [1(pyridine-2-ylimino) methyl) naphthalene-2-ol], and its applications as anticancer agent against human lung (H-460) and breast (MCF-7) cell lines, and as antidepressant agent. Methods The Schiff base ligand L was synthesized by aldol condensation reaction by reacting commercially available 2-hydroxy-1-napthaldehyde with

In this work, we exemplify the behaviour of the nonlinear model of arbitrary order differential equations by adopting q-homotopy analysis transform method (q-HATM). In the present study, the illustrated scheme is a graceful amalgamation of Laplace transform with q-homotopy analysis algorithm and we considered arbitrary order derivative using Atangana-Baleanu (AB) operator. The suggested nonlinear system

Camptothetin (CPT) is a quinoline alkaloid originally isolated from the Chinese tree, Camptotheca acuminata Decne. CPT was found to have anticancerous and antiviral properties. Derivatives of natural CPT, including toptecan and irinotecan are used clinically to treat a variety of cancers. Apart from Camptotheca acuminata Decne, CPT production was also found in the perennial plant Ophiorrhiza mungos

We study combination of Sinc and B-Spline scaling functions to develop numerical method for the time-fractional convection-diffusion equations . Dou to exponential convergence of Sinc interpolation, the shifted Sinc functions based on double exponential transformation have been used for the spatial discretization , and the B-Spline scaling functions have been used for the temporal discretization. We

This paper is devoted to deriving several fractional-order models for multiphase flows in porous media, focusing on some special cases of the two-phase flow. We derive the mass and momentum conservation laws of multiphase flow in porous media. The mass conservation-law has been developed based on the flux variation using Taylor series approximation. The fractional Taylor series's advantage is that

Honey is deeply rooted in Saudi Arabian culture, religion, and trade, and The Holy Quran refers to its medicinal and healing properties several times. Honey is a highly symbolic and well-regarded product in the Kingdom of Saudi Arabia and it is widely used for its medicinal value in addition to its nutritional uses. Saudi Arabia is home to an estimated 2200 flowering plants, and monofloral honey from

Usage of cyclic volatile methyl siloxanes(cVMSs) in the industrial process is unavoidable due to their superior properties; however, it is hazardous to human health. Photocatalytic zinc oxide coated aluminum anode is used to degrade the cVMSs in wastewater. In this work, we investigated the relationship among degradation process parameters such as current density(4 - 20 mA/cm2), initial pH(5 -9), plate

The present work aims to solve the fractional reaction–diffusion equation (RDE) using an effective and powerful hybrid analytical scheme, namely q-HASTM. The suggested technique is the combination of Sumudu transform (ST) and HAM technique. The definition of Caputo's fractional derivative has used. The numerical procedure reveals that only few iterations are needed for better approximation of the solution

The origin of precursory signals that precede the P-waves is controversial, as it may be caused by ground effect (seismic nucleation phase) or instrumental effect due to a digitizer. Such signals cause errors in the automatic detection of P-wave arrival times and consequently decrease the accuracy of earthquake parameter estimations. In this paper, we proposed spectral analysis techniques to distinguish

Coronaviruses M proteins are well-represented in the major protein component of the viral envelope. During the viral assembly, they play an important role by association with all other viral structural proteins. Despite their crucial functions, very little information regarding the structures and functions of M proteins is available. Here we utilize bioinformatic tools from available sequences and

Based on the untreated biofilm formation in urinary tract infections (UTIs), current study was focused on the inhibition of Pseudomonas aeruginosa (P. aeruginosa) biofilm formation using Nerium oleander (N. oleander) essential oils. Initially, the LC-MS analysis of antibacterial potential of hydro distillated N. oleander essential oils was detected by LC-MS analysis. Initially, the antibacterial nature

The meteorite found in the Empty Quarter of Kingdom of Saudi Arabia (KSA) is the largest meteorite found in the KSA and has the shape of an irregular ellipsoid with semi-axes of 0.65 m, 0.38 m, and 0.27 m; a density of 6400 kg/m3; and a mass of 2550 kg. It is a massive piece belonging to the category of iron–nickel meteorites, which is contained in only 5% of the total showers. The present report is

The basic mechanism of electrospinning is the rapid whipping of charged liquid jets, undergoing a chaotic “whip” process, and eventually the formation of disordered reticular fibers is continuously deposited on the receiving device. Firstly, the physical model of jet whipping is studied, which is to be established the physical model of solvent evaporation on the surface of the jet. The Jeffreys model

Carica papaya has tremendous medicinal applications against diverse diseases since ancient period. Considering this, the present study was aimed to assess in vitro antioxidant and anti-diabetic activities of bioactive fractions of C. papaya seed extracts. Initially, the shade-dried ripen seeds of C. papaya were powdered and extracted via soxhlet protocol to obtain crude extracts. The crude extracts

Concentrator photovoltaic (CPV) technology is a leading approach for increasing the utilization and deployment of PV systems. A major disadvantage is the need for cooling to maintain the performance of the solar cell. Active cooling is power-consuming and complex. A proposed passive cooling subsystem, uses a thermoelectric generator (TEG), besides cooling the solar cell, it generates power from waste

Propolis is a naturally produced resinous mixture the bees are secreted through collecting resin of plants, buds, and exudates. According to several studies, propolis possessed various properties, one of which known as immunomodulatory property. Immunomodulatory property can be assessed and observed through the anti-inflammatory and cytotoxicity properties of propolis. In Indonesia, Tetragonula sapiens

Biopesticides are gaining interests as an alternative to chemical-based pesticides for arthropod pest management. Among the widely-used biopesticides is the entomopathogenic fungi Beauveria bassiana due to its efficacy and broad range of arthropod hosts. Although the general mechanisms of infection by B. bassiana are known, the underlying complexity of molecular mechanisms at each infection stage is

Several forms of bacterial exopolysaccharides (EPSs) have been reported as having industrial and medical benefits. Previously, our group had achieved a high yield of EPS production (8.6 gm/L) from Enterobacter sp. isolated from the marine environment of Haqel Beach, in the Tabuk region of Saudi Arabia, by optimizing its culture conditions. Then, the strain selected was identified using conventional

India is a land of rivers and Narmada is one of the principal river systems and is ascribed as the lifeline of Central India. Freshwater ecosystems such as rivers across the globe are facing degradation due to multitude of anthropogenic stress factors. Holistic and sustainable approach is prerequisite for monitoring, risk assessment and management of such multitude of problems and critical challenges

A generalized non-integer Lennard-Jones (L-J) potential function with an additional parameter m is proposed to calculate the cohesive energy and melting point of nanoparticles. The model based on the new generalized non-integer L-J potential function has been successful in predicting experimental values. The calculated cohesive energies show an excellent agreement with the experimental values of the

In this paper, we have implemented an efficient and high accurate radial basis function (RBF) collocation scheme for solving nonlinear systems of q-fractional differential equations. We firstly convert the problems under investigation into the equivalent systems of weakly singular q-integral equations by some essential results of fractional q-calculus. Secondly, we combine RBF collocation method and

In present study, we report hydrothermal synthesis of reduced graphene oxide (RGO) supported NiMoO4-nanorods (NRs) nanocomposites (NiMoO4-NRs@RGO nanocomposites) for electro-catalysis of water to oxygen evolution and reduction reactions (OER/ORR). The prepared nanocomposites were characterized by x-ray diffraction (XRD), Raman, Fourier transform infrared (FTIR), high resolution transmission electron

Objectives: The present work aims at the synthesis of metal-doped and undoped titania photocatalysts for the degradation of methylene blue and neutral red dyes. Methods: Un-doped and metal-doped titania photocatalysts were synthesized by hydrothermal treatment, calcined at 673 K, and were evaluated by SEM, XRD, and XPS techniques for their phase composition. Results and conclusions: XPS studies of

We efficaciously extended the ansatz in the Riccati equation rational expansion technique to a new broad form and is used to attain some new exact wave solutions for the couple non-linear Drinfeld-Sokolov-Wilson (DSW) system. This system arises in water waves, quantum mechanics, fluid mechanics, biology, chemistry etc. Several of the attained solutions which is in the shape of rational solitary wave

Substantial interest has emerged on the use of marine microorganisms as producers of important macromolecules such as exopolysaccharides (EPSs), to apply them in areas including the food, pharmaceutical, and cosmetic industries, as well as other important sectors. In this study, thirty seven marine bacterial isolates were isolated from Haqel Beach in Tabuk region, Saudi Arabia. We found that only nine

In this study, we examined five previously synthesized compounds and checked their binding affinity towards the SARS-CoV-2 main protease (Mpro) by molecular docking study, and compared the data with three FDA approved drugs, i.e., Remdesivir, Ivermectine and Hydroxychlorochine. In addition, we have investigated the docking study against the main protease of SARS-CoV-2 (Mpro) by using Autodock 4.2 software

Objective The study was carried out to investigate the rheological behavior and storage studies of sprouted onion pastes from four varieties (Punjab White, Punjab Naroya, PRO-6 and commercial). Methods The storage study of paste samples from raw and sprouted onions packaged in polyethylene terephthalate (PET) bottles was carried out at room temperature (25 ± 1 °C) after thermally processing them at

The purpose of this paper is to suggest an approach for increasing the convergence speed of Halley’s method to solve a non-linear equation. This approach is based on the second order Taylor polynomial and on Halley’s formula. By applying it a certain number of times, we obtain a new family of methods. The originality of this family is manifested in the fact that all its sequences are generated from

The molecular structure of (E)-2-(butan-2-ylidene)hydrazinecarbothiomide (2-butanone thiosemicarbazone) was validated by density functional theory (DFT) calculations. The characterization of the ligand was done using various spectroscopic techniques. Four transition metal complexes were prepared with the ligand and their antioxidant activity was tested. Molecular docking studies of the complexes were

In this study, a novel trans-(1E,2E)-benzil-O,O-dimethylsulfonyl dioxime (BDMDO) monomer was prepared via a one-step dehydrochlorination reaction. BDMDO was characterized by 1H and 13C NMR, UV–Vis, and FT-IR spectroscopies, CHN elemental analysis, mass spectrometry, energy-dispersive X-ray spectroscopy, and TGA. According to the X-ray diffraction data, the BDMDO crystal structure was solved as a trans-isomer

Fusarium oxysporum, a fungal plant pathogen, causes severe wilting and heavy losses in cotton. Present research was planned to appraise the weed extracts of Parthenium hysterophorus, Chenopodium album, Canada thistle and Phalaris minor against F. oxysporum. Morphological identification of F. oxysporum was done by observing white cottony mycelium with dark-purple undersurface on growth media and oval

Coronavirus disease (COVID-19) is a global pandemic caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Up to date, there has been no specific cure to treat the disease. Indonesia is one of the countries that is still fighting to control virus transmission. Yet, at the same time, Indonesia has a rich biodiversity of natural medicinal products that potentially become an alternative

In the last few decades, metabolite identification and detection have become an integral component of drug discovery process. The detection and depiction of an identified metabolite is significant for the development of safe and effective therapeutic agents as these metabolites may be pharmacologically active or toxic in nature. A (UPLC-MS/MS) method was developed for the quantification of eslicarbazepine

Groundwater quality assessment is of utmost importance for water security in arid areas, such as south of Wadi El-Farigh due to deficiency of recharge, high evaporation rates and groundwater demand for agricultural and drinking utilities. The physicochemical parameters of 25 groundwater samples were investigated. Major ion occurrence was sequenced as Na+ ˃ Ca2+ ˃Mg2+ ˃K+ and Cl− ˃ SO42- ˃HCO3 − ˃ CO3

Various microorganisms present in beverages as contaminants, yet few can develop in the presence of acidic and low oxygen conditions. Notably, yeast is the dominant microbe group present in the fruit juices and drinks in the fruit juices and drinks. Due to the microbe development and secondary metabolite production, such as polluting compounds, carbon dioxide, and spoilage, the beverages were identified

Southwestern Saudi Arabia is enriched with fractured and highly-weathered igneous and metamorphic rocks that function as the limited aquifer and supply significant quantities of water for household use and agriculture in this area. Twenty-seven groundwater samples were collected from shallow-dug wells and physio-chemically examined. It is displayed that, however the average value of total dissolved

Carbon dioxide gas is the key element of the carbon cycle and a major source for photosynthesis, but for the past 150 years, the atmospheric CO2 has been increased drastically from 250 to 418 ppm due to the extreme utilization of fossil fuels. This accelerated release of CO2 acts as a major source for climatic change due to the greenhouse gas effect resulting in global warming and melting of polar

Specimens of Heteropneustes fossilis were treated with various levels of malathion and its 96 h LC50 value was determined. The effects of sub-lethal concentrations of insecticide on hematological and biochemical profile of Heteropneustes fossilis were also registered. The 96 h LC50 value obtained was 8.81 mg/l. Exposure of sub-lethal doses (0.44, 0.88 and 1.76 mg/l which are 5, 10 and 20% of the LC50)

Little information is available about the biodiversity of parasitic copepods in the Arabian Gulf. The present study aimed to provide new information about different parasitic copepods gathered from Parupeneus rubescens caught in the Arabian Gulf (Saudi Arabia). Copepods collected from the infected fish were studied using light microscopy and scanning electron microscopy and then examined using standard

Background Bicuspid aortic valve is a heritable heart valve disease with characteristic early onset of valve calcification and stenosis with rapid progression compared with tricuspid aortic valve. Strong evidence indicates that many miRNAs and their target genes are involved in the development of BAV calcification. This study was designed to investigate miR-15a and Smad7 expressions in BAV and their

Landslides hazard as one of the major environmental threats of the Neom promising city in northwestern Saudi Arabia has been assessed through data integration of several sources including topographic, geologic, and seismologic data sets. Moreover, Landsat imagery and historical landslide data are introduced in assessing landslide susceptibility of the study area. All these data oriented to generate

In recent years increased attention is focussed on microorganisms inhabiting the digestive system that provides prophylactic and therapeutic benefits to the host. After Metchnikoff exposed the secret behind Bulgarian peasants' extended longevity, a graze to incorporate the responsible microbes in functional food emerged. Then interest towards microbe-rich food went to the vegetative phase for some

The paper deals with the variational iteration method to obtain a semi-analytical solution to some obstacle problems. We will focus on applications of a contact problem for a deformed beam with an elastic obstacle. To validate the accuracy this approach,the obtained solution has been compared with the exact solution, in the case where it can be calculated in the closed-form expression. Otherwise, a

Objectives Alcohols oxidation is one of the important organic transformation in fine chemical industries. Prevailing processes are hazardous due to involvement of stoichiometric oxidants and homogeneous catalysts. In the present work, oxidation of cinnamyl alcohol was carried out using unconventional, affordable, and feasible heterogeneous catalysts. Method Copper-titania (Cu-Ti) nanoparticles were

In the Sibu-Tatau region of Sarawak, the Belaga Formation (Late Cretaceous- Late Eocene turbidites) is interpreted in relation to a submarine fan model deposited in the extinct ocean basin of the proto-South China Sea. A number of clastic rocks, which include sandstone, siltstone, mudstone, and black shale, define the formation. While it is considered one of the Rajang group's extensive and well-studied

The environmental threats of soil subsistence in Jeddah city have been assessed using cross-hole seismic testing. These threats affect the state of health of roads, buildings, near-surface foundations ensuring a reliable and economic infrastructure design, as unanticipated site conditions can cause significant traffic problems, soil subsidence, and structural collapse. Cross-hole seismic testing is